36
THE DIPTERA OF SUFFOLK.
THE DIPTERA OF FIRST BY
SUFFOLK.
SUPPLEMENT.
BERNARD S .
HARWOOD.
IT has probably never Struck you that Science fully describes and tabulates in classified sequence those infinite swarms of different midges that you see sitting on walls and palings, on fungi, and dancing in clouds high in the air over water, the fleas that attack so many different mammals and a few birds, the gnats that draw blood from your hand, daddy-long-legs twirling in small companies in the sheltered garden on summer evenings, about hedges in mid-winter and Aying indoors to light in autumn, gad-flies that torment cattle, the metallic-green flies gyrating close over stagnant water, the black-and-yellow hoverers poised still-ly in the air beside your head, bot-flies, dung-flies, bluebottles, carrot-flies, onion-flies, house-flies, lettuce-flies, celeryflies, cheese-mites and gout-flies, with the " ticks " upon horses, cuckoos, martins, swifts, sheep, honey-bees and even bats. Throughout these varied families, Diptera agree among themselves and differ from all other Insects in the possession of only a single wing upon each side of the body. The number of different British species was found in 1901 to be at the least 2577 by Verrall, whose published List (followed, for lack of a later, in this Supplement) is now partially superceded. Actually a conservative computation would put them at well over three thousand. The original " Diptera of Suffolk" (Trans. Norf. Nat. Soc. x, part i, Suppl. pp. 1-180) enumerated 1623 species as known to occur in our county up to 1915 ; the present Supplement raises the total now known here to 1887. Several hundreds more certainly exist, but have not yet been accorded adequate identification, which is necessarily a slow process when treating of such a mass of material. It is just this difficulty, and not the ubiquity of Diptera, that deters Naturalists from collecting " mere flies," beautiful as many are and interesting as is their economy, besides the mosquitoes' and rat-tailed maggots' possession of no small importance to man : that of the house-fly, a species confined to towns, is much over-rated. As far as one can judge at present, there are 2,993 species of Diptera in Britain ; and 1,887 species of Diptera in SufTolk.
In the following additions, only enough details to establish occurrence are given ; many are so abundant that the insertion of every locality would be superfluous.
THE DIPTERA OF SUFFOLK.
37
CECIDOMYID/E—Gall-midges.
Dasyneura filicina, Kf. (pteridis, M ü l l . ) — O n Bracken at T r i m l e y and Herringfleet, July 1932 (Ellis). D. galii,
L w . — O n Galium palustre, L., at St. Olaves (Ellis).
D. persicarice, L i n n . — I n leaves of Polygonum persicaria, L., at Fritton (Ellis). D. rosarum, H a r d . — O n Dog-rose at Trimley in July 1932 (Ellis). D. ulmarice, Brem.—Lothingland (Ellis). D. urtica, P e r . — O n Urtica dioica, L., at Trimley, Herringfleet, n. Flixton and e.' H o p t o n (Ellis).
Fritton,
D. veronica, Vall.—On Germander-speedwell at Iken in Tulv 1932 (Ellis). Oligotrophus bursarius, Brem.—Ubiquitous : on Ground-ivy in Onehouse Wood, 24 July 1932 (Ellis) ; a score bred f r o m galls on Nepeta-plants f o u n d at T h o r n h a m Magna, 10 August 1920 ; galls at Pettaugh, Hacheston, Letheringham. Contarinia loti, D e G . — O n Vicia sepium, L., in Onehouse W o o d , 24 July 1932 (Ellis). Clinodiplosis thalictricola, Rübs. (thalictri, T r . ) — O n rue at Bungay in July 1932 (Ellis).
Meadow-
Asynapta lugubris, W i n n . — O n P r u n u s domestica, L., Gorleston, 26 July 1932 (Ellis).
MYCETOPHILID^:—Fungus-midges.
Plastosciara Keilini, E d w . — " M r . W . R. T h o m p s o n found t h e larvafe] of this species in large n u m b e r s in rotten wood, at Barton Mills, Cambs. [siel, on April 20 " 1915 ( E M M . V 1915, p. 264). P. Belingi, W i n n . — F i v e - a n d - t h i r t y of both sexes were bred in September f r o m their puparia u n d e r bark of Pinus sylvestris, found at Brandonroad Heath, 5 August 1929. Rhymosia fasciata, M g . — A b u n d a n t on M o n k s Soham windows and in outhouses in late a u t u m n , u p to 19 Dec. in 1919 and 22 Dec. in 1922. P- domestica, Mg.—Occasionally on house-windows at M o n k s Soham in September. Exechia guttiventris, M g . — A d o u b t f u l speeimen swept at W a s h brook, 27 M a r c h 1897. E
~ Parva> L u n d . — I n T u d d e n h a m Fen on 9 September 1915. Docosia crassicornis, C u r t . — O n e on Angelica flower at Harkstead on 1 September 1903.
38
T H E DIPTERA
OF
SUFFOLK.
Glaphyroptera bimaculata, M g . — O n M o n k s S o h a m House window, 6 September 1920. G. cylindrica, W i n n . — A b u n d a n t in Staverton Thicks, e.g. on 22 August 1918. Anaclinia nemoralis, Mg.—Beaten f r o m mountain-ash in Bentley Woods, 29 M a y 1902. Boletina basalis, M g . — S w e p t in Bentley W o o d s on 13 M a y 1900. Tetragoneura hirta, W i n n . — L e t h e r i n g h a m marsh in Sept. and M o n k s S o h a m windows in May. Monoclona rufilatera, W a l k . — O n house-window at M o n k s Soham, 12 October 1922. Sciophila (Mycomyia) lutea, M c q . — A doubtful example at M o n k s Soham, on 2 J u n e 1921. S. (M.) cinerascens, Z e t t . — O n house-window at M o n k s Soham, 2 April 1921. (M.) lucorum, W i n n . — S w e p t in Staverton Thicks, 7 September. Asindulum rostratum, Zett.—Abundant on Heracleum flowers in M o n k s Soham orchard in July ( E n t o m . 1920, p. 87). Platyura atricauda, M g . — O c c u r r e d , probably commonly, with t h e last species in the orchard on 15 July 1916. B. fasciata, L a t r . — T a k e n Aying, very like Culex pipiens, in M o n k s S o h a m garden, 15 August 1913. P. flava, M c q . — B e a t e n f r o m oak in Staverton Thicks on 14 June. P. flavipes. Mg.—Several on Heracleum flowers and nettles at Wherstead, 27 Oct. 1903. P. unicolor, Stffig.—Common on M o n k s Soham windows in July 1913 et seqq. P. zonata, Z e t t . — O n the same windows on 6 July, 1915. P. concisa, W a l k . — O n e taken at M o n k s Soham, 4 M a y 1921. BIBIONIDJE—St. Mark'S F l i e s .
Scatopse inermis, Ruth.—Always a b u n d a n t garden in J u n e and August.
in M o n k s
Soham
CHIRONOMIDIE—Unbiting-gnats.
hiscula, Edw.
T h e types of both sexes of these { new species were t a k e n at i Mildenhall, 25 April 1916 ( E M M .
Thalassomyia Frauenfeldi, S c h i n . — D u n w i c h , Gorleston (Trans, i, 212) ; Kessingland (Ellis).
THE DIPTERA OF SUFFOLK.
39
Chironomus nigrimanus, Staeg.—Flying commonly over Monks Soham moat, 5 June 1919. Tanytarsus flavipes, Mg.—Swept in Tuddenham Fen, 9 Sept. 1915 ; doubtless abundant. Tanypus culiciformis, Linn.—On reeds in Southwold salt-marshes 'on 20 April 1910. Ceratopygon bipunctatus, Linn.—Abundant during August in Monks Soham house and garden, sometimes in cop. C. amcenus, Winn.—Excessively abundant near water at Monks Soham ; on windows in May. PSYCHODIDIE.
Pericoma trivialis, Eat.—Abundant in Monks Soham garden, at least 4 May to 26 August. CULICIDTE—Mosquitoes.
Corethra plumicornis, Fab.—Common in Monks Soham garden, May to early September. Culex cantans, Mg.—Assington Thicks (Harwood), Tuddenham, Sproughton, Henstead and not uncommon at Monks Soham in May and June. C. vexans, Mg.—Several at Tuddenham Fen, in August 1900 ; Monks Soham. C. nemorosus, Mg.—Assington Thicks (Harwood). Bentley Woods in August, 1899 and 1903 ; Monks Soham in October. C. nigritulus, Zett.—One of the commonest species at Monks Soham in May and J u n e ; not hitherto noted elsewhere. LIMNOBID.«—Smaller Daddy-long-legs. Dicranomyia pilipennis, Egg.—A female Aying at Belstead on 5 June 1904. D. mitis, Mg.—Males swept from rough grass in Wherstead saltmarshes, 6 June 1904. D. stigmatica, Mg.—Doubtless abundant: Bentley Woods on 12 June 1904. Rhypholophus varius, Mg.—Marshes on Blythburgh Heath, Sept. 1912 ; probably locally common. Erioptera macrophthalma, Lw.—At light at 9 p.m., Monks Soham House, 18 August 1919. Trimicra pilipes, Fab.—A male on Monks Soham House-window, 3 August 1915. Ephelia apicata, Law.—Blythburgh Wood (Trans, i, p. 228); Monks Soham garden, 1906 and 1920.
40
THE DIPTERA OF SUFFOLK.
E. submarginata, Verr.—Belstead and Barnby Broad on Angelica flowers in August; Monks Soham garden. Dactylolabis gracilipes, Lw.—Wherstead and Monks Soham. Pcecilostola punctata, Sehr.—Cornard Parva (Harwood). Limnophila lineolella, Verr.—Letheringham marsh in September. L. subtineta, Zett.—A female Aying along a ditch in Dodnash Wood, 27 April 1897. L. lucorum, Mg.—Both sexes at Ashfield near Debenham on 23 June 1921. L. nemoralis, Mg.—Wherstead on 19 June 1904. Trichocera fuscata, Mg.—Taken at Ipswich on 17 March 1895. Gnophomyia tripudians, Berg.—Larvse very numerous under bark of a dead oak at Mildenhall, found by Dr. D. Keilin of Cambridge in summer of 1918 (New to Britain : EMM. 1919, p. 176). Not met with later in Suffolk.* TIPULIDJE—Larger Daddy-long-legs. Pachyrrhina analis, 16 June 1917.
Sch.—Flew into Monks
Soham
House,
P. lunulicornis, Sch.—Occasionally in Monks Soham during June.
garden
Tipula obsoleta, Mg.—Occasionally in Monks Soham, October. T. flavolineata, Mg—Taken at Ipswich on 22 April 1897, among grass by a pond. T. montium, Egg.—Found at Barton Mills by Verrall (New to Britain: EMM. 1924, p. 83). T. Diana, Mg.—Males Aying commonly near marsh in Cretingham, 3 May 1922. TABANID/E—Horse-Aies.
Tabanus maculicornis, Zett.—Assington Thicks (Harwood). *On 5 July 1931 I was so fortunate as to discover at 3 p.m. a large colony of both sexes, just emerged from their slightly projecting, flavous puparia (which have a horny caudal process, apically bifid), among frass containing their larval-skins. Imagines were sitting so quiescently as to be gently boxed upon the top, sides and sawn end of a large prostrate beech-trunk, with no other insects but a couple of the Hemipteron, Aradus depressus, Fab. and no poplar in the whole wood, at Miserden, near Stroud, in Glos. A series was sent to the British Museum.—C.M.
THE DIPTERA OF SUFFOLK.
41
BOMBYLID/E—Bee-flies.
Anthrax cingulatus, Mg.—Here belongs the A. Paniscus from Leiston, 25 July 1899.
recorded
A. circumdatus, Mg.—Here belongs the A. Paniscus from Tuddenham, 29 August 1902.
recorded
EMPID/E—Wolf-flies.
Cyrtoma nigra, Mg.—Probably common; on house-windows 11 June 1924.
Monks
Soham
Rhamphomyia longipes, Coli.—Bentley Woods, Assington Thicks and Brandon staunch in May. R. albiditarsis, R. caliginosa,
Coli. Coli.
R. plumipes,
Mg.
R. sulcatella,
, 'Found in Suffolk ( E M M . 1926, pp. 213 J
and
231
Coli.—Assington on 15 May
)" 1928
(Harwood).
Hilara bivittata, Coli.—An abundant species, e.g. Monks Soham garden, hovering at rose at dusk on 21 June 1915. Euthyneura
Halidaü,
Coli.—Suffolk
(EMM.
1926,
p.
213).
Drapetis humilis, Frey.—Common in Newmarket stable in summer ( E M M . 1926, p. 148). D. convergens, Coli.—A unique female taken at Orford, 26 August S 1907 (I.e., p. 149). Tachista halterata, Coli.—" I possess speeimens from Suffolk " (New to Science : I.e., p. 151). Tachydromia pulicaria, M g . — " Speeimens from Suffolk " (New to Britain : I.e., p. 152). T. aurantiaca, Coli.—Only two known, both females : " One taken by Verrall at Orford in June 1907, one at Timworth m April 1912 by Nurse " (New to Science: I.e., p. 152). T. albifacies, Coli. T. infecta, Coli. T. aristata, Coli. T. tantula,
Coli.
- pracincta,
T
- leueoeephala, - pictitarsis,
T
and 185).
Ros.
T
T
All recorded from Suffolk (I.e., pp. 153
Coli. Beck.
- Stigma, Coli.
T. maculipes, Mg.—Foxhall on 30 May 1896 : doubtless common.
42
THE DIPTERA OF SUFFOLK.
DOLICHOPODIDZE—Stilt flies.
Neurigona abdominalis, Fln.—On Monks Soham house-window, 9 July 1914. Dolichopus Wahlbergi, Zett.—Several in Letheringham Old Park, 6 Aug. 1918, and one in Bentley Woods, 16 June 1919. Hypophyllus discipes, Ahr.—On Monks Soham house-window, 20 July 1918. Argyra confinis, Zett.—One at Letheringham Old Park on 15 August 1918. Porphyrops crassipes, Mg.—Assington on 15 May 1928 (Harwood). Xiphandrium appendiculatum, Zett.—Taken in Staverton Thicks on 20 August 1917. [X. caliginosum, Mg.—Confirmed for Suffolk by one on Monks Soham window, 21 Aug. 1919.] LONCHOPTF.RID/E.
Lonchoptera trilineata, Zett.—Bentley Woods in March, Dunwich cliff in April, Southwold pier in July, etc. PLATYPEZID/E—Fungus-flies.
Agathomyia antennata, Zett.—A female in Letheringham Old Park on 15 August 1918. A. Collini, Verr.—Abundant in Monks Soham orchard, 1915 et seqq. (Entom. 1918, p. 88). Platypeza consobrina, Zett.—Several females in Parham Wood, 5 October 1916 (Vinter). P. furcata, Fln.—Several in Boletus-fungus at Redlingfield Wood, 10 June 1922, and on leaves in Monks Soham garden, May. P. picta, Mg.—A male on hornbeam bush in Parham Wood, 5 October 1916. PIPUNCULID/E—Froghopper-parasites.
Verrallia pilosa, Zett.—Typical form swept from Mercurialisplants in B e n t l e y Woods, 26 May 1898 ; a male of vor. setosa, Verr., beaten from birch in Assington Thicks, 16 May 1902. SYRPHIDIE—Hoverer-flies.
Pipizella maculipennis, Mg.—Sudbury (Harwood). I n marshes at Tuddenham in June, and at Herringswell and Finboro. Pipiza signata, Mg.—Several in Fiatford and Lowestoft marshes on umbells in August. [P. lugubris, Fab.—Confirmed for Suffolk at Sudbury (Harwood).]
THE DIPTERA OF SUFFOLK.
43
Chilosia carbonaria, Egg.—Tuddenham, Ipswich, Monks Soham ; and common on Charophyllum flowers in Denham Wood on 19 May 1923. C. barbata, Lw.—Assington on 6 May 1927 (Harwood). A female in Tuddenham Fen on 20 May 1904. C. intonsa, Lw.—Rare in marshes during May, by the Gipping at Ipswich in 1895 and at Oulton Broad in 1905. C. mutabilis, Fln.—Barton Mills, Eyke and Shrubland Park, Aug. Melanostoma dubium, Zett.—Oulton Broad on 18 May 1905, etc. Syrphus nitens, Zett.—Frostenden, Southwold and Dunwich, July to September 1923-8. Eristalis rupium, Fab.—Apparently rare : North Cove on Angelica flowers, 12 September, 1922. Brachypalpus bimaculatus, Mcq.—One male of this rare species was sitting, like a Xylota, on a large felled oak-trunk in Parham Wood, 2 June 1921 ; a female on Monks Soham House window, 4 June 1922. Chrysotoxum arcuatum, Linn.—August and late July ; Bentley Woods and Monks Soham. [Xanthandrus comtus, Harr.—Confirmed for Suffolk by one in Sudbury garden during August 1930 (Harwood). Its larva subsists on live caterpillars of Hastula Hyerana and other moths.] C0N0PIDIE.
Conops strigata, Mg.—Singly in Shrubland Park on 4 August 1921, and Blythburgh Wood on 30 July 1924. Myopa ephippium.—Roberts Bridge on Cavenham Heath on 30 June 1915 (Harwood). [M. polystigma, Rnd.—Confirmed for Suffolk on apple-flower at Waldingfield Magna (Harwood). Bentley Woods, May. CESTRID/E—Breeze-flies.
Hypoderma bovis, DeG.—Two on pathway, Sudbury Common Lands (Harwood). [(Estrus ovis, Linn.—Larvre only, from sheeps' heads in S u d b u r y : confirmed for Suffolk (Harwood).] TACHINID/E—Moth-parasites.
Exorista mutabilis, Fln.—Not uncommon on umbells in August at Winston, Thorndon, etc.
44
THE DIPTERA OF SUFFOLK.
Myxexorista libatrix, Mg.-Covehithe in Sept. 1912 and several on Heracleum flowers at Monks Soham in August 1917 (Morley). Bred from Brephos notha near Tattingstone (W. H. Harwood). Bred from Arctia caia at Sudbury (B. S. Harwood, teste Wainwright). Zophomyia temula, Scop.—On Angelica flower in Thorndon marsh, 22 August 1925. Phorocera cilipeda, Rnd.—Bred from Bombyx neustria at Sudbury. Tachina nigricans, Egg.—Common on flowers at Monks Soham and Thorndon throughout August. Erigone strenua, Mg.—Assington (Harwood). Several on flowers in Bentley Woods during 1923-4. E. casia, Fln.—Ipswich on 17 August 1896 : mixed with the common E. radicum, Fab. Servillia lurida, Fab.—The extreme rarity here of this abundant Hampshire species is remarkable: only a couple have been seen at flowers of Cichorium intybus in a chalky lane at Town Street in Brandon on 22 August 1924. Unrecorded from Norfolk. Sarcophaga offuscata, Schin.—On Achillea flower at Tattingstone, 5 July 1899, and in fly-trap at Monks Soham, 24 July, 1917. S. nigriventris, Mg.—Brandon in house 14 June 1899, and at Freckenham 10 August 1928. S. affinis, Fln.—Staverton Thicks, Mariesford and Rishangles. S. incisilebata i S. vicina l Wainwright.—Sudbury (Harwood). S. frenta S. aratria ' Metopia amabilis, Mg.—'Taken near Brandon in June 1921, associating on Wangford Heath with Oxybelus umglumis, h. M. argentata, Mcq.—Brandon heaths, Covehithe, and common in Shrubland Park during July 1923-8, associating with the same Fossor. Ceromasia sordidisquamce, Wainwright.—Breck District(Harwood). Epicampocera conspersa, Mg.—Sudbury (Harwood ; Wainwright). MUSCID/E—House-flies.
Pyrellia cyanicolor, Zett.—Bentley Wood on 16 June 1919; Monks Soham in May. Lucilla ruficeps, Mg.—On flowers at Alderton, Ipswich and Wangford Wood near Southwold.
THE DIPTERA OF SUFFOLK.
45
L nobilis, Mg.—One specimen on a house-window in I pswich on 14 March 1895. L. splendida, Mg.—On flowers at Monks Soham and Thorndon. ANTHOMYID/F.—Country-flies.
Hyetodesia abdominalis, Zett.—Several on Monks Soham housewindows in mid-August. Mydcea nigricolor, Fln.—Taken 7 September 1917.
in
Staverton
Thicks
on
M. allotalla, Mg.—Taken in Gipping marshes at Bramford on 7 July 1897. Spilogaster denigrans, Meade.—Breck District (Harwood). Limnophora marina, Coli.—Syntypes taken at Aldeburgh Yerbury (EMM. 1921, p. 172).
by
L. cerea, Fln.—" In the Valley of the river Deben and at Butley in June " (loc. cit.). L. biseriata, Stein.—On the sea-coast at Aldeburgh by Col. Yerbury (I.e., p. 173). L. veterrima, Zett.—On the sea-coast at Southwold and Aldeburgh (I.e., p. 175). L. triangula, Fln.—" Widely distributed in Britain, Suffolk," etc. (I.e., p. 243). Ophyra anthrax, Mg.—Glevering Park in Hacheston on 11 May. Chortophila buccata, Fln.—" Rare in Britain. At present only a single male, caught by Col. C. G. Nurse at Livermere in Suffolk, can be recorded " (Trans. Ent. Soc. 1920, p. 322). C. personata, Coli.—Taken by Verrall at Newmarket and Barton Mills (New to Science : lib. cit. 1920, p. 319). Phorbia cepetorum, Meade.—The Onion Fly of Cornard and Sudbury gardens (Harwood). Pegomyia gemipunetata, Stein.—Larva of this species (conformis of Wingate) mine leaves of Arctium lappa at Monks Soham in May (Entom. 1916). P- pallidiceps, Zett.—Not uncommon on Monks Soham housewindows during 1921-8. P- heemorrhoum, Zett.—A female on same windows, 12 August. P• rufipes, Fln.—Taken at Barton Mills on 24 August 1900. P- fulgens, Mg.—A female on Monks Soham house-windows, 15 July 1928.
46
THE DIPTERA OF SUFFOLK.
P. Winthemi, Mg.—Common on those windows and Heracleum flowers, June to October. P. ephippium, Zett.—Several on the same windows during July to September. Canosia dorsalis, Ros.—Swept from reeds at Potters Bridge near Southwold on 20 September 1913, and at Frostenden on 4 September 1928. CORDYLURIDIE—Dung-flies.
Cordylura rufimana, M g . — A female taken at Thorndon on 30 June 1923. C. socialis, Beck.—A male swept from a damp ditch at Claydon on 10 June 1897. C flavivenosa, Beck.—A male taken at Brandon staunch on 22 May 1922. Parallelomma dispar, Zett.—Common: Tuddenham, Barton Mills, Oulton, Foxhall. P.
fuscitibia, Rnd.—Brandon, Mildenhall, Tuddenham, Oulton, Monks Soham, etc.
P. media,
Brandon,
Barton
Mills,
Beck.—Taken in Tuddenham Fen in both 1904-08.
Amaurosoma
flavipes,
Fln.—Swept in Barnby Broad on 18 June.
Norellia armipes, Fln.—Rarely taken on Monks Soham windows in June and July. Scatophaga scybalaria, Linn.—Abundant throughout the county : taken at Monks Soham. S. merdaria, F a b . — C o m m o n : formerly thought female of S. stercoraria, which it is not. Gymnomera dorsata, Zett.—One swept from reeds in marshes at Brandon on 10 June 1908 (Elliott). [I have found it only in Grovely Wood, Wilts, on 27 June 1911.—C.M.] Hydromyza livens, Fab.—Common Oulton Broad, 6 July 1930.
on
white
Cochliarium albipila, Zett.—Flying indoors, House, March 1921 and August 1923.
Water-lilies Monks
at
Soham
HELOMYZID/E.
Helomyza pectoralis, Lw.—Always to be had in marshy Blythburgh wood, 1928 et seqq.
47
THE DIPTERA OF SUFFOLK.
HETERONF.URID/E.
Heteroneura alpina, Lw.—Singly at Monks Soham, in garden during June and July. SCIOMYZID/E—Reed-flies.
Dryomyza decrepita, Zett.—Found Assington Thicks in 1899.
at Ipswich in
1895
and
Sciomyza nigrimana, Mg.—On Monks Soham windows in early August 1923 and 1928. S. obtusa, Fln.—Once only on Monks 16 July 1927.
Soham
house-window,
S. bifasciella, Fln.—Swept from marsh-herbage Staunch, 22 June 1914 and 31 July 1930 *
at
Brandon
S. pusilla, Zett.—Rarely swept in June and August at Brandon, Eriswell and Tuddenham.
PsiLiDiE—Carrot-flies. Psila debilis, Egg.—Rare at Sudbury and Cornard Parva in 1916 (Harwood) ; occasionally on the beach at Southwold in July. P- atra, Mg.—Probably common ; Felixstow Monks Soham, Mildenhall, etc.
in April
1897,
P. gracilis, M g — N o t rare, at least in Monks Soham garden and Tuddenham Fen. Chyliza annulipes, M c q — R a r e on Monks Soham house-windows in August and late July. ORTALID/E—Waver-flies.
Ptilonota centralis, Fab.—Rare : Shrubland Park, 3 June 1897 (with Dorycera) ; and on hazel in Onehouse Wood in May 1928. [Common about Peterboro.—C.M.] At Brandon Staunch have occurred to me at least half the British species of this genus, e.g. Sciomyza glabricula, nana, Schonherri, cinerella, aubia, palhdiventris, palhdicarpa, pusilla, simplex, albicostata, etc., among tnasses of other Fen insects, since I first visited it in September 1896. ßeside this Staunch three or four acres of osiers were planted in 1885 p u r p o s e of äff withy-growing for basket-making ; by 1900 this wood, attording the sole shelter for some distance on the marshes that were iormerlv an eastward arm of the old Fen Sea, had become neglected, a n d lnt Ttk°V ertwined swampy covert, ideal for all wild marsh life. « Delongs to Mr. Parrot of the adjacent Feigate Farm. It is recommended 'or Ijovt. preservation (cf. Proc. supra, p. xvii).—C.M.
4G
THE DIPTERA OF SUFFOLK.
Pteropcectria palustris, 26 June 1923 *
Mg.—Rare
in
Staverton
Thicks
on
TRYPETID/E—Gallmaker-flies.
Trypeta falcata, Scop.—Found at Bramford on 9 August 1897 ; Claydon on 10 June. Spilographa alternata, Fln.—Bred commonly from hips about Sudbury (Harwood). Urophora macrura, Lw.—Common everywhere: hitherto here mixed with U. solstitialis, L. LoNCHJEiDiE—Sun-flies. Loncheea palposa, Z e t t . - S w e p t from reeds at Easton Broad on 3 June 1905. L. anea, Mg.—Wangford and Walberswick woods in September 1910 and 1912, etc. L. pusilla, M g — O n Artemisia in Wherstead salt-marshes, 9 August 1904. L. laticornis, Mg.—Southwold and common on bush-leaves in Monks Soham garden. Palloptera usta, Mg.-Certainly very rare : one only near Ipswich during 1894. SAPROMYZIDJE—Spotwinged-flies.
Sapromyza flaviventris, Cost.-Ipswich on 8 August 1904, and Mildenhall on 19 June 1915. S. bipunctata, Mg.—In Monks Soham garden on 25 July 1917. S. placida, Mg.—In fir wood at Barton Mills on 5 June 1916, and Brandon staunch. S. tarsella, Zett.—On flowers and windows at Monks Soham in July and August. 5. decipiens, L w . - C o m m o n everywhere from June to September : Assington, Eyke, etc. * After fourteen years collecting in Suffolk, the first two s p e i e n 8 °f
j a s f s w y s ? rar
Cexceotinu one straegler on the bank of Levington Creek by tne KJVC OmeU 18 July 1923) until both sexes abounded in mu t.tudes upon the verv same Buss Creek reeds wh1Ch had been annually worked m the Interim on 27 July 1926 : nor have I seen the spec.es since that date Here is an interesting Problem for t h e p e r . o d i s t s w h o a r c e ^ ^ in f ., r t o o „ r o n e to turn to vague " incursions from the Continent case o°f Lepidoptera : equally certainly this small Dipteron could nngrate in no such manner. In every case the Situation was highly sahne. C.M.
THE DIPTERA OF SUFFOLK.
49
S. apicalis, Lw.—Taken at Foxhall, Monks Soham, etc., in June. Lauxania cylindricornis, Fab.—Taken in breck wood at Mildenhall on 3 May 1923, 4 June 1928 and abundant by sweeping the grass, Triticum junceum, beneath oaks there on 31 May 1929. [Elsewhere found by me only at Aldridge in New Forest. C.M.] OPOMYZID/E.
Balioptera venusta, Mg.—Bentley Woods, and a pair in cop. at Southwold in 1919. SEPSID/E—Carrion-flies.
Sepsis flavimana, Mg.—On Heracleum flowers in Monks Soham orchard, 12 August 1917. PIOPHILID^E—Carrion-flies.
Piophila atrata, Fab.—Common : in dead Jays at Bentley Woods, June, and dead Rabbit at Walberswick, September ; Monks Soham windows. P. nigrimana, Mg.—Not rare on Monks Soham windows, usually at 6 p.m., in July and August. EPHYDRID/E—Mud-flies.
Notiphila stagnicola, Mcq.—Doubtless common: Brandon staunch, 20 June 1914. N. maculata, Stnh.—Abundant in St. Olaves marshes, Herringfleet, in July 1928. Psilopa nigritella, Stnh.—Swept from reeds in Southwold marshes, 27 July 1926. Hydrellia hydrocotyles, Hai.—Always very abundant in the Staverton marshes. H. porphyrops, Hai.—Several swept at Buss Creek, Southwold, on 16 September 1928. H. ranunculi, Hai.—Swept at Eyke marshes on 20 August 1917. H. tarsata, Hai.—June to August: Barton Mills, Tuddenham Fen, and Wherstead. Philhygria interrupta, Hai.—Swept from reeds at both Mildenhall and Southwold. P- posticata, Mg.—One, sitting on brick wall, Monks Soham, 21 June 1919. Parhydra pubera, Lw.—Probably common : swept in Tuddenham Fen on 9 September 1915. Ephydra salince, Zett.—Many at Southwold on 6 September 1907. E. micans, Hai.—Common on reeds : Easton Broad in Sept. 1913, and Covehithe Broad in July 1926.
THE DIPTERA OF SUFFOLK.
50
Scatella noctula, Mg.—Constantly in sand-pits at Bentley W o o d s and Gisleham in July and September, since 1923. [Cromer in August 1903.—C.M. N e w to Norfolk.] Cania albula, Mg.—Several at Covehithe Broad during September. Scatophila
despecta,
Hai.—Flying
in
Monks
Soham
garden.
Mosillns subsultans, F a b . — O n e on a post at Ramsholt church on 7 September 1920. GEOMYZiDiE—Mud-flies.
Anthomyza
grisea, F l n . — M o n k s Soham and Gisleham in a u t u m n . DROSOPHILID/E—Wine-flies.
Mg.—'Taken at Bramford ry Station on
Scaptomyza flaveola, 7 August 1897.
CHLOROPiDiE—Gout-flies.
Platycephala umbraculata, F a b . — M i x e d with P. planifrons, and m u c h rarer : Lowestoft, Easton Broad and Southwold. Siphonella lavigata, Fln.—One 22 August 1921.
in M o n k s
Soham
stable
on
S. nucis, P e r . — T a k e n on the breck at Eriswell, 9 August 1928. Chlorops brevimana, Lw.—Several swept at Brandon staunch on 23 M a y 1923. C. gracilis,
Mg.—On
Monks
Soham window,
16 July
1919.
C. puncticornis, L w . — O n e on ivy in M o n k s S o h a m garden, 27 M a y 1927. C. humilis, L w . — S w e p t f r o m Erica tetralix on Blythburgh heath. Chloropisca lineata, F a b . — T a k e n at O u s d e n on 24 September 1907. Oscinis atricilla, O. nigripes,
Zett.—Swept at Staverton on 7 September 1917.
Zett.—By no means u n c o m m o n at Brandeston, etc.
O. nana, Zett.—Brandon, T u d d e n h a m Fen, etc. ; one, on M o n k s S o h a m window on 24 August 1919, bore two (comparatively) huge Gamasid mites. O. frontella, F l n . — O n M o n k s Soham windows. [Several at Horning, 16 July 1922.—C.M. N e w to Norfolk.] O. sulcella, Zett.—Annually common on t h e windows of M o n k s Soham House. AGROMYZID/E—Leaf-flies.
Agromyza lacteipennis, 18 J u n e 1919, etc. 1912.—C.M.]
Fln.—On Monks Soham windows, [ C o m m o n at Skegness in Lines. J u n e
THE DIPTERA OF SUFFOLK.
51
A. pusilla, Mg.—On the same windows, 17 July 1921, etc. A. flaveola, Fln.—Several swept at Letheringham in August. Ochthiphila geniculata, Hai.—Foxhall in August 1897, Monks Soham windows in June 1922. PHYTOMYZID/E—Leaf-flies.
Phytomyza albipennis, Fln.—Abundant in cop. on Stuston Common, 30 April 1926. P. notata, Mg.—Swept at Bentley Woods on 13 May 1900 ; et seqq. P. rufipes, Mg.—Swept from hedge-bottoms in Bramford on 3 May 1901. P. Zetterstedti, Sch.—Swept in Henstead marsh ; Pannington and Dodnash Woods, sometimes as early as March. BORBORID/E—Winter-flies. Spharocera denticu'ata, Mg.—Monks Soham window on 13 Nov. 1922; Staverton Thicks, and Brandon staunch; singly. Limosina geniculata, Mcq.—Henstead, Staverton, Tuddenham, etc., September to March. L. flaviceps, Stn.—One on Monks Soham house-window, 1 September 1916. L. quisquilia, Hai.—Several swept in marsh at Letheringham on 13 September 1920. PHORIDIE—Winter-flies. Phora Fennica, Beck.—On windows of Monks Soham house, 14 May 1921. P. crassicornis, Mg.—A common species in Tuddenham Fen, and on Monks Soham windows and running on dogs' kennel. P- unispinosa, Zett.—A male in Wherstead Brook marshes in M a r c h ; on Monks Soham windows, one bearing a large Gamasid mite. P- chlorogaster, Beck.—Common on pines at Barton Mills in June ; Monks Soham windows. P- pygmcea, Zett.—Common on the same windows in September and March. P- lutea, Mg.—Rarely taken upon the same windows in Oct. P- melanocephala, Ros.—Shrubland Park ; abundant on Monks Soham house-windows throughout the winter from September to April. P- minor, Zett.—Common on these windows in March. P- ciliata, Zett.—Several specimens found in hedge-bottom moss at Bedfield in February 1921.