1911] 231 



central keel, the presence of three pairs of strong orbital bristles, the front 

 pair pointing backwards, the very minute postvertical bristles, &c. C fusci- 

 mana has the frons and thorax yellowish, abdomen shining black, legs pale, 

 with the end of front femora and the front tibiiu and tarsi more or less darkened, 

 though often only indistinctly, the costal vein dark, and there is a distinct 

 cloud below the end of the radial vein, the actual tip of the wing being whitish. 

 Col. Yerbury took four males at Tarrington, Herefordshire, in July, 1902. 

 Drosophila distincta, Egger, miist be a synonym. 



*Chymomyza costata, Zett. — This is a mtich darker insect than /uscxniajia, 

 the frons and thorax being greyish-black, the costa darkened, but the tip of 

 wing not whitish. Col. Yerbury foimd a male at Nairn in July, 1905 ; I took a 

 female at Chippenham (Cambs.) in September, 1908, and Mr. C. G. Lamb has 

 found it in the New Forest (Hants). 



*Droso2)hila ingrata, Hal. — I have not been able to I'ecognise this species 

 described by Haliday as " distinguished from the last {tristis, Fin.) by the 

 " broad and short hind shanks and feet," and fvu-ther distingviished by Curtis 

 (Brit. Ent., 473) under the name nigrita, Hal., for I have very little dovibt that 

 these two names refer to the same insect. 



Drosophila littoralis, Meig. — I know of no British species of Drosophila 

 answering to Meigen's description. 



Scaptomyza flava. Fin. — Fallen's species is a true Drosophila, while the 

 species given by Curtis as British under this name was flavcola, Meig., = 

 apicalis. Hardy, ^ pallida, Zett. {v. Hal., in Walker's Ins. Brit. Dipt., iii, 

 p. xiv). Therefore, D. flava, Fin., remains unconfirmed as British. 



Scaptomyza gracilis, Wlk. — Haliday pointed out in Walker's Ins. Brit. 

 Dipt., iii, p. xiv, that this species belongs to the genus " Opomyza, Mg., = Lep- 

 tomyza, Mcq., = Anthophilina, Zett.," by which he meant what we now call 

 Anthomyza, Fin., and as an Anthomyza gracilis already existed, whatever 

 Walker's species may be, his name cannot stand. 



*Scaptomyza tetrasticha, Becker. — This species, distinguished from grami- 

 mum by the four rows of acrostichal bristles, is not iincommon in England. 



*Camilla acutipennis, Lw. — I recognise this species in two specimens taken 

 at Orford (Suffolk) by myself in the middle of June, 1907, and one by Col. 

 Yerbury at Tarrington (Hereford) in August, 1902. The genus appears in the 

 " List " as Notcrophila, End., but there is no valid reason for supplanting 

 Haliday's name of Camilla. 



GE0MYZID7E. 



*Diastata vagans, Lw. — A female of this species was taken by Col, Yerbury 

 at Nairn (Scotland), on July 4th, 1904. It is very distinct in having the whole 

 length of the costa and the postical cross-vein infuscated. 



Diastata fuscula. Fin. — I am convinced that this is the correct name for 

 fidvifrons, Hal., and inornata, Lw., though it appears in Kertesz's "Katalog" 

 imder costata, Mg. Fallen no doubt had both costata, Mg., and inornata, Lw.= 

 fidvifrons, Hal., under his fuscula, but his description does not apply so well to 

 costata. Haliday himself sank his fidvifrons as a synonym of fuscula, and 

 Haliday's species was certainly not costata, Mg. 



