230 [October, 



Liomyza (jlabriculii, Meig. — I cannot recognise this as a distinct British 

 species, and suspect it to be only scatophagina. The name must remain in 

 italics in the " List " as reqviiring confirmation. 



DROSOPHILIDJE. 



Periscelis annidata, Fin., was first recorded as an addition to our fauna by 

 by Mr. C. G. Lamb in this Magazine for 1904, p. 277. I took a male at Boyton 

 (Suffolk) in June, 1910. 



^Periscelis nigra, Zett. — This species was described by Zetterstedt as Asteia 

 nigra (and so appears in Kertesz's " Katalog"), because the cross-vein closing 

 the discal cell is absent, in whicli character it agrees with P. a^mulipes, Lw., 

 differing however in having paler antennae, a silvery- white lower part to the 

 face, &c. Mr. C. G. Lamb found it at Nethy Bridge in June, 1905. 



Acletoxenus formosus, Lw. — This is the A. syrphoides of the " List " {v. Ent. 

 Mo. Mag., 1902, p. 282). In Kertesz's "Katalog" it is placed under the genus 

 Gitona, and is called ornata, Meig., but it miist be generically distinct from 

 Gitona because of its flat face and the absence of ocellar bristles, while ornata, 

 Meig., was probably a triie Agromyza, for Meigen's description of the abdomen 

 in no way applies to forynosus, Lw. 



Phortica variegata. Fin., was first recognised as occurring in Britain by 

 Dr. Sharp {v. this Magazine for 1903, p. 248). Col. Yerbury has since taken it 

 in some niunbers on a cossus-infested tree in the New Forest in company with 

 the next species. 



*P'hortica alboguttata, Wahlbg., differs from variegata in being a shining 

 black species, with the front mouth-edge, the humeri, a spot under the wing, 

 and the club of the hal teres pure white. Col. Yerbury 's specimens were taken 

 in September, 1909, in the New Forest (Hants). 



Stegana curvipennis. Fin. — I have not seen a British specimen of this 

 species, though it must occur in Britain. It remains in the " List " upon the 

 authority of Haliday (Walker's Ins. Brit. Dipt., iii, p. xiv). 



Drosophila tristis, Fin. — I found a number of this species frequenting a 

 cossus-infested tree at Barton Mills (Suffolk) in May, 1909. Fallen's name has 

 been universally recognised as applying to a species of Drosophila, near ohscura ; 

 Zetterstedt, in describing the species, said, " Ipsissimum specimen quod descripsit 

 Fallen jam ante oculos haheo Sf illud cum nostris bene congruentihus comparavi," 

 and though the specimen under the name tristis in Fallen's collection may noiv 

 be found to be an example of Diastata punctum, I consider that Zetterstedt's 

 interpretation of the species must be accepted, for there is no proof that the 

 specimen now in Fallen's collection is the original type seen by Zetterstedt, 

 which type may well have been misplaced or destroyed. 



*Drosophila rufifrons, Lw.- — This belongs to the tristis group, and may be 

 known by its simple male front tarsi and the reddish tinge to the frontal stripe. 

 Mr. Verrall took it in some numbers at Lingfield (Surrey) on Jiily 30th, 1887, 

 and I have records of it from the New Forest (Hampshire). 



*Chymomyzafuscimana,Zett. — Czerny founded this genus in 1903 (Zeitschr. 

 Hym. Dipt, iii, 199), its distinctive characters lying in the flat face with a 



