152 [July. 



*Dicrpeus tibialis, Macq. — Col. Yerbiiry caught this species at Porthcawl 

 (Glamorgan) in Jiine, 1906. It has the front legs only and the base of the 

 abdomen i^ale. From an examination of long series of this and the last species 

 I have come to the conclusion that they cannot be considered varieties of 

 pallidiventris, Macq., or rufiventris, Macq. 



Li-para rujit arsis, Lw. — I have seen specimens in the Dale Collection, now 

 at Oxford, which were taken in the New Forest (Hants) and Seaton (Devon) in 

 June, it should therefore no longer appear in italics in the " List." It is a much 

 smaller and blacker species than lucens, with short whitish pubescence. 

 Macquart's G^ymnopoda tomentosa cannot be this species, because he described it 

 as " Noire, a duvet jaune," and gave the size as " 3 Kg.," both of which 

 characters apply only to lucens, Mg. 



*Elachyptera tuberculifera, Corti. — Eesembles E. cornuta, but the thorax is 

 somewhat duller though the lines are not so deeply punctate, the vertical tri- 

 angle is longex", the arista is stouter, and the scutellum is longer with about six 

 marginal bristles xipon tubercles more distinct than in cornuta. I have seen 

 one female only taken by Mr. F. Jenkinson at Crowboro' (Sussex), on August 

 27th, 1907. 



*Elachyptera megaspis, Lw. — I first foimd this si^eeies not imcommonly 

 in the neighbourhood of Swanage (Dorset) in Aiigvxst, 1906, but have seen 

 specimens from Devonshire, Sussex, Surrey, Cambridgeshire and Sviifolk. It 

 may be known Ijy its elongate scxitellvim with about six marginal spines placed 

 upon yellowish tiibercles, its yellowish humeri, postalar calli and plevu'se round 

 the root of the wing. The legs are pale yellow with brownish front tarsi. 



*ElacMjptera scrohiculata, Strobl {trapezina, Corti). — This species is not 

 uncommon at Chippenham and Wicken Fens (Cambridgeshire) in the first three 

 months of tlie year. The black head with only the faintest tinge of red about 

 the antennce, the flat punctate scutellum with a trtmcate tip, the brownish legs 

 and wings, and the somewhat pollinose thorax serve to distingixish the species. 

 Becker places it in the genus Oscinis, but from its general appearance and the 

 chsetotaxy, one must consider it an Elachyptera, in spite of the only slightly 

 incrassated and shortly pubescent arista. 



* Elachyptera jjuhescens, Thalhammer. — This has a smooth pollinose and 

 not strongly punctate thorax and scutelhun, and large loroininent yellow palpi. 

 It was not uncommon at Stvidland (Dorset), in August, 1906, and Col. Yerbury 

 found it at Christchixrch (Hants), in May, 1908. Corti places it in a separate 

 genus Lasiochxta. 



Melanochseta [Elachyptera) capreola, Hal. (aterrima, Strobl.). — This is very 

 much like the small black species of Oscinis, btit has a flattened and thickly 

 pubescent black arista. I found it at Whittlesford (Cambridgeshire), on June 

 17th, 1909. Haliday's description was as follows: "0. nigra nitida, fronte 

 " opaca triangulo nitido ; alis f uliginosis ; halteribus fuscanis ; arista crassa 

 " dense pliunata. Eesembles 0. Isevigata, but the arista as in 0. cornuta." The 

 character of the dark halteres is sufficient in itself to identify this Elachyptera, 

 all the other species having pale halteres. I believe this species is generically 

 distinct from Elachyptera. 



*Gaurax e2)hippi^mi, Zett. — Three females taken in the New Forest (Hants) 



