1875.] 143 



hypopygium seem simllnr, but perhaps more jagged at the tip ; the 

 wings are more pellucid, the veins being less iufuscated ; the di;^coi(hil 

 with a slighter flexure, ending slightly before the tip of the wing ; the 

 stigmatical swelling is very distinct, and extends for some distance. 



The female may be distinguished from D. medilcornis $ by the 

 darker antenmie, paler base of anterior tarsi, moi*e darkened tip of 

 hind tibia?, and by the much narrower epistoma. 



The only points in Zetterstedt's description which cause the 

 slightest doubt as to the species are the size, which he calls as much 

 as in D. trivialis, while my specimens are distinctly smaller ; and a 

 remark which he makes under his description of D. consohrinus (D. S., 

 xiv, p. 5050) ^ viaculicornis, Ver., concerning the flexure of the dis- 

 coidal vein, which he calls " sub-gcniculato," while my specimens are 

 almost " leniter flexo." D. puncticornis has hitherto only been re- 

 corded rarely from South Sweden by Zetterstedt, and " in Germany 

 "up to the Alps" by Loew. I found it tolerably abundant at 

 TJpware in July this year. 



D. MEDiicOB>'is, Ver. — I caught two females of this species at 

 Fawley on June 21st ; the darkened tips of the middle tibiae seem to 

 be a good distinctive character. The front coxa? of the male are some- 

 what denuded. 



D. LiXEAnrs, Mg. — I caught two males of this rare species at 

 Up ware in July this year. 



D. STEIGIPES, Sp. 11. 



?. JEneus, sub-nitidus, facie anrjusta candidisslind,f route C(trulco, ocii- 

 lorum ciJiis inferiori?jus albidia, ante7inis hrevihus luteis apice n'igro-fusca, 

 pedibiis sordide luteis, coxis anticis basl, posteriorlbus totis cinereis, trochantc- 

 rihus luteis, tarsis niffrofuseis, basi obscure luteis ; squamis pallide-cHiads ; 

 alis sub-hi/alinis, vend discoidali leyiissime flcxuusd, fere in apicem alee ex- 

 currente. Long. 2 lin. 



3 ■ Pedihus sordide luteis, feniorlbtis preesertim postiris intus strigd lon- 

 (jitudinali fused, tarsorvm anticornm articuUs subtus cxtrcmo apice cxalbidis ; 

 ^typopyejii lamellis flacidis, immarrjinatis,paHide ciliatis, apice obscuris, ciliis 

 nlgris, subtus (latere a ventre remoto) stylo longo ajiicc obscuro, j)ilis longis 

 nigris ad apieem duobus altera in medio gerentc, instruclis. Costa ubi vena 

 sub-costalis excijiit vix incrassata. 



It is difficult to locate this new species in the genus, as I can 

 scarcely say to what species it i.s allied ; taking tlie groups into which 

 the genus is commonly broken up, it evidently belongs to those species 

 with yellow femora, cilia of the lower orbit pale, antenna) chiefly yel- 



