126 WALKEB 0T7 DTPTERA OT AETJ ISLANDS. 



stripe ; abdomen dull testaceous ; legs whitish ; tibiae and tarsi at the 

 tips and fore femora black ; wings greyish ; veins black, discal trans- 

 verse vein oblique, parted by more than its length from the border, 

 and by full twice its length from the praebrachial transverse ; halteres 

 whitish. Length of the body 2 lines ; of the wings 3 lines. 



161. OsciNis NOCTiLux, n. s. Mas. Atra; capite pallide flavo subtus 

 albo ; antennis luteis, arista nuda ; scutello, maculis duabus pecto- 

 ralibus abdominisque apice albis ; tibiis tarsisque intermediis testaceis ; 

 alis nigricantibus postice cinereis, halteribus niveis. 



Male. Black. Head pale yellow, black hindward, white beneath; an- 

 tennae pale luteous, third joint very short, arista bare ; scutellum 

 white ; pectus with a white spot on each side ; abdomen white at the 

 tip ; middle legs with testaceous tibiae and tarsi ; hind wings blackish, 

 cinereous hindward ; halteres snow-white. Length of the body I line ; 

 of the wings 1| line. 



Subfam. GtEOMTZIDes, Fallen. 

 Gren. Deosopiiila, Fal 



162. Drosophila? FiNiGUTTA, n. s. Mas. Fulva ; capite antice tes- 

 taceo, antennis testaceis, articulo tertio conico; abdomine maculis 

 quatuor apicalibus nigris, tarsis nigris ; alis cinereis venis nigris. 



Male. Tawny. Head testaceous in front ; antennae testaceous, third 

 joint conical ; abdomen with two black spots on each side at the tip ; 

 legs testaceous; tarsi black; wings grey; veins black, discal trans- 

 verse vein straight, parted by full half its length from the border and 

 by full twice its length from the praebrachial transverse ; halteres 

 testaceous. Length of the body 1^ line ; of the wings 3 lines. 



163. Drosophila? melanospila. Foem. Testacea; antennarum 

 articulo tertio conico, arista plumosa; thoracis disco abdominisque 

 guttis duabus apicalibus atris ; tarsis piceis ; alis subcinereis. 



Female. Testaceous. Vertex luteous ; third joint of the antennae 

 conical ; arista plumose ; disk of the thorax and a dot on each side 

 of the tip of the abdomen deep black ; tarsi piceous ; wings slightly 

 greyish ; veins black, discal transverse vein straight, parted by about 

 half its length from the border and by twice its length from the prae- 

 brachial transverse. Length of the body 1 line ; of the wings 2 lines. 



164. Drosophila? imparata. Foem. Pallide testacea; pedibus 

 pallidioribus ; alis subcinereis, venis pallidis. 



Female. Pale testaceous, with a few bristles. Legs paler than the 

 body ; wings slightly greyish ; veins pale, discal transverse vein 

 straight, parted by about twice its length from the border and by 

 more than twice its length from the praebrachial transverse. Length 

 of the body | line ; of the wings 1| line. 



