MB. WALKER ON DTPTEBA COLLECTED AT MAKESSAK. 169 



228. Drosophila LURiDA, n. s. Mas. Atra, capite piceo, arista plu- 

 mosa, abdomine lurido subpubescente, pedibus obscure fulvis, alis 

 lurido-ciaereis, punctis marginalibus nigris, vena transversa prajbra- 

 chiali nigro nebulosa. 



Male. Deep black ; head piceous ; antennae short, 3rd joint elongate- 

 conical, arista thinly plumose ; pectus piceous ; abdomen oval, luriil 

 red, minutely pubescent, not longer than the thorax ; legs dull tawny ; 

 wings lurid grey, blackish at the base, with black points at the tips of 

 the longitudinal veins ; veins yellowish ; discal transverse vein straight, 

 upright, with a black point at each end, parted by less than its length 

 from the border, and by about twice its length from the praebrachial 

 transverse, which is clouded with black. Length of the body 2 lines ; 

 of the wings 4 lines. 



229. Drosophila lateralis, n. s. Mas. Fulva, subtus testacea, 

 abdomine maculis lateralibus nigris, pedibus halteribusque testaceis, 

 alis cinereis. 



Male. Tawny, testaceous beneath ; antennae short, 3rd joint conical, 

 arista plmnose ; abdomen not longer than the thorax, with black spots 

 along each side ; legs and halteres testaceous ; wings grey ; veins 

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



Greu. DiscoMYZA, Meigen. 



230. DiscoMYZA OBSCURATA, u. s. F(£m. Cinereo-nigra, capite ab- 

 domineque nigris nitentibus, antennis obscure rufis, arista plumosa, 

 pectoris lateribus albido conspersis, alis cinei-eis fascia inforrai macu- 

 laque apicali nigricantibus, halteribus albis. 



Female. Cmereous black ; head black, shining ; antennae short, dark 

 red, 3rd joint conical, longer than the 2nd, arista thinly plu- 

 mose ; sides of the pectus with minute whitish speckles ; abdomen 

 elliptical, flat, black, shining, longer than the thorax ; legs black ; 

 wings grey, with an irregular blackish band which does not extend to 

 the hind border, and with a blackish apical spot ; veins black ; discal 

 transverse vein straight, oblique, parted by much less than its leno-th 

 from the border, and by very much more than its length from the 

 praebrachial transverse, which is clouded with black; halteres white. 

 Length of the body 2 lines j of the wings 3 lines. 



Gen. NoMBA, n. g. 



Mas et Fcem. Corpus latum, crassum. Frons lata. Antennce brevis- 

 simae ; articulus 3"^ subrotundus ; arista subpubescens. Thorax sub- 

 pubescens, quasi coriaceus ; scutellum parvum ; metathorax maximus, 

 abdomen alasque incumbentes obtegens. Pedes breves, robusti ; fe- 

 mora subincrassata ; tibiae arcuatae. ^?ffi parvae. 



Male and Female. Body broad, thick, compact. Head almost as broisd 

 as the thorax ; front broad, narrower than the epistoma ; face vertical. 



