232 MR. WALKETl's CATALOGUE OF DIPTEEOTTS INSECTS 



tips ; wings cinereous, blackish along the costa, with two blackish 

 costal spots, and with two exterior blackish bands, of which the first 

 is abbreviated hindward, and the second is apical ; veins black, yellow 

 at the base ; halteres reddish, with black tips. Length of the body 

 5 lines ; of the wings 8 lines. 



Pam. STRATIOMID^, Haliday. 



Geu. Pttlocera, Wied. 



11. Ptilocera quadridentata, fFiec?. See vol. i. p. 7- 



Gen. Stratiomts, Geoffr. 



12. Stratiomys bifascia, n. s. Mas. Nigra, antennis basi flaves- 

 centibus, thoracis toniento anrato, abdominis margine fasciis duabus 

 ventre pedibusque flavescentibns, alis limpidis, halteribus albidis. 



Male. Black; 1st and 2nd joints of the antennae yellowish, shorter 

 together than the flagellum, which ends in a short bent style ; thorax 

 with gilded tomentum ; abdomen shining — border, underside, and two 

 bauds yellowish ; legs yellowish ; wings limpid ; veins and halteres 

 whitish. Length of the body 3 lines ; of the wings 6 lines. 



Gen. Clitellarta, Meigen. 



13. Clitellaria obesa, n. s. Mas. Cserulescenti-nigra, crassa, an- 

 tennis rufesceutibus lanceolatis, thorace fasciis sex obliquis, abdominis 

 fasciis duabus apiceque argenteo pubescentibus, genubus tarsisque 

 ferrugineis, alis nigricantibus, halteribus albis. 



Male. Bluish black, very thick ; antemiBe reddish, lanceolate, ending 

 in a short blackish style, as long together as the breadth of the head ; 

 thorax on each side with three oblique silvery pubescent bands ; scu- 

 tellum with silvery pubescence, which also forms two bands on the 

 abdomen, and covers the tip of the same ; legs black ; knees and tarsi 

 ferruginous; wings blackish, cinereous along the hind border and at 

 the tips ; veins black ; halteres white. Length of the body 4 lines ; 

 of the vnngs 7 lines. 



Gen. Saegus, Fabr. 



14. Sargus longipes, n. s. Mas. Cupreo-purpureus, capite antice 

 subtusque albido, antennis testaceis, abdomine basi albido, pedibus 

 longis albidis, tibiis posticis nigris, tarsis posticis niveis, alis cinereis, 

 halteribus albis. 



Male. Cupreous purple ; head whitish in ft'ont and beneath ; antennae 

 testaceous ; thorax with a whitish callus along each side ; abdomen 

 whitish at the base ; legs long, whitish ; tips of the tarsi and hind 

 tibiffi black ; hind tarsi pure white, black at the base ; wings cinereous ; 

 veins black ; halteres white. Length of the body 5^ lines ; of the 

 wings 10 lines. 



