300 MR. WALKEe's CATALOaUE OF DIPTEROUS INSECTS 



shorter and a little narrower than the thorax. Legs rather short ; 

 tibiae and tarsi slender. Wings of moderate size ; veins straight ; 

 praebraehial vein beyond the discal transverse vein shghtly converging 

 towards the cubital vein. 



102. Cephaloconus tenebrosus, n. s. Fcem. Cinereo-niger, ob- 

 scurus, capite nitente lineis quinque flavis, antennis luteis, metathorace 

 testaceo, tibiis, tai'sis halteribusque pallide flavis, aUs nigris postice 

 cinereis. 



Female. Cinereous black, dull. Head shining black, with five yellow 

 lines — two above, one on each side, and one beneath ; front piceous, 

 slightly interlined with yellow. Antennse luteous. Metathorax tes- 

 taceous. Tibiae and tarsi pale yellow. Wings black, cinereous along 

 the hind border ; veins black ; discal transverse vein straight, nearly 

 upright, parted by half its length from the border, and by a little more 

 than twice its length from the praebraehial transverse vein ; halteres 

 pale yellow. Length of the body 2 lines; of the wings 3^ lines. 



Fara. HIPPOBOSCIDiE, Leach. 

 Gen. Ornithomtia, Olfers. 



103. Ornithomyia batchianica, n. s. Viridis, nigro-setosa, tho- 

 race abdomineque fuscis, guttis duabus humeralibus nigris, pedibus 

 robustis, tibiis nigro vittatis, tarsis nigris, alls subcinereis. 



Green, thickly beset with black bristles. Thorax brown ; humeral calli 

 large, green, each with a black dot. Abdomen brown. Legs robust ; 

 tibiae striped with black ; tarsi black. Wings slightly cinereous ; 

 veins black. Length of the body 4 lines ; of the wings 8 lines. 



Fam. NTCTEEIBID^, Leach. 



Gen. Ntcteribia, Latr. 



104. Nycteribia parilis, n. s. Pallide lutea. 

 Pale luteous. Length of the body \ hne. 



{Kaisau^ 



Fam. STEATIOMID^, Raliday. 



Gen. Obeapa, Walk. 



1. Obrapa perilampoides. Walk. See Vol. IIL p. 82. 



Fam. LEPTID^, Wesfw. 

 Gen. Leptis, Fahr. 



2. Leptis ferruginosa, Wied. See Vol. I. p. 118. 



