34 INSECTA SAUNDERSIANA. 



stump ; scales dark gray ; poisers tawny with yellow knobs. Length of 

 the body S lines ; of the wings 17 lines. 



Columbia. 



Tabanus adustus, Fem. 

 Piceus, thoracis lateribus ferrugineis, ahdomine iiigrn-piceo,luterihus hast 

 ferrugineis, segmentorum marginihus posticis futvis, antennis pedt- 

 busque nigrls, tibiis femigineis, alls subcinereis bast casta venar uni- 

 que marginibtis subfulvis. 



Body pitchy : head above covered with tawny bloom, excepting a 

 shining, reddish-brown, middle stripe ; fore part adorned with a golden 

 covering ; under side clothed with pale yellow hairs ; eyes dark bronze, 

 parted above by a moderately broad interval ; all the facets very small : 

 sucker black ; lancets ferruginous ; palpi dark tawny, pitchy above : 

 feelers black ; horn of the third joint long, slightly curved : chest clothed 

 with short tawny hairs, dark ferruginous on each side ; breast tinged with 

 gray, clothed with longer yellow hairs : abdomen pitchy-black, obconical, 

 much longer than the chest, ferruginous on each side at the base ; hind 

 borders of the segments tawny : legs black, clothed with short black hairs ; 

 shanks very dark ferruginous : wings pale gray, tawny at the base and be- 

 neath the fore borders, and with a slight tawny tinge along the borders of 

 the veins ; wing-ribs and veins ferruginous, the latter black towards the 

 lips ; a slight curve ivith no angle nor stump near the base of the tip cross- 

 vein ; scales dull dark tawny ; poisers ferruginous with tawny knobs. 

 Length of the body 9 lines ; of the wings 18 lines. 



Columbia. 



Tabanus simplex, Fem. 



Niger, thoracis lateribus abdomineque ferrugineis, hujus apice piceo, an- 

 tennis basi fulvis, pedibus ferrugineis, femoribus anlicis tarsisque 

 nigris, alis subcinereis, basi costa venarumque marginibus subfulvis. 



Body black : head pitchy above, tawny in front, clothed beneath with 

 whitish hairs: eyes bronze, parted by a rather broad interval on the crown ; 

 all the facets very small : sucker black ; lancets ferruginous ; palpi tawny : 

 first and second joints of the feelers tawny ; first joint black and pro- 

 jecting at the tip : sides of the chest ferruginous ; breast tinged with gray, 



