38 INSECTA SAUNDERSIANA. 



sides of the eyes with the exception of a narrow band along the hind 

 horder : sucker ferruginous, black towards the tip ; palpi tawny, and 

 clothed with tawny hairs : feelers bright tawny ; first joint yellow, clothed 

 with yellow hairs ; second clothed with black hairs ; third pitchy at the tip, 

 its horn acute, very short : chest thickly clothed with bright tawny hairs : 

 breast tawny, with a hoary tinge : abdomen tawny, slightly obconical, fer- 

 fuginous towards the tip, very much longer than the chest ; under side 

 yellow with a tawny tip : legs tawny, clothed with short tawny hairs ; feet 

 pitchy towards the tips ; claws black ; foot-cushions yellow : wings brown, 

 darkest at the base, gray along the hind border for half the length from the 

 base, colourless at the tips, adorned with a large tawny spot which extends 

 from the fore border to the disk ; wing-ribs tawny ; veins black, pai'tly fer- 

 ruginous ; angle of the tip cross-vein strongly marked, slightly obtuse, sending 

 forth a rather long stump ; scales brown ; poisers tawny. 



Fem. Head pale tawny in front, hoary, and clothed with white hairs 

 beneath : eyes black, parted above by a rather broad interval ; all the 

 facets very small : sucker black ; lancets pale ferruginous ; palpi yellow 

 with black tips, longer than those of the male : feelers tawny, black to- 

 wards the tips, darker, shorter and more curved than those of the male ; 

 they are also wider at the base, and the horn is larger : chest tawny, thinly 

 clothed with pale tawny hairs ; breast with a hoary tinge, partly clothed 

 with white hairs : hind borders of abdominal segments yellow ; under side 

 tawny, with a hoary tinge : legs tawny, clothed with short tawny hairs ; 

 feet and fore-shanks ferruginous ; fore-feet black : wings brown, gray at 

 the tips and along the whole length of the hind border ; spot much smaller 

 and less distinct than that of the male, and more gray than tawny ; stump 

 of the tip cross-vein shorter in one wing than in the other of the specimen 

 described. 



Length of the body 6 lines ; of the wings 12 lines. 



South America. 



Tabanus subsenex, Mas. 



Piceus, capite cano, thoracis laterihus ferrugineis, ahdomine rufo-fusco 

 vittis tribus fulvis ornato, antennis ferrugineis basi fulvis apice nigris, 

 pedibus fulvis fcrrugineo nigroque variis, alls cinereis basi et ad cos- 

 tam fulvis. 



Head hoary and clothed with white hairs in front and beneath: eyes 

 dark red, not divided into two regions, but the facets above are of moderate 



