32 IXSECTA SAUNDERSTANA. 



feet pitchy ; claws black ; wings gray ; brands brown ; wing-ribs ferrugi- 

 nous ; veins black, ferruginous towards the base ; angle of the tip cross- 

 imn obtuse, sending forth a slump which is about Itvice the length of its 

 shorter side ; scales gray, with pitchy borders ; poisers pitchy. Length of 

 the body 6^ lines ; of the wings 1 1 lines. 



Columbia. 



Tabanus perplexus, Fem. 

 Niger, capite piceo, thoracis abdominisque basi lateribus rufis, antennis 

 rufis apice nigris, tibiis anterioribtis rufis apice nigris, alis ftilvis, 

 apice margineque postico cinereo-fuscis. 



Body black: head pitchy, covered with brownish tawny bloom, 

 clothed beneath with white hairs and black bristles : eyes brassy, large, 

 parted by a very narrow interval &n the crown: sucker black ; lancets pale 

 red : palpi tawny : feelers red ; first and second joints produced into short 

 horns, the first stout and blunt, the second slender and acute ; tip of the 

 third joint black, its horn curved dovmward and very long : sides of the 

 chest red : breast clothed with tawny hairs : abdomen shining, obconical, 

 longer than the chest, red on each side at the base : legs black ; fore- and 

 middle-shanks red, with black tips ; hind-shanlis fringed with short black 

 hairs ; foot-cushions tawny : wings dark tawny, which colour passes into 

 grayish-brown at the tips and along the hind border ; wing-ribs and veins 

 ferruginous ; veins pitchy towards the tips ; tip cross-vein forming a very 

 distinct, slightly obtuse angle near the base where there is no stump ; scales 

 dark tawny ; poisers pitchy, with ferruginous knobs. Length of the body 

 7 lines ; of the wings 22 lines. 



Columbia. 



Tabanus basi-rufus, Fem. 



Niger, capite rufo maculato subtus fulvo, scutelli margins postico abdo- 

 minisque basi rufis, antennis basi ferrugineis, pedibm rufis, alis 

 cinereis ad costam subferrugineis. 



Body black : head pitchy above, with a large red spot in front of the 

 crown, dark tawny, and thickly clothed with long pale yellow hairs in front 

 and beneath : eyes brassy, clothed with tawny hairs, parted by a mo- 

 derately broad interval on the crown, which is clothed with short black 



