142 TNSECTA SAUNDERSIAXA. 



AsiLus Gamaxus, Mas. 



Nigi'o-fuscus, thoracis viltis tribus lateralibus pectoreque cinereis, abdo- 

 viinis segmentorum marginibus posticisfulvo-canis, antennis pedibus- 

 que nigris, alii sublimpidis costa apice venarumque marginibus fuscis. 



Body black : head adorned in front witli a lawny covering, whitish 

 and clothed with white hairs behind and beneath, thickly beset behind 

 the eyes with black bristles ; crown brown, clothed with a few black hairs ; 

 face very convex, thickly beset with pale yellow bristles ; a very few black 

 bristles towards the feelers and on each side of the face and on the sides 

 of the peristoma : eyes bronzed ; fore part flat, composed of large facets : 

 sucker clothed at the tip with short tawny hairs ; palpi beset with long 

 black hairs : feelers black ; first and second joints beset with black bristles ; 

 second hardly more than half the length of the first ; third spindle-shaped, 

 longer than the first ; bristle as long as the third : chest dark brown, 

 clothed with a few black hairs and bristles, adorned with three gray 

 stripes, the middle one triple ; sides, hind part and breast gray, on a dark 

 brown ground : abdomen dark brotvn tvith a taivny tinge, linear, narrower 

 than the chest and much less than twice its length, clothed with black 

 and pale yellow hairs and bristles ; hind borders of the segments hoary, with 

 a tatcny tinge; sexual parts large, black, shining, clothed above with pale 

 yellow silky hairs, and on each side with a tuft of black bristles, beset be- 

 neath with black bristles : legs black, clothed with short black hairs, armed 

 with black spines ; thighs thinly clothed with hoaiy hairs, armed with two 

 or three white spines ; hind-shanks and feet adoimed with taivny down ; 

 fore-shanks and base of fore-feet fringed tvith long, pale yellow hairs; foot- 

 cushions tawny : tvings nearly colourless, brown along the fore border, 

 towards the tips, and along the greater part of the hind border ; wing-ribs 

 ferruginous ; veins black, ferruginous at the base ; poisers yellow. Length 

 of the body 6 lines ; of the wings 11 lines. 



South America. — Columbia. 



