72 INSECTA SAUNDERSIANA. 



interval ; all the facets very small : sucker and palpi short, tawny : feelers 

 tawny, small, tapering from the base to the tips ; third, fourth and fifth 

 joints pitchy : chest adorned with three slender yellowish white stripes : 

 abdomen obconical, longer than the chest ; hind borders of the segments 

 tawny : legs tawny, covered with white bloom, clothed with whitish hairs ; 

 tips of the claws black : wings white ; wing-ribs and veins pale tawny, the 

 latter darker towards the tips ; an almost right angle sending forth a long 

 stump near the base of the tip cross-vein ; scales whitish, with pale tawny 

 borders ; poisers yellow, with yellowish white knobs. Length of the body 

 4i lines ; of the wings 8 lines. 



South America. 



CHRYSOPS, Meigen. 



Chrvsops excitans, Fem. 



Nigra, capite fiilvescente, abdominis maculis tribus ventreq\ie fulvis, an- 

 tennis nigris basifulvis, pedibus nigris, tarsis posterioribus tibiisque 

 basi ferrttgineis, alis limpidis fusco vittatis et fasciatis. 



Body black : head adorned with a bright tawny covering which sur- 

 rounds some large black shining marks ; two of these are on the crown, 

 the first including the eyelets, the second in front of the feelers ; two on 

 the face, obclavate, united at the mouth ; one on each side of the peris- 

 toma : eyes black ; all the facets very small : sucker or lip black ; lancets 

 or labrum, tongue, mandibles and maxillae tawny ; palpi pitchy, ferrugi- 

 nous at the base: feelers black, nearly twice the length of the head, 

 curved upward towards the tips ; first, second and third joints tawny ; 

 first and second clothed with short black hairs : chest and breast clothed 

 with tawny hairs ; breast tinged with gray : abdomen slightly obconical, a 

 little broader and much longer than the chest ; a large tawny spot occupies 

 the sides of the first and second segments : a triangular tawny spot rests 

 on the hind border of the second segment, and is connected with the side 

 spots ; under side dark tawny ; fore borders of the segments pitchy ; a 

 large black spot at the base ; legs black, clothed with very short black 

 hairs ; thighs clothed with short tawny hairs ; shanks and four hinder feet 

 ferruginous towards the base ; foot-cushions dark tawny : wings colourless, 

 brown at the base, along three-fourths of the fore border, and beneath the 

 fore border on one-fourlh of the length and half of the breadth of the wing 



