!^22l ZdOLOGY. 



8. Conops. Antenncc varying in diiFerent species ; in some 



feathered, others, clavate, with a projecting bristle, fig. 



41, plate 3 ; tnouth with a projecting jointed j>ro&05cz,y. 



9. Asilus. Antennce filiform, of three articulations, figs. 



42, 43, plate 3 ; mouth furnished with a strait, horny, 

 two valved snout. 



These insects feed principally on the smaller kinds of dip- 

 terous, and lepidopterous insects. 



10. Bombylius. Antennce of two joints, fig. 44, plate 3; 

 mouth furnished with a very long strait, setaceous, 

 bivalve trunk, with horizontal valves, including setace- 

 ous piercers. 



11. Hippobosca. Horse-Fly. Antennce filiform; jnouth 

 with a two valved cylindrical 5no2</ ; body depressed; 

 feet armed with several claws. 



ORDER VII. 



A P TE RA, 



The various genera composing this order, are of such 

 varied forms, that no general characters can be affixed, ex- 

 cepting that none of the order possess wings. 



1. Lepisma. Mouth with two setaceous, and two capitated 

 feelers ; antennce setaceous ; body imbricated with 

 minute scales ; tail terminated with diverging setaceous 

 bristles ; legs six, formed for running. 



