Uhler.J 104 [February 1, 



brown. Venter black, polished, minutely, closely punctured, mi- 

 nutely pubescent. Tip of costal margin with a black spot. 



Length, 5 millims. Humeral breadth, If millims. 



No. 146. Harris Collection. $. " Cambridge, Mass., April 20, 

 1837, under aboard." 



Belonochilus. Nov. Gen. 



Elongate, oval, flattened, pronotum and head together forming a 

 long triangle. Head very long, acutely narrowing to the tip ; the 

 tylus narrow, projecting prominently forwards. Ocelli placed on a 

 line with the back of the eyes and near them. Antennas about half 

 as long as the body, the apical joint subfusiform, much stouter than 

 the others, about equaling the third in length ; basal joint very short, 

 not reaching to the tip of head, contracted at base, the second as 

 long as the basal and third united. Bucculse narrow, tapering to a 

 point behind the middle of the throat, the rostral groove deep, nar- 

 rowing behind. Rostrum slender, reaching behind the middle of the 

 venter, the basal joint fully as long as the head, almost enclosed in 

 the groove, second joint a little longer than the first, third about 

 twice as long as the fourth, the fourth a little shorter than the first. 

 Prosternal groove broad, not carried as far as the collum, mesoster- 

 nal groove broad, well defined. Osteolar appendix auriculate, 

 grooved. Base of venter triangularly produced against the sternum ; 

 the median line sulcate to behind the middle. Anterior femora very 

 stout, armed with one large tooth. Membrane with five longitudinal 

 nervures, and at base with one long and one transverse cell. Very 

 closely related to Orsillus Dallas. 

 B. numenius. 



Lygceus numenius Say. Heteropt. p. 15. 9. 



No. 81. Harris Collection. $>. "September 1st, 1829. Penn. 

 Dr. Pickering." 



A very rare insect in Maryland; but of which I have examined 

 specimens from Ohio and Illinois. 



Fam. ARADID^. 

 Aradus Fab. 



A. robustus, n. sp. 



Fuscous, or rufo-fuscous, with close-set, short setas over most of 

 the surface. Form of A . quadrilineatus Say. Head broad, short, 



