OP PHILADELPniA. 243 



on the middle, lateral edge with a few hairs : scutel nearly as 

 long as the thorax, punctures dilated, tip acute : hcinelytra 

 reddish-brown, punctures approximate, membranaceous tip whit« : 

 feet pale reddish-brown : anterior thighs with an oblique, robust, 

 linear, cmarginate process near the middle beneath, and a small, 

 robust spine near the tip ; tibiaj with prominent rigid spines on 

 the exterior edge : intermediate thighs mutic, tibiae armed with 

 [317] moveable spines: posterior thighs with a slightly flexuose 

 spine near the tip beneath, and two or three small tubercles at 

 tip ; tibiaa armed with a few moveable spines : postpectus 

 blackish. 



Length three-twentieths of an inch. 



Found near Engineer Cantonment, common. 



[Belongs to Amnestus Dallas. — Uhler.] 



COREUS Fabr. 

 1. C. ALTERNATUS. — Fuscous ; thighs spinous beneath ; mar- 

 gin of the abdomen black, with five white lineolar spots ; head 

 mutic. 



Inhabits Missouri Territory. 



# Body deep blackish-brown : eyes rufous, a moveable black 

 pupil : stemmata sanguineous : antennae blacki.sh, robust, two 

 terminal joints rufous, equal : rostellum pale, tip black : thorax 

 punctured, gradually elevated behind, attenuated before, anterior 

 termination as wide as the base of the head, anterior lateral edge 



' slightly dentate, posterior angles rounded : scutel of the male 

 tinged with rufous : hemelytra tinged with rufous, punctured : 

 feet black : tarsi rufous : thighs, a double series of hardly pro- 

 minent, robust spines beneath, of which the two opposite termi- 

 nal ones are much more prominent, distinct, and acute : abdumen, 

 margin black, alternating, with live, oblique, white lines : tergum, 

 disk sanguineous : male, posterior thighs much dilated, very ro- 

 biist, slightly tuberculated above, terminal spines not more pro- 

 minent than the [318] others, a large prominent spine on the 

 inferior middle : posterior tibiae dentate towards the tip, refrac- 

 ted in the middle, and with a robust, prominent acute spine on 

 the angle. 



Length of the male more than four-fifths of an inch ; female 

 nearly three quarters. 

 1825.] 



