THE GKOHXD BEETLES. 



17f> 



321 (1054). NOTHOPUS GROSSUS Say, Trans. Amer. Phil. Soc., IV, 1834, 430. 



ibid. II. 543. 



Robust, convex. Black, shining ; \ ^ 



antenna? and legs piceous. Thorax y \ 



nearly twice as wide as long, as 

 wide at base as elytra ; basal mar- 

 gin depressed, especially so in the 

 region of the hind angles, which are 

 rectangular; disk sparsely but rath- 

 er coarsely punctured near base and 

 apex. Elytral striae flue, not punc- 

 tured ; third, fifth and seventh in- 

 tervals each with five to eight dis- 

 tinct seta-bearing punctures. Length 

 14 mm.; width 7 mm. (Fig. 94.) 



Kiiown from Indiana by a 

 single specimen taken by Wol- 

 cott on the beach of Lake Michi- 

 gan, near Pine, Lake County. 

 July 25. Mr. \Volcott had pre- 

 viously taken a .specimen near 



Bloomington, Illinois. This is Fls 94 ^ tkopvlvoanit ^. u , antenua; fe , maxillli 

 the species usually known as N. ancl palpl; c> mandlble ; d ~ tarsus - (AfterLeConte.) 

 zabroides Lee. Say's des'-ription is. however, sufficient for deter- 

 mination and has priority. 



LXIII. CRATACANTHUS Dej. 1825. (Gr., "strong + spine.") 



One medium-sized, oblong, convex beetle represents this genus 

 in the United States. It occurs about gardens and the borders of 

 cultivated fields, and is often thrown out by spading and plowing. 

 It' is sometimes attracted by electric light. 



322 (1056). CRATACANTIIVS DUBH.-S Beauv., Ins. d'Arner., 1805, 108. 

 Oblong, convex. Piceous, glabrous; legs and antenna reddish-brown. 



Thorax one-half broader than long; sides broadly curved from apex to be- 

 hind middle, thence strongly sinuate to base, which is narrower than apex; 

 basal impressions short, smooth or with a few coarse punctures. Elytral 

 strire deep, not punctured; intervals slightly convex. Length s-10 mm. 



Throughout the State; frequent. May 14-September 23. 



LXIV. AGONODERUS Dej. 1825. CGr.. "without angle + neck.") 



Small brownish-yellow oblong beetles, having the mentum not 



toothed and the front tarsi alike in form in both sexes. Our species 



diminish in size in the order given in key. They occur beneath 



rubbish about gardens and cultivated fields. Several of them hi- 



[1223402] 



