± xiCi c xctrjr i^imr: 



3HTNING BUGS. 829 



truncate or even somewhat emarginate in front ; seventh ventral 

 segment of male truncate, the eighth exposed. The tarsal claws of 

 all our Imowu Indiana species are armed with a long acute tooth, 

 causing them to appear broadly cleft. In another group, which 

 may yet be found to be represented in the State, the claws are 

 armed with a broad, nearly rectangular, basal tooth. Bight spe- 

 cies have been taken in the State. 



KEY TO INDIANA SPECIES Or PODABRUS. 



a. Eighth ventral segment of male triangular, flat, rounciecl at tip. 



6. Elyti-a distinctly dilated an the sides, their elevated lines strongly 

 marked ; antennae stouter. 

 ■ (■. Size larger, 11-18 mm.; thorax more than twice as wide as long. 



1574. TEIOOSTATUS. 



cc. Smaller, 7-8 mm. ; thorax not much wider than loflg, distinctly 

 narrowed in front. I.'m."). eugosuhs. 



&6. Elytra not or scarcely dilated on the sides, their elevated lines in- 

 distinct. 

 df. Elytra rather coarsely rugose. 



e. Thorax twice wider than long; color smoky brown or dull black. 



1576. BASILARIS. 



ee. Thorax but little wider than long; color, except sides of thorax, 

 shining black. 1577. teatbe. 



dd. Elytra finely rugose; thorax but little wider than long. 



/. Elytra black without pale margins; median impressed line of 

 thorax distinct diadema. 



ff. Margins and suture of elytra narrowly pale ; median line of tho- 

 rax feeble or wanting; second and third joints of antennte sub- 

 equal. 1578. MODESTUS. 

 Off. Eighth ventral of male oblong with sides parallel, obtusely rounded at 

 tip. 

 {/. Head suddenly narrowed behind the eyes, neck short; head and tho- 

 rax uniform reddish-yellow. 1579. tomentosds. 

 Off. Head much prolonged behind the eyes, neck long. 



h. Head sparsely punctured behind ; thorax feebly punctured. 



1580. peotensus. 

 Iih. Head and thorax lioth coarsely, the latter sparsely punctured. 



15S1. BEU>!.\IC0LLIS, 



1574 (4879). Podabrus teicostatus Say, Bost. Journ. Nat. Hist, I, 1835, 

 158 ; ibid. II, 635. 

 Elongate, robust. Black ; front of head and sides of tho- 

 rax reddish-j'ellow. Antennae about half the length of body, 

 ,1oints two to four increasing in length. Head and middle 

 of thorax densely ijuuctured, the sides of latter broadly flat- 

 tened and reflexed. Elytra very broadly dilated on middle 

 third, densely rugose, each with three strongly elevated lines. 

 Male elytra less dilated and antenna longer than in female. Fig. 323. x li 



r i. -.1 ir> , IT 000 ^ (After Kiiobel ) 



Length 11-13 mm. (Fig. 323.) 



Ijawrence and Perry counties; rare. May 31- June 17. 



