42 FAMILY II. — CARABIM. 



Horn —"Synopsis of the Species of Cyehms Inhabiting Boreal 

 America," in Trans. Amer. Ent. Soc, VII. 1879, 168-185. 



j/ or7L __Bull. Brook. Ent. Soc, I. 1879, 79-82. 



About 30 species of Cyehms are known from the United States. 

 Of these but five have so far been taken in Indiana, though two 

 others perhaps occur. 



KEY TO INDIANA SPECIES OF CYC H EES. 



„ Smaller, not over 15 mm. ; front tarsi of male broadly dilated those 

 ~ of female not dilated: maxilla- Hidden beneath the broad cheeks: 

 legs stout. 



D Hind angles of thorax very obtuse; length 12-14 mm. 

 ' c Thoracic punctures very tew. limited to the basal impressions; 



elvtral striae interrupted only at apex. 21. stenostomus var. 

 cc Thorax with numerous punctures between and in the basal im- 

 pressions- elvtral striae interrupted behind the middle. 



L ' 22. LECONTEI. 



U Hind angles of thorax rectangular; elvtral stria, interrupted on 

 sides and apex ; length 11-12 mm. canadensis. 

 aa. Larger, 18-28 mm; front tarsi of male but narrowly dilated; maxilhe 

 exposed ; le2;s slender. 

 a. Thorax nearly as wide as elytra, the sides much elevated, the hind 



angles prolonged backward, 

 e. Smaller, length less than 20 mm. 23- elevatis. 



ee Larger, length more than 25 mm. 24 - unicolob. 



cM. Thorax much narrower than elytra, moderately reflexed. the hind 

 angles not prolonged backward. 

 f Form robust ; margins of thorax rather wide, distinctly reflexed. 



VIDUTJS. 



ff Form slender ; margins of thorax very narrow, not reflexed. 



" ' 25. ANDREW SII VAR. 



21 (82) Cychres stenostomus Indiana Leng, MS. 



Oval, slender. Black: elytra violaceous, their margins bluish. Thorax 

 broader than long, sides enrved. strongly converging on basal halt ; bind 

 ang es obtusely rounded : dish smooth, the basa, impressions mear. deep, 

 with very few punctures. Elytral intervals slightly interrupted at sides, 

 more distinctly on apical fourth, but not tuberculate. Length 11-12 mm. 



Marion Posey, Crawford and Jennings counties; scarce. April 

 4-September 20. Mr. Chas. W. Leng, of New York City, who has 

 recently made" a special study of North American Cyehms, states 

 that this is a distinct variety of denmtomm Web., winch differs 

 from that species by the usually "total absence of the transverse 

 basal impression of the thorax. » He has given it the varietal name 

 indiance. 



