74 FAMILY II. CARABID.^E. 



KEY TO INDIANA SPECIES OF GROUP C. 



(i. Eyes large or moderately large, convex ; outer lobe of maxilla- with 



the two joints distinct. 

 b. Dorsal punctures of elytra on the third interval only. 



c. Striae on front of head normal ; elytra distinctly striate, with at 



least the first and second striae entire ; striae punctate. 

 <J. Thorax narrower at base than apex. 



e. Form depressed ; all the striae of elytra entire. 



/. Thorax cordate, nearly twice as wide as long, much nar- 

 rower at base than apex ; legs and base of antennae dull 

 brownish-yellow. 87. CORDATUM. 



//. Thorax subquadrate, but slightly narrower at base than 

 apex ; legs dark reddish-brown. 88. INTERMEDIUM. 



ee. Form more or less convex. 



g. Elytra with all the striae entire ; head alutaceous. 



//. Larger, 5-6 mm. ; blackish or piceous, bronzed, the elytra 

 with pale markings. 89. GBACILIFORME. 



lilt. Smaller, 4-4.5 mm. 



i. Elytra dull brownish-yellow with two fuscous cross- 

 bands, one slightly behind the middle and another 

 between this and apex ; striae scarcely less deep at 



tip. OBERTHURI. 



//. Elytra greenish-bronzed with pale markings ; strife 

 much finer at tip. 90. FRATERNUM. 



gg. Elytra with several of the striae abbreviated behind. 



./. Hind angles of thorax distinctly carinate ; head very 

 finely or not at all slutacenus; size very small, not over 

 3.5 mm. 91. VERSICOLOR. 



././' Hind angles of thorax very finely carinate ; head dis- 

 tinctly alutaceous; bronzed, tinged with green, elytra 

 with dull yellow markings; size 4.2-5.5 mm. 



CONSTRICTIM. 

 fid. Thorax not perceptibly narrower at base than apex. 



/r. Thorax squarely truncate at base, the hind angles rectangu- 

 lar ; elytra black, with dull yellow markings ; length less 

 than 5 mm. 92. VARIEGATUM. 



/,/,. Thorax slightly obliquely truncate each side at base ; elytra 

 dull yellow with a bar behind the middle and two or three 

 spots blackish ; length 5 or more mm. 93. POSTFASCTATUM. 

 (<. Striae on front of head double, often convergent. 

 /. Frontal stria? more or less oblique. 

 ). Frontal striae but slightly oblique, the outer one interrupted; 



size small, -not over 4 mm. 



u. Thorax cordate, the base pedunculate or subperlunculate. 

 n. Moderately convex : thorax scarcely wider than long : 

 elytra brownish-green with a subhumeral and a small 

 submarginal spot dull yellow. 94. PEDICELLATUM. 



no. Slightly depressed : thorax one-half or more wider than 

 long; elytral spots AS, In preceding but larger; punc- 

 tures of elytra finer, 95. QUAPRIMACUIATUM. 



