FAMILY II. CAKABID-zE. 



KEY TO INDIANA SPECIES OF GROUP C. 



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. Stria? on front of head normal ; elytra distinctly striate, with at 

 least the first and second stria? entire ; stria? punctate. 

 (1. Thorax narrower at base than apex. 



e. Form depressed ; all the stria? of elytra entire. 



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



rower at base than apex; legs and base of antenna? dull 

 brownish-yellow. ST. cordatum. 



ff. Thorax subquadrate, but slightly narrower at base than 

 apex; legs dark reddish-brown. SS. intermedium. 



ee. Form more or less convex. 



g. Elytra with all the^tria? entire; head alutaceous. 



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

 with pale markings. S9. gractliforme. 



lih. 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; stria? scarcely less deep at 



tip. OBERTHtjRI. 



ii. Elytra greenish-bronzed with pale markings; stria? 



much finer at tip. . 90. fraternum. 



gg. Elytra with several of the stria? abbreviated behind. 



j. Hind angles of thorax distinctly carinate ; head very 

 finely or not at all alutaceous; 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. 



coxstrictum. 



dd. Thorax not perceptibly narrower at base than apex. 



7c. Thorax squarely truncate at base, the hind angles rectangu- 

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

 thau 5 mm. 92. variegatum. 



TcJc. 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. postfasciatum. 

 cc. Stria? on front of head double, often convergent. 

 I. Frontal stria? more or less oblique. 

 m. Frontal stria? but slightly oblique, the outer one interrupted: 

 size small, not over 4 mm. 

 n. Thorax cordate, the base pedunculate or subpedunculate. 

 o. Moderately convex; thorax scarcely wider than long: 

 elytra brownish-green with a subhumeral and a small 

 submarginal spot dull yellow. 94. pedicellatum. 



oo. Slightly depressed; thorax one-half or more wider thau 

 long: elytral spots <is in preceding but larger: punc- 

 tures of elvtra finer. 95. quadrimaculatum. 



