J]^52 FAMILY LIII. — CHEYSOJIELIDyE. 



both base and ai.e.x, yellow. Thorax nearly twice as wide as long finely 

 and si.arscly punctate. Elytra with somewhat irregular rows ot close-set 

 fine punctures. Length 4.5-5.5 mm. 



Liike County: scarce. May 5-Junc 24. Taken l.y sweeping 

 mai^h vcg-etatiun. 



XXXIV. L\mDOMKRA Chev. ls:U. (Gr., " forceps + femur.") 



The old genus, Dorijpliom 111., was discarded by Linell in his 

 paper, loc. cit., and the North American species were distributed 

 among this and the next genus, the two being separated only by the 

 characters given in the generic key. To Labidumcra, as character- 

 ized, belongs only a single species and a «'estern variety. 



*2135 (0785). Lakidomeua clivicollts Kirby, Faun. Bor. Amer., IV, 1837, 

 L'l;;. 



Oval, convex, robust. Dark blackish-bhic ; elytra 

 . range yellow with a large, black, cruciform common 

 SI Kit hi front of middle, each with a triangular spot 

 behhid the humerus, and a \'-shaped one near apex; 

 V these si)ots sometimes in part or all confluent to form 

 "*^ one or two bread transverse bands. Thorax three times 

 as wide as long, sparsely and finely punctate. Blytral 

 punctures fine, arranged in irregular double rows. 

 Length 8-12 mm. (Fig. 496.) 



Throughout the State; frequent on the foli- 

 age of the conunon millcweed, A.-idepi'is siiriaca h. January 5-Au- 

 gust 3. Hibernates beneath logs partly buried in sand, mullein 

 leaves, etc. ()m\ of the largesfand most handsome of our Chryso- 

 melids. 



XXXV. Leptinotaesa Stal. 1S.")S. (Gr., "slender + tarsi.") 



Two of the 12 species recognized ))>' Linell occur in Indiana, the 

 others being found in the AVesteru and Southwestern States. One 

 of the two is the comm(m injiu-ious "Colorado potato beetle" and 

 the other is very similar in appearance. 



KEY TO INDIANA SPECIKS OF LEPTINOTAESA. 



(/. Elytra with donblie rows of conlluent inmctures, the suture and five 

 uarrciw stripes on each bladv; epii)leura pale. 2i:"!fi. DEeE^^T.I^'EATA. 

 aa. Elytra with single rows of regular janictures; each with five narrow 

 black stripes, the third and fourth usually united at base and apex. 



2137. JUNCTA. 



