262 Memoirs on the Coleoptera 



Elytra wholly metallic green or blue in color 2 



Elytra black, each with one or two pale vittse 3 



2 — Body rather small in size, moderately convex, shining, the pronotum 

 dull; head black, with dark green reflection, the pro thorax flavo- 

 rufous; elytra dark greenish-blue; under surface and legs testa- 

 ceous, the meso- and metasterna, epipleura, tarsi and tibial tips 

 black; head subequal in width to the prothorax, with moderate 

 prominent eyes, the front nearly smooth, with some strigillation 

 near the eyes and with scattered minute punctules; antennae almost 

 deep black, the first three and one-third joints testaceous, distinctly 

 more than half as long as the body; prothorax a third wider than 

 long, the sides subcircularly rounded and very moderately reflexed 

 evenly to the basal lobe, excepting a very obtuse and feeble angula- 

 tion near the latter; basal lobe much more than half the maximum 

 width, somewhat punctured, the sulcus distinct, minutely angulate 

 at the middle; surface convex, finely, feebly rugulose, the stria fine, 

 extending to the apex; elytra between a third and fourth longer than 

 wide, gradually moderately inflated behind, much more than twice 

 as wide as the prothorax; striae very fine, feebly punctulate, almost 

 obliterated, the intervals flat, with some very minute sparse punctu- 

 lation. Length 4.2-4.6 mm.; width 2.1 mm. Texas (Brownsville 



and elsewhere) abdominalis Chd. 



Body nearly as in the preceding in outline and coloration, but somewhat 

 more elongate, with the elytra green; under surface and legs nearly 

 similar; head only slightly though evidently narrower than the 

 prothorax, with the eyes not quite so large and somewhat less promi- 

 nent, the tempora more strongly rounded, the front nearly as in the 

 preceding, the antennae similar, except that the third joint is in 

 great part blackish; prothorax shorter and broader, three-fifths 

 wider than long, similarly rounded and evenly, moderately reflexed 

 at the sides, but with the basal angulation more pronounced and at a 

 greater distance from the basal lobe, which is but little more than 

 half the maximum width; surface less convex, impunctate, the 

 sulcus finer; stria similar; elytra nearly similar in outline but with 

 even more obsolete striation and only barely more than twice as 

 wide as the prothorax. Length 5.0 mm.; width 2.15 mm. Illinois 



(Cairo) convictor n. sp. 



3 — Head and elytra black, the prothorax above and beneath testaceous, 

 each elytron with a slightly oblique flavate vitta, extending from the 

 middle of the base nearly to the apex at inner third; under surface 

 and legs black, the abdomen rufous in posterior half or less, the 

 tibiae slightly pallid, dark at apex. Head shorter than wide, four- 

 fifths as wide as the prothorax, sparsely and unevenly punctulate, 

 the eyes prominent, moderately large; antennae slender, black, the 

 first three joints more or less pale, the third generally blackish 

 distally; prothorax four-fifths wider than long to rather more, the 

 sides strongly rounded and very narrowly, subevenly reflexed to 

 the basal angles, which are sharp though very obtuse and at only 

 a short distance from the basal lobe, the latter three-fifths the 

 maximum width, the sulcus shallow; surface finely, sparsely rugulose 



