June 1899.] Casey: On American CocciNELLiDiE, 141 



Var. C — Similar in form, punctuation and sexual characters to heinorrhous, the 

 upper surface entirely black with feeble ?eneous lustre, the sides of the pro- 

 notum and apex of the elytra appearing veiy faintly red in a strong light in 

 areas similar in position and extent to those of heiiiorrJiotis, the pubescence 

 rather finer and less conspicuous ; legs almost black throughout. Length 



2.2 mm. ; width 1.6 mm. Texas (Columbus) subaeneus, var. nov. 



II — Red area of the elytra extending forward to about the middle, its bounding line 

 somewhat feebly defined ; body oval, shining, black, the abdomen black through- 

 out ; legs pale, with the femora infuscate ; prothorax but little more than twice 

 as wide as long, the sides almost continuous, evenly and moderately arcuate and 

 strongly convergent ; punctures fine and equal throughout, very sparse and but 

 slightly more close-set toward the sides, the latter broadly and indefinitely pale ; 

 elytra finely but strongly and closely punctured. Length 2.25 mm. ; width 1. 5 



mm. Wyoming postpinctuf , sp. nov. 



Red area of the elytra not extending much beyond apical third ; species much 



smaller 12 



12 — Red area sharply defined ; elytra oval, finely but distinctly and closely punc- 

 tate 13 



Red area not well defined, its boundaries nubilate ; elytra more coarsely and sparsely 



punctate, gradually narrowed behind from near the humeri 15 



13 — Pronotum rufous, with a parabolic median black area extending from the base 

 almost to the apex, two and one-half times as wide as long, the sides rather 

 strongly convergent, feebly and evenly arcuate and almost continuous ; elytra 

 closely punctured, the red area not extending further at the sides than at the su- 

 ture, ending, along the median line of each, slightly beyond apical third ; legs 

 and abdomen red, the latter black toward base, the male having a transverse- 

 fovea in the apical margin of the fifth segment, the first not modified in the 

 middle and punctured throughout. Length 1. 75 mm. ; width 1. 25 mm. Texas 



(Columbus) texanus, sp. nov. 



Pronotum black, rufous at the sides or apical angles 14 



14 — More broadly oval, the pale area at the sides of the pronotum abruptly defined 

 and not extending to the basal angles ; pale area of the elytra extending to api- 

 cal third, its most anterior point at outer third ; abdomen black, with the last 

 three segments pale ; legs pale throughout ; male sexual characters as in texamts, 

 the fifth segment less truncate, with the fovea smaller. Length 1.7 mm.; width 



I.I mm. Kansas rubricauda, sp nov. 



Xtxy narrowly oval and more pointed behind, the lateral pale area of the pronotum 

 more extended and indefinitely limited internally ; pale area of the elytra nearly 

 similar in form to that of rzibricauda but smaller, not extending quite to apical 

 third. Length 1. 7 mm.; width l.o mm. Pennsylvania (near Philadelphia). 



chromopyga, sp. nov. 

 15 — Small and very narrowly suboval, shining, black, the sides of the pronotum ab- 

 ruptly but very narrowly pale, the pale area scarcely extending to the basal 

 angles ; prothorax distinctly narrower than the elytra, the sides not continuous, 

 moderately convergent and moderately though evenly arcuate, the punctures very 

 fine and somewhat close-set toward the sides ; elytra rather prominently rounded 

 at the humeri, the pubescence fine and rather sparse , the pale apex extending 



