HARPALIN^E 75 



convex species, very variable in color, in the discal elytral puncture 

 and also varying in the number and disposition of the epistomal 

 setae in a most unusual manner.* The mentum has constantly a 

 moderate and broadly triangular tooth. The species may be 

 described as follows: 



Form oblong, parallel, convex, shining throughout (cf), the elytra alu- 

 taceous (9), black above and beneath when mature, the legs 

 blackish-piceous to paler, the antennae and trophi obscure testaceous; 

 upper surface varying from obscure viridi-aeneous to bright green 

 or cupreous, the anterior parts sometimes green with the elytra 

 cupreous; head moderate, the antennae extending behind the 

 thoracic base; prothorax one-half wider than long, the sides parallel, 

 broadly rounded anteriorly, less so basally, the base transverse, 

 strongly margined, feebly bisinuate and slightly wider than the 

 apex, the angles slightly obtuse and rounded; apex sinuate, with 

 broadly rounded angles; surface steeply sloping at the sides to the 

 finely reflexed edge, the latero-basal regions distinctly punctured, 

 the foveae large but feeble and vague, separated from the sides by a 

 convex surface, the median stria distinct; elytra parallel, about as 

 wide as the prothorax, two-thirds longer than wide, obtuse at apex, 

 the sinus nearly as in Group II, deep externally, where it is limited 

 by an obtuse dentiform projection; surface smooth, diffusedly 

 punctate on the flanks and toward tip, the striae moderately fine 

 and impressed, the scutellar long but seldom joining the first, the 

 discal puncture very inconstant; abdomen with fine suffused punc- 

 tures bearing short hairs and rather irregularly distributed, equal 

 among themselves and largely wanting toward the sides; hind tarsi 

 rather short, the first two joints equal, two to four decreasing, the 

 first much shorter than the fifth; metasternum laterally and its 

 episterna punctate as usual. Length (cf 9 ) 9.0-10.8 mm.; width 

 3.2-4.0 mm. Rhode Island to Lake Superior. [//. viridis Say, as- 

 similis Dej. and canonicus, convictor, cenescens and lustralis Csy.]. 



viridiaeneus Beauv. 



The peculiar form of the elytral sinus, reproducing that of the 

 preceding group and observable nowhere else in the genus, is 

 exactly similar to that of an example in my collection labeled 

 Harpalophonus hospes Sturm, from the European fauna; as there 

 are also many other points of resemblance, I do not hesitate to 

 place this species in that subgenus. 



* In days of early inexperience and with the idea that duplication of the epistomal 

 punctures might be important here as well as in the Anisodactylini, as stated by Horn 

 (Proc. Am. Phil. Soc., 1880, p. 162), I described four species from as many individuals 

 of this species (Cont. Descr. Syst. Col. N. A., I, p. n), a mistake which proved to be 

 most unfortunate in subsequent years from many points of view. 



