HARPALIISLE 255 



Form somewhat more elongate than in californicus, similarly shining 

 and very moderately convex, deep black throughout, the sides of the 

 prosternum, epipleura and legs blackish-piceous; head as in cali- 

 fornicus but smaller, the neck sometimes faintly rufescent medially; 

 eyes moderate and not very prominent; antennae much more slender 

 than in californicus but also shorter, less than half as long as the 

 body; prothorax nearly as in ardelio in its outline basally and in the 

 strongly though finely prominent basal angles, but much shorter 

 and more transverse, more than two-fifths wider than long, the stria 

 distinct and subentire, the fovese feebly impressed and rather strongly, 

 closely punctate, the punctures not extending far beyond the foveae; 

 elytra as in californicus in outline and striation but less exceeding 

 the prothorax in width, the latter being actually much broader as 

 well as more transverse than in that species. Length (cf 9 ) 2.2- 

 2.9 mm.; width 0.8-1.05 rnm. California (Lake Tahoe). Seven 

 examples, taken by the writer picipes n. sp. 



25 Head very much narrower than the prothorax; form narrow and 

 elongate, moderately convex, shining, deep black throughout when 

 mature but frequently with the prothorax and elytral suture pal- 

 lescent; legs flavo-testaceous; head about two-thirds as wide as the 

 prothorax, the eyes moderate in size and prominence; antennae 

 blackish, paler basally, more than half as long as the body and not 

 very slender (cf), or somewhat shorter and more slender (9); 

 prothorax a third wider than long, the sides rounded anteriorly, 

 converging and feebly arcuate basally, the basal angles obtuse, with 

 their apices minutely and moderately prominent as a rule; base 

 slightly narrower than the truncate apex; surface smooth, rather 

 convex, the fovese somewhat vague and feebly impressed, finely, 

 rather closely punctate, the stria distinct, subentire; elytra one-half 

 longer than wide to a little less, two-fifths wider than the prothorax, 

 the striae impressed; intervals distinctly convex suturally, flatter 

 externally and apically; hind tarsi slender though unusually short. 

 Length (cf 9) 2.4-2.7 mm.; width 0.75-0.9 mm. Rhode Island to 

 Iowa and Texas. Very abundant. [Acupalpus tantillus and dif- 

 ficilis Dej.] tantillus Dej. 



Head and general habitus very much as in tantillus but larger in size, 

 also similar to californicus but larger and with relatively smaller 

 anterior parts when compared with the elytra, shining, piceous- 

 black, the elytral suture feebly rufescent, the legs pale; head mod- 

 erate, the antennae s'ender, not quite half as long as the body, rather 

 dusky, clear testaceous basally; prothorax short, two-fifths wider 

 than long, the sides rounded anteriorly, oblique and evidently sin- 

 uate toward the basal angles, which are right, rather prominent and 

 sharply defined; base evidently narrower than the apex; stria dis- 

 tinct, subentire; foveae shallow, finely, not conspicuously punctate; 

 elytra three-fifths longer than wide, one-half wider than the pro- 

 thorax, the striae strong suturad; hind tarsi nearly three-fourths as 

 long as the tibiae, the basal joint as long as the next two and equal 



