HARPALIN^E 151 



prominent eyes and slender fuscous antennae, paler basally ; prothorax 

 nearly one-half wider than long, the sides parallel, evenly and very 

 distinctly arcuate and finely reflexed; apex feebly sinuate, nearly 

 as wide as the base, which is transverse medially, feebly arcuate at 

 each side, the angles slightly obtuse and broadly rounded; surface 

 nearly even, with a few very small punctures at the sides and lateral 

 parts of the base, the foveae very feebly impressed, not large and 

 rather vague, the stria extremely fine; elytra fully two-fifths longer 

 than wide, nearly a fifth wider than the prothorax, very obtuse at 

 apex, the obliquity of which is straight; striae nearly as in the pre- 

 ceding, the marginal and apical punctulation much closer and more 

 distinct; abdomen with very fine sparse punctulation; basal joint 

 of the hind tarsi a little shorter than the next three combined. Male 

 with the anterior tarsi feebly, the middle not at all dilated, both 

 squamulose beneath, the abdomen with the medial pubescent spots 

 described in riparius but all so much reduced in size as to be dis- 

 cernable only under very close observation and with considerable 

 optical enlargement. Length (cf 9 ) 4.5-5.8 mm.; width 1.7-2.2 

 mm. Texas (Austin) houstoni n. sp. 



Form distinctly stouter, the size a little larger, with bronze lustre, the 

 structure otherwise almost as in houstoni, except that the pronotal 

 foveae are almost completely obsolete, the finely reflexed lateral 

 margin testaceous and not virtually concolorous as it is in houstoni, 

 the sides of the base less arcuate and the apical angles more 

 broadly rounded; the elytra are relatively shorter, being only about 

 a third longer than wide, the abdomen and legs nearly similar, the 

 basal joint of the hind tarsi even more distinctly shorter than the 

 next three combined. Length (9) 5.6-6.2 mm.; width 1.9-2.4 

 mm. Louisiana (Alexandria). Three examples.. . .implicans n. sp. 



Form rather stout, nearly as in implicans, except that the prothorax is 

 shorter and that the shining upper surface has a dim piceo-aeneous 

 lustre; coloration otherwise nearly similar; head similarly with the 

 eyes very moderate in size, though rather prominent; prothorax 

 fully one-half wider than long, with parallel, evenly and moderately 

 rounded sides, the apex only very slightly sinuate, somewhat nar- 

 rower than the base, which is transverse and not evidently arcuate 

 at the sides, with the angles broadly rounded; surface very moderately 

 convex and almost even, the foveae extremely feeble and vague, 

 usually having a few small punctures; elytra less than one-half 

 longer than wide, evidently wider than the prothorax, obtuse at tip, 

 the feebly defined obliquity straight, the striae nearly as in the two 

 preceding but- with the scutellar rather more developed, the marginal 

 and apical punctulation very fine and rather indistinct; tarsi nearly 

 as in houstoni; abdomen (cf ) perfectly even, minutely punctulate 

 as usual but without trace of the small medial pubescent spots of the 

 pedicularius section and still observable in greatly reduced condition 

 in houstoni; basal joint of the hind tarsi about as long as the next 

 three combined. Length (cT 9 ) 5.2-6.0 mm.; width 1.8-2.5 mm. 

 Southern Arizona (Morrison) and also El Paso, Texas. Eight 

 examples aeneopiceus Csy. 



