H. C. FALL 369 



slightly inflated at apical third. Front claws of male much 

 enlarged. Ave. length 3.4 mm. Lower California. 



Head rather small, eyes not at all prominent, punctures sparse except in the 

 dark median line; eyes separated in the male by scarcely half the vertical width 

 of their upper lobes or by a little less than the length of the basal antennal 

 joint. Antennae slender, fully four-fifths as long as the body in the male, 

 tenth joint four times as long as wide. 



Prothorax large, strongly narrowed in front, scarcely narrower than the 

 elytra, sides subparallel or at least not distinctly incurved in ])asal third, the 

 lateral edge slightly wider and narrowly sub-explanate toward the hind angles, 

 distinctly visible from a vertical view point; basal lobe narrower and more 

 prominent than usual; surface dull and densely punctate, sparser in two dis- 

 integrated yellow basal spots and along the yellow median anterior line; side 

 margins smooth, yellow. 



Elytra minutely alutaceous but distinctly shining, punctuation confused 

 baso-suturaJly, striae impressed, the two lateral ones continuous, the others 

 for the most part broken or irregular except on the rear convexity; shield 

 irregularl}' rounded, convex, yellow; marginal interspace without punctures, 

 the eighth stria with sul^basal interruption; standard spots indefinite, the 

 surface more or less predominantly brown, with numerous small raised yellow 

 spots, either isolated, or forming parts of the convex interspaces. 



Pygidium brown with two large confluent apical yellow spots. Body be- 

 neath brown, last ventral largely yellow. Legs yellow with brown or fuscous 

 femoral and tibial rings or .shades. 



Length 3 to 3.75 mm.; width 1.65 to 2.1 mm. 



Distribution. — Lower California: San Felipe (type cf), and El Taste (Beyer). 



In size, color and sculpture, this species is nearly- identical 

 with turgidicoUis, but the latter may be distinguished by the less 

 approximate eyes and posteriorly inflated prothorax with sides 

 strongly incurved basally, the reflexed side margin normally 

 narrow. 



53. Pachybrachys turgidicoUis new species 



Black or fuscous and yellow maculate, the darker color pre- 

 dominating. Eyes separated by a distance distinctly less than, 

 in the male, or, in the female, subequal to the vertical width of 

 their upper lobes; front without ocular lines. Prothorax strongly 

 inflated behind the middle especiall.y in the male; elytral shield 

 large and conspicuous; front claws of male much enlarged. Ave. 

 length 3.75 mm. Western Texas. 



Head barely as wide as the thoracic apex, darker areas closely punctate, 

 yellow areas sparsely punctate or impunctate; eyes separated by only slightly 

 more than the length of the basal antennal joint in the male, and in the female 



TRANS. AM. ENT. SOC, XLI. 



