H. C. FALL 453 



Head yellow with occipital spot and median line extending from it to middle 

 of front, black; punctuation coarse, uneven; eyes separated bj- about twice (d') 

 or three times ( 9) the length of the basal antennal joint. Antennae three- 

 fourths (cf) or one-half (9) the length of the body, outer joints narrowly 

 triangular, the tenth about two and one-half times as long as wide in the 

 male, outer joints more or less blackish. 



Prothorox rather small and strongly transverse, moderately arcuately nar- 

 rowed in front, punctuation rather coarse and close, a little sparser along the 

 side margins. 



Elytra confusedly punctured in basal half between the inner black vittae and 

 the suture, otherwise quite regularlj' striate; striae moderate^ impressed, the 

 submarginal one only shghtly sinuate behind the humerus, marginal interval 

 impunctate, shield wanting. 



Pygidium yellow with black base. Body beneath black, with last ventral 

 margined with yeUow. Legs yellow. 



Length 3 to 3.5 mm.; width l.o to 1.9 mm. 



Distribution. — Kansas: Onaga, tj-pe cf , (collected by Crevecour ?); Medora, 

 June 10; Sahna (Knaus); Ft. Scott, May 23 (Soltau— Xat. Mus. Coll.); 

 Douglas Co. and Wallace Co. (Snow). Dakota: (Wenzel Coll.). 



136. Pachybrachys vau new species 



Pale yello\v or testaceous, integuments polished, prothorax 

 ^vith a median V shaped mark and a vitta each side, the elytra 

 ^vith the suture and two discal stripes, black; the outer stripe 

 occupying the seventh and eighth interspaces. Front without 

 ocular lines, front claws of male not at all enlarged. Ave. length 

 3.25 mm. Texas and Colorado to Arizona. 



Head barely as wide as the thoracic ape.x, front verj- sparsely punctate, the 

 black marks small and sharply outlined. Eyes in the male separated by twice 

 the length of the basal antennal joint or slightly more, onlj' very little more 

 distant in the female. Antennae short, blackish in outer half, attaining only 

 the hind coxae in the male and still shorter in the female, tenth joint a httle 

 more than twice as long as wide. 



Prothorax moderately transverse, sides moderately arcuate and convergent, 

 punctuation sparse, closer in the black markings, side margins smooth; scutel- 

 lum black, except rarely. 



Elytra with a few confused punctures along the suture near tlu; base, other- 

 wise regularly striate, the striae rather lightly impressed, eighth scarcel}^ sin- 

 uate behind the humerus; 'marginal interspace impunctate, shield wanting, 

 vittae subequal in width, the outer one confined to the seventh and eighth 

 interspaces. 



Pygidium black with two yellow apical spots. Bodj' beneath black, last 

 ventral segment broadly jtIIow at sides, the preceding segments sometimes 

 narrowly so. Legs entirely pale yellow. 



Length 2.7.5 to 3.75 mm.; width 1.35 to 2 mm. 



TRAXS. .\M. ENT. SOC, XLI. 



