H. C. FALL 405 



Prothorax widest and with sides rather strongly rounded at basal fourth in 

 the male, less rounded in the female, moderately narrowed in front, pimetua- 

 tion coarse, dense, sparser on the median hne anteriorly, yellow side margins 

 nearly smooth; the markings diffused nearly uniforndy over the entire disk 

 leaving only the side margins and the frequently indistinct anterior median line 

 and basal spots yellow. 



Elytra quite densely pimctate, confusedly so in liaso-sutural region, striae 

 one and two not very distinct, three and four distinct and with the interval 

 between them a little prominent throughout; five and six completely confused 

 except posteriorly, seven and eight more impressefl, the latter, at least, entire; 

 shield prominent, bright yellow; marginal interspace more or less punctate in 

 basal half or two-thirds; standard spots largely suffused, the two posterior 

 marginal ones, however, separated by u conspicuous yellow spot. 



Pygidium brown with oblique ai)ical yellow spots. 



Body beneath brownish fuscous, ventral apex sometimes paler. 



Legs reddish yellow, tips of thighs paler. 



Length 3 to 3.4 mm.; width 1.6 to L95 mm. 



DiHtrihniion. — California: Los Angeles Co., cf type (Xixn Dyke); Pasadena, 

 May 29: Mountains near Claremont (Baker); ^It. Pinos, Ventura Co., Jime 12 

 (Grinnell); Los Angeles Co. (Coquillett in Xat. Mus. Coll.); "Cal" (Am. Ent. 

 Soc. Coll.). 



S7. Pachybrachys quadratus new species 



Whitisli yellow mottled with black; prothorax rather ."^mall, 

 scarcely narrower at apex than base, .sides broadly arcuate, 

 widest behind the niidtUe, ])ut not or very little wider than the 

 head, which is obviously wider than the thorax at apex; front 

 without ocular lines; front claws of male distinctly enlarged. 

 Ave. length 2.75 mm. Southern California. 



Head hea\ily maculate with black or brownish black, the pale areas si)arsely 

 punctate; ej'es separated by about one and two-thirds times the length of the 

 basal antennal joint in the male and by nearly three times the length of the 

 basal joint in the female. Antennae fully reaching the hind coxae in the male, 

 about half as long as the body in the female, outer joints more or less dusky or 

 blackish . 



Prothorax moderately transverse, blackish markings variable but generally 

 broad, densely punctate, the light areas sparsely i)unctate, side margins smooth 

 or nearly so. 



Elytral striae moderately impres.s(>d. distinct laterally and i)<)steriorly, more 

 or less broken medially in front of the middle, th(> pimctm-es much confused 

 in the scutellar region; shield small; marginal intei-spaee with a very few punc- 

 tures anteriorly in the male, the punctures more numerous and extending 

 through the greater ptut of the lengtli in the female; outer standard spots dis- 

 tinct, the inner ones smaller and more diffuse. 



Pygidium bicolored, the dark area predominating. 



Legs pale with blackish spots at middle of femora and tibiae. 



TRAN.S. .VM. ENT. SOC, XLI. 



