174 Journal New York Entomological Society. [Voi. xx. 



Each elytron with a prominent tubercle or elevation at the place of the 

 anterior black spot ; with ten rows of black punctures ; an irregular row of 

 large punctures between the third and fourth rows ; intervals with a few 

 scattered punctures ; the punctures behind the tubercle smaller, more numerous 

 and not arranged in such definite rows. Apices of elytra rounded not sinuate. 



Habitat. — Cal. (San Francisco, Pomona, Hills back of Oakland, 

 E. C. Van Dyke; San Diego, Leconte) ; New Mexico (Albuquerque). 



Type. — In the Museum of Comparative Zoology, Cambridge, Mass. 



Peltodytes simplex Leconte. 



Cnemidotus simplex Leconte. Ann. Lye. Nat. Hist., V, 1852, p. 201. 



General color rufous with black spots on elytra and pronotum. Length 

 3.5 mm. 



Head rufous ; punctate ; labrum not emarginate, anterior margin with a 

 row of setse, rounded at the sides ; antennae rufous. 



Thorax rufous ; pronotum with two basal black spots, punctate, the disc 

 sparsely so ; punctures of the same color as the pronotum. Prosternal ridge 

 flat, not grooved, slightly constricted in the region of the prothoracic legs, 

 widening anteriorly, steeply declivous in front. Posterior coxae punctate, 

 reaching the last abdominal segment. Last segment of abdomen triangular 

 in outline, impunctate. 



Elytra each with ten rows of black punctures ; an irregular interrupted 

 row of large punctures between the third and fourth rows ; punctures not so 

 irregularly placed on the apical half as in callosus Lee. ; intervals with but 

 few punctures ; apical margins sinuate-truncate. 



Habitat. — California (San Diego, Leconte; Guernville, Hills back 

 of Oakland, E. C. Van Dyke). 



Type. — In the Museum of Comparative Zoology, Cambridge, Mass. 



Peltodytes edentulus Leconte. 



Cnemidotus edentulus Leconte. New Species of N. A. Col., I, 1863, p. 21. 



General color pale yellow with black markings on head, thorax and elytra. 

 Length 3.5-4 mm. 



Head testaceous with a large crescent-shaped black spot on vertex be- 

 tween the eyes ; punctate except a small area on vertex in front of the black 

 spot ; labrum not emarginate, a row of small setae on anterior margin ; anten- 

 nae testaceous ; eyes nearly circular in outline. 



Pronotum with a pair of black basal spots ; punctate ; punctures on sides 

 and front smaller than on the base: disc sparsely punctate; punctures of same 

 color as pronotum. Prosternal ridge margined, punctate, sides constricted in 

 region of prothoracic legs, widening anteriorly, sharply declivous in front. 

 Legs pale yellow except femora of posterior legs which are brown or black 

 ringed with yellow at their distal ends. Posterior coxae reaching the last 

 segment of abdomen, punctate, not or only very slightly angulate on their 



