COLEOPTERA OF SOUTHERN CALIFORNIA. 253 



67. Hemiptychus integer, sp. nov. 



Dark brown, moderately elongate, oval, a little more suddenly rounded 

 in front; sides of prothorax more convergent and less curved than usual. 

 Surface moderately shining, finely pubescent, the pubescence not con- 

 cealing the surface sculpture, which is fine, the coarser punctures present 

 as usual, but inconspicuous. Sides of elytra with two complete marginal 

 striae, and a third within these two, extending from the humerus to the 

 middle. Superior outline when viewed in profile not at all gibbous, but 

 equally curved before and behind. Ventral sutures arcuate anteriorly at 

 the middle. 



Length, 2.3-2.8 mm. 



Collected at Lake Tahoe. 



The entire lateral striae, with the inner accessory one, 

 are peculiar to this species. 



68. Hemiptychus luteotectus, sp. nov. 



Elongate-elliptical, rufocastaueous, densely clothed with short, recum- 

 bent luteous hair, which nearly conceals the surface sculpture; this how- 

 ever, when visible, is seen to be very fine, with the coarser punctures 

 sparse and finer than usual. The lateral striae of the elytra are two as 

 usual, and extend from the apex to a little in advance of the middle. In 

 well preserved specimens the vestiture is denser, in narrow lines on the 

 disk of the elytra, giving a feebly vittate appearance. The form as seen 

 from above is equally rounded at the extremities; when viewed in profile 

 it is a little more strongly arched in front. The length is four-fifths 

 greater than the width. 



Length, 2.9-4 mm. 



Taken at Riverside, Palm Springs and Yuma. 



69. Hemiptychus palliatus, sp. nov. 



Similar to the preceding, but distinctly smaller and stouter, being barely 

 one-half longer than wide, and more densely clothed with yellowish white 

 recumbent hair, which completely conceals the surface. The form when 

 viewed in profile is more strongly convex, with the declivity much longer 

 and more gradual posteriorly than in front. 



Length, 1.9-2 mm. 



Collected at Yuma. 



