37 2 CALIFORNIA ACADEMY OF SCIENCES. 



Two specimens are now before me, a male from Sierra 

 el Chinche, Baja California, and a female from Culiacan, 

 Sinaloa, Mex. 



Brenthus anchorago Fab. This name must be used in 

 place of B. lucanus Horn. 



Scolytidse. 



Coccotrypes (Dryoccetus) dactyliperda Fab. Atlantic 

 region. San Jose del Cabo. 



New Species and Other Studies. 



In the following pages three only of the new species 

 belong strictly to the present essay, by far the larger 

 number having been placed where they properly belong 

 in the " Revision of the CEdemeridae " which follows. 



Chlaenius nimrod n. sp. 



Bright green as in sericeus, shining on head and thorax, 

 elytra opaque, the entire margin beyond the eight stria? 

 and the apex more widely yellowish testaceous, epipleurae 

 pale. Antennae pale. Head smooth, with a few coarse 

 punctures above the eyes. Thorax slightly longer than 

 wide & , as wide as long $ , apex slightly narrower than base, 

 sides moderately arcuate anteriorly, feebly sinuate posteri- 

 orly, propleurae narrow, hind angles rectangular, not sharp, 

 base truncate ; disc moderately convex, basal impressions 

 deep, median line fine, surface smooth, with a few scat- 

 tered, large punctures. Elytra oblong-oval as in her- 

 baceus, but somewhat narrower, striae fine, impunctate, 

 deeper near the base, intervals slightly convex, alutace- 

 ous, a row of line punctures each side near the striae. 

 Body beneath piceous, shining. Prothoracic pleurae with 

 scattered coarse punctures. Metepisterna obsoletely 

 sparsely punctate. Abdomen smooth, with few scattered 



