82 CALIFORNIA ACADEMY OF SCIENCES. 



diflfereiice; in fact, the three species here named are 

 separated by characters of very doubtful significance. 



Olibrus. — 0. wickkami, sp. nov., Southern California 

 (Casey); many specimens collected in San Diego County 

 by Dunn. 



Acylomus — A. nebidosus, taken at Yuma, in March 



(Daggett). 



Eustilbus. — E. apicalis, widely distributed and rather 

 common; I have beaten it in some numbers from a very 

 tall dried grass at Pasadena, in February: obtusus and 

 nanuluff both occurred plentifully about the roots of 

 grass in a marshy spot near Pomona, in January; notab- 

 ilis occurred sparingly in the same situation; aquatilis, 

 described from San Jose. 



CORYLOPHID^. 



Sacium. — S. amabile, found under bark of sycamores, 

 sometimes in large numbers. I took on one occasion 

 over seven hundred examples from beneath the bark of 

 a fallen sycamore in the Ojai Valley, early in March: 

 decolor, rare, Pomona; scitulura, described from Yuma 

 (Le Conte). 



Sericoderus. — S.Jiavidus is found in debris near water, 

 Riverside, Pomona, etc. 



Orthoperus. — Two apparently undescribed species 

 have been taken; one of these was found plentifully 

 about grass roots, in moist situations, in winter; of 

 the other there is but a single example from the Ojai 

 Valley. 



.^nigmaticum. — ^E. calif ornicivm, not rare, Santa Bar- 

 bara, Ventura, San Diego; found by beating. 



