COLEOPTERA OF SOUTHERN CALIFORNIA. 39 



CARABID^. 



Omophron. — 0. dentatwm is quite common in many- 

 localities along the sandy or gravelly margins of streams, 

 Feb. -Aug. This species, together with Bembidium, 

 Tachys and other littoral forms, is easily secured by 

 "washing" the banks. 0. ovale Horn and concinnum, 

 solidum and gemma Csy. are northern. 



Trachypachys. — T. inermis and T. gibbsii occur both in 

 the northern Sierras and in the Coast Range. I have 

 taken the latter at Lake Tahoe in July, and Mr. Dag- 

 gett has found it at an elevation of 6,000 feet on the 

 Kern River. 



Cychrus. — G. obliquus, Los Angeles and San Diego; 

 not common: striatus, Santa Barbara, Pomona, Pasa- 

 dena; scarce along streams, where they conceal them- 

 selves under rocks and logs during the day: mimus, 

 somewhat more common than the last and occurs in 

 same situations; best obtained by trapping with fresh 

 meat: punctatiis, San Diego County, common at Fort 

 Tejon (Le Conte): subtilis, Los Angeles, very rare; not 

 seen alive by the writer; the example in my collection 

 is from Tulare County; it is also reported from Mariposa. 



The following species also occur in the State: angusti- 

 collis, northern; cordatus, cristatics, intei'ruptus, ventrico- 

 sus, striata pundatus, region about San Francisco; ore- 

 ophilus, middle SieYTas ; fuchsianus, northern; dissolutits, 

 "Cal." In a recent review of the subgenus Brennus, 

 Casey has added the following names: basalis, duplica- 

 tus, incipiens, decipiens, symnietricus , gentilis, strictus, 

 convergens, sculptipennis , porcatus, sinuntus, politus, cor- 

 pulenius, compositiis, longipes, gravidus, and catenidatus. 

 The last two are said to be from Southern California. 



