70 CALIFORNIA ACADEMY OF SCIENCES. 



everywhere from the sea-level to moderate altitudes, 

 both east and west of the mountains: formosus, not 

 common, Pomona and Pasadena: eltgantulus, usually 

 not plentiful, but at times found in numbers, Pasa- 

 dena and Pomona. All the species are found only in 

 the vicinity of water. The following occur in middle 

 California: senilis, infanus, and semipunctatus the lat- 

 ter now identified with Bisnius procerulus Grav. 



Cafius. The species of this genus are confined to the 

 seacoast, and are often found in great numbers in or 

 beneath decaying seaweed, or other littoral rubbish. 

 C. canescens is our most abundant species, but seniinitens, 

 lithocharinus, and luteipennis often occur nearly as plen- 

 tifully: decipiens is said to occur rather commonly at 

 San Diego: sulcicollis and opacus are rather rare. All 

 the species, except setiiinitens and decipiens, have been 

 reported from one or another of the islands. 



Xantholinus. X. cephalus, not rare in the Sierras, 

 under bark: picipennis, common in fields and pastures 

 beneath stones, cow-droppings, etc.: dimidiatus, "San 

 Bernardino, Mojave Desert," Pomona, May; in decaying 

 yucca; rare: obscurus, not rare in damp situations near 

 Pomona, September to February: nanus, San Diego; 

 not seen by the writer: pusillus, not frequent, Riverside 

 and Pomona. 



Leptacinus. L. brunnescens, common in most locali- 

 ties under any object upon the ground, especially from 

 November to May: pallidulus, one specimen, Fort Yurna 

 (Le Conte). There are three undescribed species from 

 Southern California in my collection, of which one, at 

 least, is not rare. L. grandiceps was described from San 

 Francisco and parcus from San Jose; 1 have taken the 

 latter at Sacramento. 



