COLEOPTERA OF SOUTHERN CALIFORNIA. 119 



been taken at Pasadena in May and June, on oak wood- 

 piles; it is reported by Mr. Coquillett as breeding 

 in oak. 



Acmaeodera. — This genus is very numerously repre- 

 sented in California, and of the thirty-two species re- 

 corded from the State all but three — mariposa from the 

 middle Sierras, and robusta and pubiventris from Owens 

 Valley — are found in our district. It is more than 

 likely that these three species will eventually be found 

 here. The various species are taken on flowers in May 

 and June, but their breeding habits are almost un- 

 known. According to Van Dyke, dohrnii breeds in 

 Ceanothus and gibbula in mesquite. The following 

 species have thus far been taken only in the Desert 

 region of the east and southeast: flavomarginata, lanata 

 (Los Angeles and San Bernardino counties), /!u^a (Death 

 Valley), variegata, quadrivittata (Mojave). Of the re- 

 maining species, ■/en,?/e.9i is not rare at various localities 

 in Los Angeles, Riverside, and San Bernardino coun- 

 ties; plagiaticauda, rare, Mariposa and Los Angeles 

 counties: jocosa, foot-hills of the southern Sierras, Po- 

 mona and Pasadena; coquilletti, " Los Angeles County" 

 (Coquillett); angelica, foot-hills of Sierras in Los An- 

 geles County and north to Lake County; hepburnii, 

 rather common west of the Sierras nearly throughout 

 the State; morbosa, Pomona and Pasadena, foot-hills, 

 rare; jiavostida, Riverside and San Diego County; acuta, 

 labyrinthica, and connexa are all common and widely 

 dispersed in and to the west of the Sierras, the last 

 named, however, is seldom found in our district except 

 at considerable altitudes in the Sierras; vandykei, scarce 

 in Los Angeles County, more frequent further north; 

 prursd, Los Angeles and San Bernardino counties; 

 dohrnii, rare in the southern Sierras (Los Angeles 



