X 



UNIVERSITY ) 



COLEOPTERA OF SOUTHERN CALIFORNIA. 245 



58. Malachius acutipennis, sp. nov. 



Moderately slender; front margin of labrum and epistoma, and under 

 side of two basal joints of antennae, yellow; head black, prothorax entirely 

 reddish yellow, or with a small median black spot extending from base to 

 middle; elytra black with reddish bronze lustre, sutural angles reddish 

 yellow. Antennae strongly serrate and reaching the middle of the elytra 

 in the male, a little shorter and much less strongly serrate in the female. 

 Head and prothorax polished, impunctate; prothorax transversely oval. 

 Elytra nearly parallel, feebly scabrous and punctulate, appendiculate, the 

 sutural angle spiniform in the male; wider behind, the sutural angle 

 broadly rounded in the female. Legs and lower surface, except prothorax, 

 black, without well defined metallic lustre; hind tibiae pale in the male. 



Length, 4-5 mm. 



Specimens taken at Pomona. 



The form of the elytra and the appendix in the male 

 is not very different from that in M. spinipennis, to 

 which this species is evidently related; the color of the 

 elytra, however, is bluish in M. spinipennis, the pro- 

 thorax is broadly black at middle from base to apex, and 

 the male antennae are pectinate. 



59. Malachius directus, sp. nov. 



Not very slender; greenish black; prothorax with sides broadly yellow; 

 apex of first, and entire second joint of antennae, yellow on the under side. 

 Head and prothorax polished, subimpunctate; elytra scabrous, less shin- 

 ing. Antennae in the male reaching or slightly passing the middle of the 

 elytra, rather strongly pectinate from the fifth joint; the third joint trian- 

 gular, as wide as long; fourth with a shorter branch than those of the 

 following joints. In the female the antenna? scarcely pass the humeri, 

 and are moderately serrate, the widest joints a little longer than wide. 

 Prothorax transversely oval. Elytra appendiculate in the male, the ap- 

 pendix consisting merely of a single, somewhat crumpled plate, which is 

 but slightly inferior; the tip strongly rounded and more or less reflexed. 



Length, 3.5 mm. 



Found in the Sierras of Los Angeles and San Ber- 

 nardino counties. 



In the specimens which are to be regarded as types, 

 the elytra are not tipped with yellow; other specimens 



