84 POMONA JOURNAL OF ENTOMOLOGY 



postscutellum is broadly raised, and its apex not transverse, the sides of the 

 metanotum are rounded but not broadly, and the base of the first abdominal 

 segment is roughened. 



Pterochilus lutcicoUis sp. nov. 



Luteous, the front except for a small transverse spot over the antennae, 

 vertex, the hinder part of the head except for a broad line behind the eyes 

 narrowed above and below, mesonotum, the base and apex of scutellum and 

 a line down its middle, a line on the base of the metanotum gradually widened 

 to the middle and one down the middle dilated at the apex, a broad line on 

 the lower basal half of the propleurae, the lower part of mesopleurae, a broad 

 line on the upper two-thirds of the apex, mesosternum, the base of metapleurae 

 broadly above and gradually narrowed below, the extreme base of first abdom- 

 inal segment (from this a narrow line runs, uniting the basal line to an irreg- 

 ular large mark which becomes gradually widened to the middle, then slightly 

 narrowed to the apex which is transverse), an irregular ragged line on the base 

 of the second segment united by a narrow line to a broad transverse one, dis- 

 tinct laterally narrowed lines on the base of third and fourth segments, and 

 irregular tripartite lines on the basal three or four ventral segments, black. 

 Legs colored like the body, their bases irregularly marked with black, the tarsi 

 tinged with rufous. Wings hyaline, the anterior distinctly tinged with ful- 

 vous, the nervures and stigma fulvous. The antennal scape below, mandibles 

 except at the apex and a line on the lower side of the eye orbits, yellow. Fe- 

 male, length 14-20 mm. Ormsby county, Nevada, (Baker), small form; Clare- 

 mont, California, (Baker), large form. 



Densely covered with short pale fuscous pubescence, longest and densest 

 on the head, shorter and sparser on the abdomen. Clypeus clearly broader than 

 long, strongly but not closely punctured, gradually narrowed from the eyes to 

 the apex, which is rufous and transverse. Front, vertex and thorax closely 

 punctured, the mesopleurae with the punctures more widely separated, the 

 metanotum almost smooth, its sides broadly rounded, the metapleurae smooth. 

 Abdomen almost impunctate except on the penultimate segment, which is 

 weakly, and the last which is strongly, but not closely punctured. Tibial and 

 tarsal spines numerous, short thick and rufous. Base of the thorax transverse, 

 the edges slightly projecting. 



The smaller example from Nevada has the black color more extended all 

 over, the scutellum is black except for a lateral spot on the basal half, the 

 pleurae are for the greater part black (not for the greater part yellow as in 

 the larger specimen), the black marks on the basal two abdominal segments 

 are larger and irregular as in the type. 



Pterochilus flavobalteatiis sp. nov. 



Black, the clypeus, mandibles except at the apex, a broad line on the lower 



side of the eye incision, a small spot between the antennae, a broad line on the 



upper half of the outer orbits, a line on the pronotum broadly dilated on to the 



upper half of the pleurae, tegulae, two irregular spots on the scutellum, post- 



