116 



large triangular areas formed by aboiit three meshes not in line; these 

 lateral areas are sparsely covered with plun.ose hairs. Wings with outer 

 half smoky, a darker area near the hind margin and several milky hyaline 

 streaks in the submarginal and third discoidal cells; the second subniar- 

 ginal cell large and sharply pentangular. 



First abdominal tergite rugoso-punetate to near the apex; the orenulate 

 ventral ridge strongly t oncave and with a large tooth near the apex 

 and another sharper one near the base. The area of the felt lines is 

 black. Segments ]I, III, IV and V with apical fringes of plumose hairs, 

 the first very dense, the last very thin. 



This was one of the coiiimonest species at Clareniont, California. 



Photopsis ingenuus n. f-p. 



Ijength 9 mm. In color almost the exact counterpart of P. ppdatvs ex- 

 cept paler, and with the whole thorax very much paler, almost yellowish. 



In structure this form differs from pedatiis in the following points: 

 The ocelli are about as near to each other as to the eyes. The mesopleural 

 transverse groove is scarcely evident, the depressed area is very sparsely 

 punctured, while but a small part of the longitudinal swollen portion is 

 sculptured and that indistinctly rugoso-punetate. 



Genus Chyphotes Blake. 



Synopsis of tlie New Species Described. 



A. — Wings with two submarginal cells; pleurae entirely and quite uni- 

 formly rugoso-punetate. 

 R. — Head with upper part piceous; first and second articles of flagellum 

 about equal; median meshes on metanotum regularly, sharply pen- 

 tangular piceiceps. 



BB. — Head with upper part concolorous; second article of flagellum 

 shorter than first, median meshes on metanotum above long 

 and narrow, at tlie sides larger and subpentangular 



californicus. 

 AA. — Wings with three subnarginal cells; portions of pro and meso- 

 pleurae smooth, without punctures. 

 B. — Length 7-8 mm.: head pieeous; second article of flagellum longer 

 than first; metanotum with very large, shallow, irregular reti- 

 culations similis. 



BB. — Length 10 mm.; head concolorous; first and second articles of 

 flagellum of equal length; reticulation of metanotum sharp 

 and deep, the meshes of medium size, and irregular because of 

 sinuosity of borders nevaden»is. 



4346 Chyphotes piceiceps n. sp. 



Length 11 mm. Ratlier light ferruginous, thickly clothed with long 

 ochraceous hair. The legs and antennae are testaceous. Head black above 

 antennae, the face below even darker ferruginous than the body. 



