170 ENTOMOLOGICAL SOCIETY 



Phronia tenebrosa, n. sp. 



Black, the halteres and legs yellow, the last two pairs of coxae, the hind 

 edge of the front ones, a streak on underside of each femur near the base, 

 the apices of the hind femora, and the tarsi except their bases, brown. 

 Third joint of antennae nearly twice as long as wide, the following joints 

 becoming successively shorter to the fourteenth which is as wide as long, 

 first joint slightly longer than wide, the second as wide as long; outer 

 ocelli contiguous to the eyes. Body grayish pruinose, the hairs and bris 

 tles yellowish. Lateral bristles of tibiae shorter than the diameter of the 

 tibiae. Wings hyaline, the apex from a short distance before apex of first 

 vein to tip of lower fork of fifth vein, and a cloud below the latter, dark 

 gray ; auxiliary vein attenuated toward its apex, becoming obsolete slightly 

 beyond middle of first basal cell, third vein strongly bowed toward the 

 first, ending in the costa at an acute angle only a short distance before 

 apex of costal vein, fourth vein forks at one-third of distance from the 

 small cross-vein to the forking of the fifth vein. Length 2.5 mm. 



San Mateo Co., Cal. A female specimen collected by Prof. 

 C. F. Baker. 



Type. No. 8031, U. S. National Museum. 



Ccelosia pygophora, n. sp. 



Black, the first two joints of the antennae, a large humeral spot, the 

 hypopygium, halteres, coxae, femora, tibiae and bases of tarsi, yellow. 

 First joint of antennae shorter than the second, wider than long, the 

 second as wide as long, the third three times as long as wide, the follow 

 ing joints increasing slightly in length to the eleventh, which is about six 

 times as long as wide, the remaining joints decreasing in length to the 

 last one, which is slightly shorter than the preceding joint ; two outer 

 ocelli separated from the eyes a distance equal to one-half of that between 

 these ocelli. Body thinly grayish pruinose, the hairs yellowish, the bris 

 tles on sides of thorax and the hairs on the hypopygium chiefly brown; 

 hypopygium very large, nearly globular, the two joints of each clasper 

 subequal in length, the second joint with a long, downwardly directed 

 process near the base of the under side ; a large, subtriangular piece in the 

 middle of the upper side of the hypopygium has its point of attachment 

 on a line with that of the claspers and reaches about to the middle of the 

 second joint of the latter. Lateral bristles of the tibiae not or scarcely 

 longer than the diameter of the latter. Wings grayish hyaline, auxiliary 

 vein terminating in costa slightly before base of third vein, no auxiliary 

 cross-vein, third vein strongly bowed forward toward its apex, costal vein 

 extending slightly over half way from apex of third to that of the fourth 

 vein, the latter forking midway between the small cross-vein and fork of 

 the fifth. Length 3 mm. 



San Mateo Co., Cal. Two male specimens collected by Prof. 

 C. F. Baker. 



Type. No. 8032, U. S. National Museum. 



