1919] Hine: Genus Erax 147 



four and five shows this arrangement somewhat, but the hairs are 

 short; hypopygium clothed mostly with white hair, enlarged at apical 

 half until it is nearly twice as wide as the seventh abdominal segment. 



Female abdomen with each segment white pollinose at sides and 

 apex, otherwise black above, oviduct black, scarcely five millimeters 

 in length, equivalent to the last three abdominal segments. 



Twenty specimens received from F. Grinnel, Jr., and taken 

 in Los Angeles County, California. A very distinct species 

 on account of the male hypopygium which appears as if inflated 

 and is nearly twice as wide as the seventh abdominal segment. 

 Males and females from Los Angeles, Kern and San Bernardino 

 counties, California, Coquillet Collection. 



Erax nemoralis Hine. 



A dark colored species with yellowish mystax and fumose wings. 

 Femora, tarsi and apices of the tibiae black, bases of tibiae reddish- 

 brown. Length, male, about 25 millimeters; female, to the tip of the 

 oviduct, 24 to 27 millimeters. Face and front covered with yellowish 

 dust, mystax and beard pale yellow, occipito-orbital and ocellar bristles 

 black, as are most all of the hairs and bristles of the front, palpi black, 

 furnished with many black hairs which often are intermixed with pale 

 yellow ones. Prothorax mostly clothed with pale hairs, remainder of 

 thorax with many black hairs and bristles, but these often are reduced 

 by the presence of greater or less numbers of pale ones; mid-dorsal 

 stripe dark and well marked, abbreviated behind and divided anteriorly, 

 on either side the markings are in the form of ill-defined spots caused 

 by the difference in intensity of the rust-colored dust which gives the 

 thorax its peculiar color; legs black, except the bases of the tibiae, which 

 are reddish-brown, clothed with black bristles and pale hairs of different 

 lengths, the shorter ones recumbent, some of the segments inwardly, 

 more especially the metatarsi and front tibia, clothed with golden 

 recumbent pile. 



In the male abdominal segments one, two and base of three dark, 

 largely clothed with black hair, apex of three and all of four, with the 

 exception of a small black triangle on each anteriorly, white with long 

 white hair parted in the middle and directed outward, five and six 

 silver white with very short hair, remainder of abdomen black, with 

 black hair, however, in some specimens part of seven is whitish and 

 there may be a few pale hairs on the hypopygium. Figure 5 L 



In the female the segments of the abdomen are gray on the sides 

 and hind margin, otherwise black above, but the latter color is not well 

 defined, especially if viewed with a lense; oviduct about six millimeters 

 in length, equivalent to the last four abdominal segments. 



Several specimens of both sexes procured in a brushy 

 woodland at New Roads, Louisiana, July 15, 1905. The 

 specimens were captured while resting near or on the ground. 



