320 The Ohio Journal of Science [Vol. XVIII, No. 8, 



segments dorsally pale, bristles and hair ]3ale; transverse rows of numer- 

 ous bristles before the incisures; female genitalia black, rather short, 

 compressed. 



Holotype female collected by W. M. Wheeler in Monterey 

 County, California, July 5, 1896. Property of the American 

 Museum of Natural History. Two other females with the 

 same data. 



This species is very distinct from all others known to me, 

 and for that reason I allow myself to describe it from the 

 female only. It seems to fall in the subgenus Antipalus, not 

 heretofore reported from America. 



Asilus vescus n. sp. 



Small black species with the sides of the thorax and posterior margins 

 of the abdominal segments gray pollinose. Male genitalia dark reddish 

 brown. Total length 10 mm. 



Mystax black above, white beneath; antennas and proboscis black, 

 beard white, thorax with two black stripes above very narrowly sepa- 

 rated with a gray line, sides of the thorax gray pollinose, scutellum 

 with some very fine gray hairs dorsally and two quite prominent black 

 bristles on the posterior margin; wings hyaline, slightly gray on the 

 posterior margin and at the apex; legs with femora wholly black, tibiae 

 and tarsi dark reddish. Abdomen black, venter and posterior margins 

 of the segments dorsally gray pollinose. Male genitalia dark reddish 

 brown, but not contrasting strongly in color with the abdominal seg- 

 ments, cut out at the apex above and produced backward and inward 

 at the apex below, so that a small, but distinct, open space may be seen 

 enclosed from dorsal view with a lens. Female genitalia shining black. 



Holotype male from Monterey County, California, collected 

 July 2, 189G, by W. M. Wheeler, property of the American 

 Museum of Natural History. Several other males and females 

 taken at the same time by the same collector. 



Asilus delicatulus n. sp. 



Body gray with pale bristles, wings hyaline, legs red, scutellum 

 distinctly hairy with a row of white bristles on the posterior margin. 

 Total length 1 1 mm. 



This is a very distinct species and suggests at once its sand- 

 inhabiting habits. It appears to be related to A. leucopogon, 

 although the female ovipositor does not have a circuit of spines 

 at the tip as in that species. The male has the last two abdomi- 

 nal segments and the genitalia bright yellowish red and the 

 female has the ovipositor of the same color. The delicate 



