230 KANSAS UNIVERSITY QUARTERLY. 



face seem almost parallel, which is a decided novelty in this 

 genus. The genae are naked. 



The front, at its narrowest point, which is the ventral end, is 

 about one-fourth as wide as the head. From this point to the 

 vertex it widens slightly. 



The geno-vertical plate is thickly white pollinose. It bears 

 about eight, transfrontal bristles, of ^vhich only three are long 

 ones ; the others are very small. Laterad the transfrontals are 

 only a few minute hairs, no orbitals. There are two ascending 

 frontals. The bristles of the vertex are all present and of nor- 

 mal size and dirction. The vitta is black, brownish at its ven- 

 tral end, and bears no preocellar bristles. 



The palpi, are pale brownish color. 



The antennie are pale brownish yellow. The third joint 

 measures 0.8 mm., the second 0.2 mm. The arista is very long, 

 short plumose, its rachis yellowish at base. 



Most of the dorsum of the throax has a dark brown ground 

 color w^itli a gray pollinose coating, w^iich leaves the ground 

 color showing clearly in certain places, viz. : (1) On each 

 side, a trifle mesad the line of the dorso-centrals, a narrow 

 stripe, which is distinct cephalad the suture, but caudad the 

 suture becomes broader and less w^ell defined, and fades out 

 entirely before reaching the scutellum ; (2) on each side, 

 cephalad the suture, an irregularly triangular patch between 

 the presutural, posthumeral and dorso-central bristles ; (3) on 

 each side, caudad the suture, a patch between the dorso-centrals 

 and intra-alars. Now while most of the dorsum is as above de- 

 scribed, we find that each of the four corners of the dorsum — 

 i. e., each humerus and an adjacent area, and each postalar 

 callus and an adjacent area — is broadly pale brownish yellowy 

 and there is a rather broad stripe of the same color just dorsad 

 the notopleural suture and root of the wing. Moreover, all the 

 visible part of the cephalic surface of the throax, the prostigma 

 and most of the meso- and sterno-pleurse have the same color. 

 As I stated under Miisciria varicolor, the extent of these yellow 

 areas probably varies in different individuals. The cha?totaxy 

 of the thorax is shown in figure 16. 



The abdomen has a dark brown ground color with a white 

 pollinose coating, which, with a favorable incidence of light, 

 looks quite thick. There are no discal bristles except on seg- 



