1928] Table of the North American Species of Medeterus 
37 
Thorax brown with gray pollen, which leaves narrow brown 
lines along the rows of bristles ; prothorax with two large whitish 
bristles above each fore coxa; scutellum with two pair of large 
bristles. Abdomen and hypopygium black with white hair; 
hypopygial appendages yellowish brown. 
Coxae black, anterior pair nearly bare with black bristles at 
tips. Femora black with apical third yellow; tibiae and tarsi 
yellow, the latter scarcely darker at tip; tibiae without bristles; 
joints of fore tarsi as 19-17-10-5-5; of middle pair as 29-21-13-5- 
6; those of posterior pair as 11-31-12-8-5. Calypters, their cilia 
and the halteres yellow. 
Wings grayish, veins yellow when seen against a dark back- 
ground; last section of fifth vein 14, cross-vein 10 fiftieths of a 
millimeter long; venation normal. 
Described from one male, taken at Galveston, Texas, in 
May, by F. J. Snow. 
Type in the Kansas University collection. 
Medeterus ciliata, new species. 
Male; length 3 mm. Face and front black, rather dull, 
with scarcely a trace of green color. Antennae wholly black, 
small; lower orbital cilia brownish yellow. 
Thorax and abdomen dark green, a little shining; pollen of 
thorax dark gray, almost bro\yn; scutellum with two pair of 
bristles; prothorax with two or three small black bristles above 
each fore coxa; hairs of the abdomen and legs black; hypopygium 
and its appendages black. 
Coxae, femora, tibiae and tarsi black, knees narrowly yellow; 
fore coxae with short black hair; fore and middle femora below 
and posterior pair on anterior surface with long brown hair, 
some of these hairs being as long as width of femora. Joints of 
fore tarsi as 15-21-14-5-7; of middle tarsi as 33-17-10-8-5; those 
of posterior pair as 20-30-14-9-8. Calypters yellow with a black 
edge and brown cilia; knobs of halteres yellow, their stems brown. 
Wings grayish, rather dark; last section of fifth vein 32, 
cross-vein 16 fiftieths of a millimeter long. 
