214 r.i i.LETix ;;i, united states national museum. 



Criorhina (Cyaorhina) nigra, ii. sp. 



Habitat. — Xew Hamiisliiie ! 



9 . Lengtli, 7'"'". Lower part of the front, antenna}, and face, reddish 

 yellow ; front above, black ; cheeks shining, black ; dorsum of thorax 

 black, shiniii.i;', with a bronze reflection ; pile short and not abundant, 

 yellow. Abdomen wholly l:)lack, shininfj^, nearly bare ; pile on the sides 

 in front rather abundant and long:, light yellow. Legs l)lack ; knees, 

 tip of tibiic and of tarsal joints, luteous. Wings lightly infuscated; 

 base yellow. 



One specimen. White ^Mountains (National Museum, Professor Riley's 

 collection). This species is closely allied, evidently, with G. armillata; 

 but will be readily distinguished by the black legs. 



Criorhina (Cynorhina) analis. (Plate IX, fi<;. '^.) 



Milehid anolin Macqiiart, Dij)!. Esot.. ii, 2, 79 ; tab. 1.5, fig. 2. 

 Criorhhia analis Ostcn Sackeii, Cat. Dipt., 136; Williston, Proc. Am. Phil. Soc, 

 XX, ;530. 



Habitat. — Eastern States ! 



5,9. Length, 9 to 12""". Face light reddish yellow, the sides 

 lightly dusted with white, nearly perpendicular below the prominent 

 antennal process, gently convex on the middle ; cheeks black, or with a 

 blackish stripe. Antennae of the same color as the face, the first two 

 joints withshoit black i)ile above, third joint large, ronndiMl. Front in 

 female nearly of the same color, shining below, dusted and with short 

 yellowish pile above; on the vertex or upper third blackish; frontal tri- 

 angle shining, of the same color as face. Occiput black, dusted with 

 white near the orbits. Eyes of male contiguous lor a short distance. 

 Thorax shining, greenish black, with moderately abundant light-colored 

 l)ile ; humeri and pleurte dusted with whitish and with more whitish 

 pile. Abdomen bluish black, shining, with short black i)ile, on the sides 

 of the second segment, longer, whitish ; the black encroaches more 

 or less on the fourth segment, usually forming a more or less triangular 

 dilatation; remainder of the abdomen consi)icuously orange-yellow, with 

 the same colored pile. JiCgs chiefly black, with black ami light yellow 

 pile; tip of femora, the base and end of the front and middle tibiie, and 

 the narrow base and abrupt end of hind tibiae, and all the tarsi, except 

 the last two joints, light yellow; the front and middle tibi;!} more 

 brownish in the middle. Wings hyaline, a little yellowish in front. 



Numerous specimens. 



Criorhina (Cynorhina) humeralis. (Plate IX, tigs. 4, 4«.) 



(,'riorhina /i«m«r«//s Williston, Proc. Am. Phil. Soc, xx, 330. 



Habitat. — Washington Territory, California ! 



S ,9 . Length, 10 to 11'""'. Face light yellow, with whitish dust oh 

 the sides, shining in the middle; cheeks blackish. AntenniDeraore red- 

 dish yellow, third joint orbicular. Frontal triangle, and the front in 

 female on the lower part, colored like the face, upper half of front black; 

 pile yellowish, short. Thorax shining black, pile yellowish; humeri 



