ART. 11 CHRYSOTOXINE SYEPHID-FLIES SHANNON 13 



CHRYSOTOXUM LADAKENSE, new species 



Female. — Antennal joints 1:1:3; face prominent, "moderately con- 

 caved; mesonotum with short, appressed, brownish pile; sciitellum 

 yellow; pteropleura yellowish pilose; legs yellow; arcuate abdomi- 

 nal bands rather broad, uniform in width, strongly curved and 

 joining side margins of the tergites; sides of abdomen rather strongly 

 flanged, of even contour and yellow beyond middle of third tergite ; 

 second sternite yellovv^ at apical corners; third sternite with com- 

 plete (narrowed at middle) yellow basal band, and j^eilow apical 

 corners; fourth with large yellow spots at anterior corners and 

 slnaller ones at apical corners ; fifth almost entirely black ; wing with 

 costal cloud extending only to tip of first vein. 



Length, 13 mm. ; wing, 12 mm. 



One specimen. 



Tyye locality. — Eupshu Ledak, 16,000 feet, Kashmir (July 22, 

 189T,V.L. Abbott). 



ry/;;e.— Female, Cat. No. 28312, U.S.N.M. 



CHRYSOTOXUM CHINENSE, new species 



Male. — Fairly large species; frons black, black pilose; antennal 

 joints 1 : 1.5 : 5 ; arista a little shorter than two basal joints ; face 

 rather prominent, moderately concave; cheeks, below eyes, entirely 

 black; mesonotum black pilose; peteropleura entirely black, with 

 black pile; sternopleura entirely black; bases of femora darkened, 

 remainder of legs yellow; abdomen strongly flanged, the side mar- 

 gins entirely yellow; arcuate bands joining lateral margins; second 

 sternite black, narrowly yellow on post margin; sternites 3 and 4 

 with broad basal yellow bands; genitalia typical. Length, 15 mm.; 

 w^ing, 12.5 mm. One specimen. 



Tyfe locality.— W&at of Chetu Pass near Tatsienlu, 13,000-15,000 

 feet, Szechuen, China (D. C. Graham). 



ry^?e.— Male, Cat. No. 28313, U.S.N.M. 



CHRYSOTOXUM NIGRIFACIES, new species 



FeTTidle. — A fairly large species; antennal joints 1:1.5:1.75; 

 arista black, about equal to combined length of joints 1 and 2 ; frons 

 entirely black, with two small poUinose spots; face prominent; 

 cheeks entirely black; mesonotum black pilose with scattered longer 

 black hairs; ptero- and sterno-pleurae entirely black, yellow pilose; 

 femora darkened basally ; margins of abdomen rather strongly 

 flanged, alternate black and yellow; arcuate bands narrow, of uni- 

 form width, joining the side margins; post margins of tergites very 

 narrowly 3^ellow ; last tergite twice as broad as long ; second sternite 

 entirely black, third with yellow band bordering on the anterior 

 margin, fourth with two yellow spots bordering on anterior margin. 



