16 PROCEEDIjS^GS op the NATIOjSTAL, museum vol.69 



median facial stripe present; antennae unusually short, the joints 

 1:1.25:4; the first two joints and basal half of the third yellowish 

 below; the arista yellow and distinctly longer than antenna; thorax 

 except mesonotum almost entirely yellow; legs including coxae and 

 trochanters yellow; abdomen very broad; arcuate abdominal bands 

 very broad, nearly bordering onto the anterior margins of second 

 and third tergites; entire margins of abdomen yellow with densely 

 set very short black stiff bristles; apical corners of tergites strongly 

 projecting; second and third tergites yellow with black hind mar- 

 gins and dark median stripe; genitalia typical. 



Length, 17.5 mm. ; wing, 17 mm. One male. 



Tyfe locality .—Shm Kai Si, Mount Omei, 4,400 feet, Szechuen, 

 China (D. C. Graham). 



Ty^e.— Male, Cat. No. 28319, U.S.N.M. 



CHRYSOTOXUM CAELESTE, new species 



Female. — ^A large robust species similar in size and dorsal ab- 

 dominal coloration to draco. The following characters indicate tlie 

 differences: Eyes pilose; frons black, basal antennal joints dark 

 brown, third blackish ; length equal to fore tarsus, relative length of 

 joints 1 : 1.25 : 3.5 ; arista yellowish, much longer than basal joints 

 combined; mesonotal pile brownish, dark posteriorly and on ab- 

 domen; pleural pile yellowish; pleura black with j^ellow spots on 

 meso — and sternopleurae ; dorsum of abdomen black at base, almost 

 entirely yellowish brown beyond; side margins alternate black and 

 yellowish brown; thickly beset with very short black hairs and 

 longer yellowish ones; apical corners of tergites strongly project- 

 ing, less so than in draco; margins of fifth tergite 3:1:1; sternites 

 2, 3, 4, and 5 black with yellow post margins; anterior margins of 

 wings brownish; length, 17 mm.; wing, 16 mm. One female. 



Type locality. — 9 miles southwest of Tatsienlu 8,500-13,000 feet, 

 Szechuen, China (D. C. Graham). 



Jy^e.— Female, Cat. No. 28320, U.S.N.M. 



CHRYSOTOXUM CAUTUM Harris 



CJirijsotoxum cauttim Harris, Expos. Engl. Ins., 1892, p. 60. 



Two males and one female, two of which bear Verrall's deter- 

 mination " sylvarum Mg." from Leigh, Essex, England. The third 

 specimen bears the label " C. 8 — maculatum^^'' authority unstated. 

 The male of this species is one of the few in this group which have 

 the genitalia greatly modified, the styles being very broadly U- 

 shaped. 



Two other males and one female from France (Herve-Bazin). 



