CONOPID FLIES CAMRAS 119 



two distinct yellow ocelli. Face dark reddish yellow at anterior orbit 

 and in facial grooves. Posterior cheeks and median band in facial 

 grooves velvety black. Occiput dark 3 7 ellow with narrow velvety black 

 posterior orbit and stripes from sides of vertex to neck. Antenna 

 black, rufous on medioventral surface. First segment about two 

 times as long as wide. Second segment three times as long as first. 

 Third segment a little longer than first. Process on second segment of 

 arista small. Third segment of arista three times as long as first and 

 second combined. Proboscis as long as head, black, rufous basally. 



Thorax velvety black, reddish on apex of scutellum and parts of 

 pleura. Indistinct yellow pollen on thorax especially at metanotum, 

 metapleura, and forming a diffuse pleural stripe. Coxae black, partly 

 rufous on the anterior coxa. Anterior femur mainly rufous, a little 

 blackish ventrally. Middle femur rufous above, blackish below. 

 Posterior femur mainly blackish with a rufous longitudinal stripe, and 

 rufous at apical ventral third. Tibiae dark 3 T ellowish, blackish apically 

 on posterior tibia. Tarsi dark yellowish. Pilvilli and claws, except 

 black tips, yellow. Wings grayish yellow hyaline, more yellowish 

 basally between first and fourth vein, but no definite wing pattern. 

 Junction of subcostal and first vein slightly proximal to anterior cross- 

 vein. Calypters blackish. Halteres yellow, black at base. 



Abdomen dull black on first and third segments. Reddish and then 

 golden 3 T ellow on apical margin of second segment, apical half of third 

 segment, and almost all of fourth segment. Fifth and sixth segments 

 and genitalia entirely golden yellow. Narrow reddish distal margin on 

 first segment. 



Type: Holotype, male, USNM 64481, Yachow, Szechwan, Aug. 16, 

 1928, D. C. Graham. 



Related to nigrij)es, but very distinct by having the black areas 

 velvety, and the apical half of the abdomen mainly orange and gold 

 pollinose. 



Siniconops grandens, new species 



Male: Length 20.5 mm. Front and vertex yellow, slightly darker 

 near back of antennal prominence and anterior to vertex. Vertical 

 swelling and part of ocellar tubercle darker. Small velvety black 

 frontofacial mark. Face yellow, cheeks blackish. Junction of facial 

 and oral keel dark reddish. Posterior orbit and upper occiput yellow, 

 remainder of occiput black. Antenna black, partly reddish on third 

 antennal segment. First antennal segment two times as long as great- 

 est width. Second segment three times as long as first. Third segment 

 slightly longer than first. Process of second segment of arista is small 

 but distinct. Third aristal segment short, hardly longer than first and 

 second combined. Proboscis as long as head, black. 



