114 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



yellow wing veins and is closely related, but has the abdomen mainly 

 reddish. 



Material examined: Japan: K. Miyushi, 1 female, USNM (arranged 

 as opimus, no type label, slightly grease stained). Fukien: Kuliang, 

 1925, H. A. Jaynes, 1 female, USNM. 



Conops (Asiconops) rufomaculatiis Krober 



Conops rufomaculatiis Krober, Arch. Naturg., vol. 81, Abt. A, Heft 11, p. 44, 1915. 



The specimen examined has the dorsum of the thorax black, except 

 for the humeri, sides, and scutellum. The first antennal segment is 

 dark yellow, although the species was described as having the antenna 

 black, third segment dark red brown. 



I do not find any significant differences between this species and 

 descriptions of aureomaculatus (=pieli). 



Material examined: Formosa: Kagi, 1 female cotype, Krober col- 

 lection No. 24283, USNM. 



Conops (Asiconops) szechwanensis, new species 



Female: Length 13 mm. Front dark reddish yellow, more yellowish 

 on the vertex. Indistinct rufous frontofacial mark. Face and 

 grooves yellow, gold pollinose except for antennal prominence. 

 Blackish at base of facial keel. Posterior orbit yellow pollinose. 

 Occiput dark yellow, blackish centrally. Antenna black, dark red- 

 dish black on third segment. First segment four times as long as 

 wide. Second segment less than twice as long as first. Third seg- 

 ment nearly as long as first. Process of second segment of arista 

 small. Proboscis black, yellowish on apical half, about 1% times 

 length of head. 



Thorax black, faintly yellowish pollinose more distinct medially 

 to the humeri, on the metanotum, and on the metapleura. No definite 

 pleural stripe. Humeri and apical margin of scutellum rufous. 

 Coxae black, yellowish white pollinose. Trochanters black. Femora 

 mainly black, partly rufous. Posterior femur rufous only at narrow base 

 and apical ventral third. Tibiae rufous. Tarsi and tips of claws black, 

 remainder of claws and pulvilli yellow. Wings dark yellowish hyaline 

 with darker pattern between first vein and third vein and vena spuria, 

 and along the fifth vein. Wing pattern yellowish at base, blackish 

 apically. Halteres bright yellow, dark reddish brown at base. 



Abdomen mainly black, reddish on posterior margin of second to 

 fifth segments, sides of third and sixth segments, and most of the 

 seventh segment. Theca black, as long as wide. Genitalia black. 



Male: Length 14 mm. Similar to the female. Rufous frontofacial 

 mark more distinct. Process on second segment of arista longer. 

 Gold pollen on second segment of abdomen more extensive laterally. 



