THE CAXADIAX ENTOM()LOr.lST 



Fore coxae yellowish, other coxa' black; scape of anienn£e black. 



(Japan) japotiica, sp. n. 



(). Scuteliuin > ellow. (Kurope) lacustris Meig. 



Scutclkmi black 7 



7. Abdomen with the basal third of the second segment and the 



basal one-halt of the third segment reddish orange. 



(India) distincta Brim. 



Abdomen entirely black. (Europe) pahidosa Meig. 



8. Femora and tibiae bright orange-yellow, tarsi coal-black. 



(Abdomen orange-yellow, tergites with blackish borders to 



the segments; sternites orange-yellow.) 



(India) atrilarsis Bruii. 



Femora and tibia- more or less black or brown; tarsi not coal- 



l.lark 9 



. Pleura' silviT\--\vliite 10 



Pleur.c Hill wliiU'. TlKjrax ditferenl in colour in tile two se.ves; 



femora bright \ellow, hind pair black on the basal two-thirds 



(.■\re|)t the extreme base. (India) tibialis Brun. 



JO. Hind coxa? black except at tip; femora brown at tij); scutellum 



reddish; hypopygium large, reddish; first segment of the 



antennae reddish. (West. U.S.) lenis O. S. 



Coxae and femora yellow, the latter black at the tip; scutellum 



yellow; hypopygium small, mostly blackish: antennal scape 



black. (Europe) snilcHaris Meig. 



Ptychoplera japonica, sp. n. 



Wings banded; radial sector very short; antenna- of the male 

 very long, about as long as the body; abdomen with little reddish 

 or yellowish colour. , 



Male. — Length. .S..5 mm; wing, 8.9 mm; antenna-, 8.4 mm.; 

 fore leg, femur, 'lA mm.; libia, .^.4 mm.; tarsus, 8 mm.; middle leg, 

 femur; 5.4 mm.; tibia, 5.1 mm.; tarsus, 7 mm. Hind leg, femur, 0.1 

 mm.; tibia, 6.8 mm.; tarsus, 6.3 mm. 



Female. — Length, 11.5-13.5 mm.; wing, 10.7-10.8 mm. 

 Fore leg, femur, 5.6-5.8 mm.; tibia, 5.1-5.4 mm.; tarsus, 7 mm. 

 Middle leg, femur, 5.4 mm.; tibia, 5.4 mm; tarsus, 6.8 mm. Hind 

 leg, femur, ().2 mm.; tibia, 6.8 mm.; tarsus, 6.2 mm. 



