25 



2. Callosities on the face blackish. 



3. Second dorsal segment of abdomen mostly yellow. 



4. Second abdominal segment with two short black stripes, 



the posterior margin never tinged with black 



sitavis , I .oe w . 



44. Second abdominal segment on the posterior margin 

 with a black band interrupted at the middle. 

 5. Second" abdominal segment at the middle with a 

 black bifid stripe, which extends from the anterior 



margin to the posterior margin 



sakhaline.nsts, Plesk. 



55. Second abdominal segment at the middle without 

 a bifid stripe or with a very short black bifid 



stripe in the male basalis, Shir. (n. sp.) 



33. Second dorsal segment of abdomen with orange yellow 

 lateral spots, all the segments with yellowish posterior 



margins nigricornis, Mats. 



22. Callosities yellowish sinensis, Walk. 



III. Abdomen entirely black and shining .japonica, Wied. 



I. Chrysops mlokosiewiczi, Bigot. (PI. I, fig. 3.) 



(Yosnji-Mekura-Abii) 



Ann. Soc. Entom. France (5), X, p. 146, 1880. 



Ricardo, Ann. Mag. Nat. Hist. (7), IX, p. 378, 1902 ; Record. Ind. 



Mus., vol. IV, p. 378, 191 1. 

 Chrysops striatus, v. d. Wulp, Notes Leyden Mus., VII, p. 79, 1885 ; 



Catal. Dipt. South Asia, p. 66, 1896. 



Rioardo, Ann. Mag. Nat. Hist. (7), IX, p. 379, 1902. 



m^mmwmmAftm^^m (* & m i&^m pi. vm, fig. 

 10, 1914. 



Chrysop siranensis, Bigot, Mem. Soc. Zool. France, V, p. 602, 1891. 



