— 350 — 



brown; ceWisl M> nairow, m-cu ncar llie fork of 17; aluloiniDal ler|;il(;s 

 orange-yellow wilh Iwo broad, biown sublalcral sliipes. 



Femak. — LengUi, ih mm.; wing, i3 mm. 



Frontal prolongation cl' liead liglil giey al)ov(', brown laterally; nasus 

 and palpi brown. Anlennic dark brown, tbe llageliar segments subcylin- ' 

 drical, ihe basai cnlargemenls inconspicuous. Head obscure grey wilh 

 a very indislinct médian brown line. 



Mesonolal priesculum grey with threc brown slripes, tlie médian one 

 entire or nearly so; remainder of mesonolum grey, the postnotum iighter. 

 Pleura clear lighl grey, tlie florso-pleural membranes obscure yellow. 

 Haltères brown, ihe knobs dark brown. Legs wilh the coxœ light grey; 

 trochanters brown ; femora obscure yellow% the tips broadly infuscated ; 

 tibise brown , the tips gradually infuscaled ; tarsi dark brow n. Wings wilh 

 a' greyishtinge, the costal région indistinctly darkened; stigma light 

 brown ; cord fainlly but distinctly seamed w ith brown , very évident along 

 the basai deflection of Cu\ ; obliteralive aroa exlendiug from before the 

 stigma across cell isl M-2 înlo the base of cell M/,; ihe ai-ea behind vein Cu 

 lighl browii; V( ius dark brown. Venation : Rs long, arcuated at base: 

 R^2+i about cqual to the dislal section o{ Rr, cell ist Mo narrow, the ends 

 parallel; pétiole of cell M\ subequal to m; m-cu long and conspicuous, 

 immedialely beyoïid ihe fork of M. 



Abdominal tergites orange-yellow wilh Iwo very broad, dark brown 

 siiblaleral slripes, thèse much broader llian the dorsomedian stripe en- 

 closed; latéral margins about one-half as broad as the sublaleial bi-own 

 slripes; sterniles clay-coloied , more plumbeous toward the lip of abdomen. 

 Ovipositor wilh ihe tergal valves long, slender, divergent apically, the tips 

 feebly expanded; sternal valves much shorler, very oompressed, the tips 

 obtuse. 



Habitai. — Mongolia. 



Holotype : 9, Massif montagneux entre les vallées de la Fola et de 

 rOrkhon. altitude i'î5o meters, June 1909 (Dr. du Chazaud). Mission 

 de Lacoste. 



Type in the Collection 0' the Paris Muséum. 



