394 platypezim;. 



3000 ft., 16. x. 1910 (Annandale) ; Peradeniya, Ceylon, vii. 1919 ; 

 Sadiya, Assam (type of orientalis). 



There can be no reasonable doubt of the synonymy of my 

 orientalis, and argyrogyna is also probably a synonym of glaucescens, 

 Walker, but of this latter there is probably no specimen in 

 existence, so de Meijere's name will presumably stand good. The 

 sole difference between his species and Walker's is the black dot 

 on the front of the head referred to by the older author, which 

 seems a small matter in a "piceous black" species. P. glaucescens 

 was described from Macassar, Celebes. As regards my obscura, it 

 may be ranked for the present as a variety without any trace 

 of shimmer on the thorax, and with the tarsi nearly uniformly 

 brownish in both sexes. 



