379 



ish or orange yellow ; basal joint small, and narrow, shorter than the half 

 of the end joint, usually darker, covered with numerous long pale yellowish 

 brown or reddish brown pubescence intermixed with some conspicuous 

 black hairs ; second joint elongate ovate, about one-third as wide as its 

 length, with a rather pointed tip about the lower end and below that there 

 is an inconspicuous depression at the inner side, the inside nearly bare but 

 the outer side with numerous rather long black pubescence which becomes 

 considerably shorter about the tip. Antennae almost as in the female, but 

 the basal joint more thickened and the tip nearly as wide as the broadest 

 part of the third joint which has less out-curved lower margin of the basal 

 annulation. Eyes bare, and ifi death deep purplish black or reddish, 

 or yellowish, with various shimmer ; facets enlarged on all the central 

 portion of the combined eyes and in dead specimens yellowish or red- 

 dish or deep reddish purple there, while the smaller facets appear 

 blackish and occupy nearly the lower half of the eyes and extend in 

 a broad band up the back margin quite to the vertex, so that the 

 small facets occupy considerably the major portion of the eyes ; in 

 only three specimens from the southern part of Formosa the large facets 

 occupying quite two thirds of the surface, as in the description of 

 Ricardo, or in a single specimen from I iozan more than two-thirds ; 

 the comparison between the large and small facets may be not valid 

 character, but an indistinct dividing line (that is the facets gradually 

 grow up larger towards the centre) between large and small facets is 

 rather accessible character among many of specimens. 



Thorax shorter than in the female, usually roundish, much more 

 indistinctly striped ; pubescence longer and apparently much slender, 

 but the pale hairs less obvious, and on the upper base of the wings 

 and at the outer margin of the postalar calli there is brownish tuft 

 instead of yellowish one, and the numerous short yellow fringe on the 

 margin of the greyer scutellum not existing. 



Wings and halteres as in the female but the former with the 

 recurrent veinlet of the upper branch of the cubital fork not always 



