462 R. OSTEN SACKEN 



ring etc. — Untii this is proved however , the name Themara 

 may remain for it. 



Trypeta (Acanthoneura) polyxena n. sp. 9 . Wings brown, with 

 several hyahne spots ; apex with a well defined yellow segment. 

 Length : 7-8 mm. 



Head, including the antennae, brownish -yellow; frontal stripe 

 more reddish ; bristles black. Thorax brownish-yellow , with 

 some faintly-marked brownish stripes ; metanotum black on the 

 sides ; abdomen black , two basal segments yellow , the second 

 with a black Ijand in the middle. Halteres and legs brownish- 

 yellow. Wings brown with the following white spots : a triangle 



on the costa at the end of tlie 

 fi]*st vein ; a small round ' spot 

 about tlie middle of the first post, 

 c. ; a larger , oval spot in the 

 discal cell, almost under the small 



Acantkoneu/'u 2iolyxeHa. 



crossvein; a triangle on the hind 



margin , in the second post. c. ; 

 a suljyaline band I'eaches across the third post. c. into the discal, 

 where it becomes yellowish ; two small subhyaline spots, coarc- 

 tate in the middle , in tlie costal cell , inside of the auxiliary 

 vein ; a yellowish spot immediately beyond this vein ; and 

 finally , a well defined yellow segment forming the apex of 

 tlie wing, within which, at the tip of the third vein, tliere is 

 a small brown spot. 



Hal). Java {Beccari, 1874); one female. 



NB. Tliis species agrees with the characters of Acanthoneura 

 Macq. I). E. II, 3, 220 : bristly costa, first and third veins, un- 

 dulated second vein ; arista plumose etc. The typical species, A. 

 fusciprmifs, from Bengal, is even very like poii/.mna in the di- 

 stribution of tlie spots on the wings, but Macquaj-ts description 

 and figure are too indefinite. My only specimen is very much 

 denuded of thoracic maci'ochetae ; still I can see by the scars, 

 that there were four of them on the scutollum. The third an- 

 tennal joint is longer than broad, with nearly parallel sides. 



