434 PLATYPHORA LUBBOCKn. 



ra-shape, and has the cubital vein forked, oosta bare, 

 &c. 



Platyphoea Lubbockii. — Nigra, nitida ; abdomine 

 triangulari, segmento tertio parvo ; femoribus posticis 

 basi flavidis ; alis apice latis, flavido-hyalinis, costa ad 

 basin subciliata, vena cubitali ad medium costse ex- 

 tensa subcostali parallela, venulis undulatis. Long, f 

 lin. 



Broad, flat, shining ; frons very broad, the eyes 

 scarcely occupying each one-sixth the width of the 

 head ; it is moderately shining, gently arched, and 

 pretty densely clothed with minute bristles ; the three 

 ocelli visible slightly luteous ; antenna with the third 

 joint rather large, somewhat rounded ; thorax broad, 

 flat, rather broader than the head, angles tolerably 

 rounded, disk shining (in appearance suggesting a small 

 Sphcerocera), beset with very minute bristles, which be- 

 come rather scarcer towards the hinder part ; scutellum 

 rather dull, margined, nearly four times as broad as 

 long : abdomen black, narrower and shorter than the 

 thorax (again suggestive of Sphmrocera) ; each segment 

 after the second successively narrower, the last one be- 

 ing almost triangular ; the third segment is very short, 

 contracted under the second ; the hind margins form a 

 curved convex towards the thorax, the first segment be- 

 ing slightly emarginate in the middle ; the sixth (last) 

 is much the longest. Legs stoutish, blackish, basal two- 

 thirds of hind femora yellowish ; middle tibise with 

 two small spines at the tip. Wings considerably over- 

 lapping the abdomen, yellowish hyaline, darker about 

 the basal half of the costa, blunt at the tip, cubital vein 

 extending about half the length of the wing, and the 

 costa slightly ciliate up to its end, subcostal vein run- 

 ning parallel to it and ending just before it ; both veins 

 a little thickened at their ends ; first veinlet curved S- 

 like, considerably at its base, slightly at its end, vanish- 

 ing distinctly before the tip of the wing ; second veinlet 

 also S-like, diverging at its end from the first, and end- 

 ing distinctly below the tip of the wing ; third veinlet 



