434 PLATYPHOKA LUBBOCKII. 



Platyphora Lubbockii. — Nigra, nitida ; abdomine 

 triangulari, seginento tertio parvo ; femoribus posticis 

 basi llavidis ; alls apice latis, flavido-hyalinis, costa ad 

 basin subciliata, vena cubitali ad medium costse extensa 

 subcostali parallela, venulis undulatis. Long. | 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 ; antennae with the 

 third joint rather large, somewhat rounded ; thorax 

 broad, flat, rather broader than the head, angles 

 tolerably rounded, disk shining (in appearance sug- 

 gesting a small Sjphoerocera), beset with very minute 

 bristles, which become 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 

 Sphcerocera) ; each segment after the second success- 

 ively narrower, the last one being almost trian- 

 gular; the third segment is very short, contracted 

 under the second ; the hind margins form a curved 

 convex towards the thorax, the first segment being 

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

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

 thirds of hind femora yellowish ; middle tibiae 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 

 running 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, vanishing distinctly before the tip of the wing ; 

 second veinlet also S-like, diverging at its end from 

 the first, and ending distinctly below the tip of the 



