Genus Heptaphlebomyia. 533 



Wings with the first sub-marginal cell longer and narrower 

 than the second posterior cell, its base nearer the base of the 

 wing, its stem varying from one-third to one-half the length of 

 the cell ; stem of the second posterior about two-thirds the length 

 of the cell ; posterior cross- vein one and a half to twice its own 

 length distant from the mid ; scales on the seventh vein vary 

 from 10 to 15. 



Length. — 3 • 5 to 4 mm. 



The male described here was sent with the female but may 

 not belong to that species. 



$ . Head clothed with narrow^curved pale scales, a more or 

 less prominent median bare line ; clypeus and proboscis deep 

 brown ; antennae grey, with deep brown bands and verticillate 

 hairs. 



Palpi deep brown, the apical segment acuminate, last two 

 segments hairy, the antepenultimate thin and weak with a trace 

 of a pale band upon it, hairs black ; two apical segments equal. 



Thorax very similar to the female, but does not show pale 

 scales. 



Abdomen banded as in the female, narrow, with rather scanty 

 long pale brown hairs ; the apical segment with scattered creamy 

 scales, the penultimate with a pale basal band extending down 

 each side of the segment. Fore and mid ungues unequal, both 

 uniserrated, hind equal, simple and small. 



Wings with the seventh vein apparently not scaled. First 

 sub-marginal cell considerably longer and narrower than the 

 second posterior cell, its base nearer the base of the wing than 

 that of the second posterior cell, its stem about half the length 



Fig. 242. 

 Wing of Heptaphlebomyia simplex. (?. Theobald. 



of the cell ; stem of the second posterior cell not as long as the 

 cell ; posterior cross- vein nearly twice its own length distant 

 from the mid ; sixth vein curved almost at right angles at the 

 apex. 



Male genitalia with rather narrow basal lobes, with a long 



