On a new Genus of BlepKaroarid Flies. 203 



Both wings orange-yellow, the secondaries not so bright as 

 the primaries, both having a broad outer margin of neutral- 

 grey, tapering somewhat narrower at the tornus. 



Expanse 50 mm. 



Hdb. Lagos, West Africa ; December 8th. 



Type in the Oxford Museum. 



XXVI. — On Elporia, a new Genus of Blepliarocerid Flies 

 from South Africa. By F. W. Edwards, B.A., F.E.S. 



(Published by permission of the Trustees of the British Museum.) 



In the 'Annals and Magazine of Natural History ' for June 

 1912, I described under the name Kelloggina bavnardi the 

 only species of Blepharoceridaj which has yet been recorded 

 for the Ethiopian region. At the time of writing, the insect 

 appeared to me to possess all the main characters of the 

 genus Kelloggina, but, as will now be shown, the South 

 African species must be excluded from that genus on account 

 of an important difference in the structure of the eyes. 



I was led to make a more careful examination of K. bar- 

 nardi, on account of a suggestion made by Prof. M. Bezzi, 

 in his paper " Blefaroceridi Italian! '' (l'Jlo), that the larvae 

 described as K. barnardi did not belong to the same species 

 as the adults, as these larvse appeared to him to be related to 

 Blepharocera * . The specimens on which the original 

 description of K. barnardi was founded, being for the most 

 part newly hatched, were somewhat shrivelled, and, under 

 a dissecting-microscope, there was no evidence of any 

 division of the eyes into two portions, as in many genera of 

 this family. This was only what was to be expected, as the 

 wing-venation of the new species was practically identical 

 with that of Kelloggina and Paltostoma, the latter of which 

 at least undoubtedly has simple eyes. When, however, 

 specimens of K. barnardi were boiled in potash, it was at 

 once evident that the eyes were very distinctly divided into 

 upper and lower portions f, although, as there was very little 

 difference in the size of the facets of the upper and lower 

 portions, it was only when the eyes were unshrunken that 



* As has recently been shown by Scott, this suggestion was un- 

 founded. 



t Scott has recently stated that the contrary is the case, but his 

 observation was made on a badly-mounted specimen. 



15* 



