ALEXANDER, BLEPHAROCERIDJS AND TANYDERIDJ3. 3 



mains of the semi-atrophied 1st Anal persists immediately 

 behind vein Cu\ the net-like false reticulation is very distinct. 



The female genitalia is represented only by two flattened, 

 strongly compressed valves at the end of the short abdomen. 

 Genotype. — Edioardsina chilensis, sp. n. (Chile). 



This generallized group introduces several new features 

 of wing-venation. From the above generic description it 

 will be seen that this species has four complete bianches of 

 radius attaining the wing-margin, this being the only known 

 species of the family where such is the case. The condition 

 of media is hkewise very generallized and shows the manner 

 of connection of the distal end of vein M3 which in many of 

 the genera h'es free in the wing-membrane with no indication 

 of its past connections. This insect likewise shows that the 

 vein hitherto interpreted as being the m-cu cross-vein by 

 Kellogg (Genera Insectorum, no. 56, Blepharoceridae, 1907) 

 and others is not this cross-vein but the basal deflection of 

 Ms before its fusion with cubitus. True m-cu is thus lost 

 by the long fusion of Cuj and 31 3. 



The closest relative of this new genus would seem to 

 be the genus Bibiocephala Osten Säcken (Western North 

 America) in which a trace of vein B2 persists, being repre- 

 sented by a short, transverse element lying in the fork of 

 the sector, and in which the distal portion of vein M3 lies 

 free in the wing-membrane, its connection with Cu having 

 been lost by atrophy. Edwardsina agrees with the other 

 South American Blepharocerid genera, Curupira, Paltostoma 

 and Kelloggina in that the eyes are not divided into two 

 parts by an unfacetted crossband. All of these genera, how- 

 ever, have a highly speciallized wing-venation and are very 

 different insects. 



It is with the greatest pjeasure that this remarkable new 

 genus is dedicated to Mr. F. W. Edwards, as an apprecia- 

 tion of his careful and instructive work on the South African 

 Blepharocerid genus, Elporia Edwards (Annales and Magazine 

 of Natural History, series 8, vol. 9, pp. 633—634, June 1912; 

 vol. 16, pp. 203—215, September 1915; vol. 17, pp. 309— 311, 

 April 1916). 



Edwardsina chilensis, sp. n. 



Brown, the head light gray pruinose; mesonotal prae- 



