TRIFID^. 347 



the time at the occurrence of the last two species, the 

 examples of which I still possess." 



It has seemed only reasonable to reproduce this evidence 

 in detail. It does not convince me ; indeed the circumstance 

 last recorded is not remarkable, except for the occurrence of 

 A. dbelisca, and as there is no other record of that species in 

 our Eastern and East Midland districts, nor an inch of 

 locality such as it frequents, it is difficult to account for the 

 two specimens obtained. Perhaps the curious imitations of 

 other species by varieties of A. tritici, as already noticed, 

 may partially explain Dr. Rossler's results, and it is hardly 

 reasonable to suppose that his multitudes of larvae were, in any 

 case, all of one species. We have what seems to be sufficient 

 evidence of the reliability of all these four species, and until 

 two or more of them have been reared from eggs deposited 

 by one specimen it will, I think, be safe to regard them as 

 distinct. 



13. A. aquilina, Hub. — Expanse 1| inch. Very similar 

 to the brown form of ^. tritici ; fore wings broader, especially 

 so at the base, dull brown, clouded with darker ; stigmata 

 pale brown, in a darker cloud ; hind wings whitish, tinged 

 with brown, and with faintly brown nervures. 



Antennae of the male pectinated with short, sharp-pointed 

 teeth, each crowned by a slender tuft of minute bristles ; 

 these teeth taper off beyond the middle, leaving the apical 

 fourth part of the antennse simple ; the whole finely ciliated, 

 brown. Palpi and head densely tufted, reddish-brown; 

 collar similar, faintly barred and edged with ashy- white; 

 remainder of the thorax reddish-brown, crested at the top 

 and back, the hinder crests tipped with dark brown and 

 whitish ; fascicles spreading, whitish ; abdomen dull brown 

 with small lateral tufts and rather long reddish anal tuft. 

 Fore wings rather broader than in A. tritici^ costa very 

 slightly rounded ; dorsal margin also rounded ; apex very 

 bluntly angulated ; hind margin beneath it nearly straight 



