386 



T D. A. Cockerell — Descriptions of Tertiary Insects. 



The wing lias an extraordinarily Lepidopterous appearance, 

 being very much as in the broader-winged Noctuids, and even 

 more like some of the Hesperiids, especially in the distinct anal 

 angle. Regarding it as Lepidopterous, the visible portion of 

 the venation nearly agrees with that of Ado?ieta, except for the 



Fig. 10. 



Fig. 11. 



Figs. 10 and 11. Phedacopsyehe vexans Ckll. 



insuperable difficulty of two extra veins between the supposed 

 media and cubitus. . Treated as Trichopterous, this difficulty 

 disappears, the supposed median cell being the discoidal, in the 

 forks of the radial sector. 



The generic characters ascertained are as follows : — 

 Discoidal cell present, elongate triangular ; no median cell ; 

 radius (R x ) joined to first branch of radial sector (R 3 ) by 

 a cross-nervure, about l mm (on R 2 ) beyond discoidal cell : at 

 this cross-nervure (which is regularly present in Panovpa, 

 and also occurs in various Trichoptera, as Rhyacophila, 

 Odontoccrum, and Namamyia) the radius is bent a little 

 upwards, as shown in the figure. The five branches of the 

 radius, and four of the media, are all present, and consequently 

 the apical cellules 1 to 7, none being either absent or stalked. 

 R 2 and R 3 leave the discoidal cell close together near its apex, 

 and R. leaves its lower corner, being in a line with its lower 

 side. M 3 and M 4 are stronger than M L and M 2 , and appear to 

 form the principal branches of the media, M 1 and M 2 leaving 

 from an evanescent vein passing up from the media to the 

 radius. Mr. K. Banks, to whom I sent a sketch of the vena- 

 tion, remarks on the apparent absence of the anterior main 

 branch of the media, which should go to M 1 and M 2 . I have 

 carefully examined the specimen, and although the main stem 

 of the media is strong and dark, I find no sign of this branch. 

 It seems as if it had migrated forwards, to form the vein leav- 

 ing M 3 for the bases of M, and M 2 , the latter being connected 

 at the base also (by a cross-vein) with the radial sector. 



