LRPIDOPTEKA. 



be distiiiguislied ; and Arcntropvs has been placed in tliis order 

 by AVestwood (Tntrod. to Mod. Classif. of Insects, vol. ii. p. 412), 

 and by Kolenati (Genera et Species Trichopterornra, ]). G), who 

 had himself taken forty specimens of the insect : it is possible that 

 future investigation, and the discovery of the primary states of 

 this insect^ may show that their views of its aiUnities are w'ell 

 founded. The Horaopterous Alei/roiles prulctclla was described 

 by Liuna3us as a Tinea, but the resemblance of the perfect insect 

 is very superficial. The resemblance of the Dipterous genus 

 PsijcJwda would ap])ear to )nislead some entomologists, Professor 

 Zeller having had specimens sent him to name as species of the 

 Psf/clikhe. 



The two main divisions of the Lepidojjtera are : — 

 I. With the apex of 1 lie auteinia^ thickened . . Ruopalockka. 

 I [. With the apex of the antenna! not thickened Heterocera. 



I. rvHOPALOr;EKA, Dnuuril, BoisJnvaL 

 DliiriKi, Latrcillc. 



Jvleinirr apiro /iicrassalo, avUci'lis mediJs ehvgatis. 

 Alee ill (/iiii'te crcdcr, posterlorcv nine, retinaculo. 

 ProlJiorax sine coUari. 



AnkmuE with, tlte apex ineramiled {p. few exceptions occnr anionp; the 

 Morpliidai) ; the middle joints etoi/ffatcd. llliigs in rejiose erect {Iles- 

 periamalvaruiii i\\u\ Taejes sleep with the wings decumhcnt) ; tlie pos- 

 terior without (I bristle. I'rothornx vnthont a collar (in the llesperuUi' 

 there is a slight development of a collar). 



II. HETEROCERA, Bolsduval. 



AntemifP. selacecv velfusifo7iiies, apicc aiteimato. 



Ala' in quiet e plaiirr, poster lores cum retinaculo vet sine co. 



i'rothorax collari tcctus. 



Antenn/e. setaceous, or fusiform with the apex attenuated (Castuia forms 

 an exception, and was therefore jilaeed by early writers among the 

 (linnial Lepiiloptera ; the development of the collar, and the bristle of 

 the posterior wing, show that it belongs to the Heterocera) ; winrjs in 



