8 THE ENTOMOLOGIST. 



Sterrha, and Lcptomeris* only ochrata going to sterrha. I shall 

 speak more particularly of the two larger genera presently ; of 

 the early stages of his Sterrha I know practically nothing, ex- 

 cepting that the larvae seem somewhat intermediate in form 

 between those of the other groups, and that Mr. Tutt notes dis- 

 tinctive egg characters. In Buckler's ' Larvae of British Butter- 

 flies and Moths' (vii. p. 82) is the astonishing italicized statement 

 that " its (the larva of S. odirata) ventral pair of legs is on the 

 eleventh segment," which, in modern nomenclature, would be 

 the seventh abdominal ; if there is not some error of observation, 

 this distinction would be of far more than generic value, but I 

 confess that I can hardly credit the statement. I ought to 

 mention here that Herrich-Schaeffer founded yet a fourth genus 

 upon imaginal leg-structure for A. fumata, naming it Pylarge, 

 and that Meyrick has accepted this in his * Handbook' ; but the 

 larva seems, from all accounts, so near those of immutata and 

 remutata, that I dotibt whether it could not better have been 

 allowed to rest in Lepto)iieris, as in Meyrick's 1892 ' Classifica- 

 tion ' (Trans. Ent. Soc. Lond.). 



A few other attempts to isolate aberrant species of "Acidalia" 

 may be very briefly mentioned. Immorata, with its warmer and 

 rougher scaling, tesselated fringes, and less characteristically 

 "waved" pattern, was placed by Guenee in Strenia, along with 

 clathrata ; but this was entirely erroneous. Emarginata, on 

 account of its peculiar shape, had a special genus, Ania, erected 

 for it by Stephens long ago, and this is followed by Barrett in his 

 new book, and will probably prove worth adopting. Barrett also 

 (* Lep. Brit.' viii. p. 72) uses Timandra (wrongly, of course, as the 

 name belongs to amata) for the species which have the hind wing 

 angulated ; they can probably for the present remain as a section 

 of Meyrick's Leptomeris. Rusticata, being our only British wave 

 with a "carpet band" {i.e., darkened central band) originally 

 got placed among the Carpets, and Stephens in his 1850 Cata- 

 logue maintained it as a separate genus under the name of Cos- 

 morhoe, Hb. ; Hijbner himself (' Verzeichniss,' p. 326), had some- 

 what mixed contents for his Cosmorhoe, namely, galiata, ocellata, 

 rusticata. The question of the exact position of this charming 

 little species {rusticata) is a somewhat difficult one ; but it has 

 long been recognized, and is beyond the possibility of cavil that 

 it is a true " Acidalia " in the broad sense in which I have used 

 the term in the title of my paper this evening. Its larva is one 

 of the stout and rugose ones with stiff, clubbed bristles, and 

 would belong very well with interjectaria, &c., in Ptychopoda (= 



* Eois, as Moore and Warren have pointed out, rightly belongs to 

 russearia, Hb., and this genus should be called Ptyclio;poda, Steph. Mey- 

 rick's other names seem historically correct. Warren and Swinhoe have 

 recently substituted Emmiltis, Hb., for Leptomeris, but Herrich-Schaetfer's 

 prior restriction makes pygmcearia, Hb., the type of Emmiltis, which is 

 hence a quite distinct genus. 



