13 



ii<riin's arc given: and llicwork iiiiisl liavc hccii prrpaivd l)illirc tlial ol 

 Steplions, as it is a part of an extended work. 



In is;;i, Stephens, in his " llhist rat ions," proposed several new tjeiiera. 

 In isio, lioisdiival, in the "Genera et Index Mcthodus Euiopccorain Lv 

 pidoptcrorum,'' enumerates litl\-nine genera under the head Gcomctrce, pro- 

 posing a few new oiu/s himself. No subdivisions of the GeomeJrce are 

 proposed. The grou|) l)egins with Heliothc.a uiul Cleogcne; then f()llows 

 Geoineira, and its allies Mitrocampn. Ump/eii/.v, etc. A part of the modern 

 Larcnthue come befor(! Ephijm and Acidalia, while at the end are placed 

 Sioud, SthaneUa, Odez'nt, Torula, Psodos, Fijgnuena, Anthometra, and lastly 

 Minoa. ll will be seen that the arrangement has little merit. 



In 1S47, Herrich-Srhaeller proposed a new classification of the family 

 in iiis '■'■ Syxtematisrhc Bearbeitiing drr Schmetterlinge von Europa." He 

 divides il, under the name Gro/neirides, into two divisions: 

 I. Phi/lometridcs. 

 II. Dendrometridcs. 



The latter comprises Anlsopteri/x, Li/Unia, S/errha, Minoa, Hydrdia, 

 Eupithecia, Larentla, Cheimotobla, and Chesins. \\\ the remaining genera, 

 of which there are filty-two, are included in the Fhytome.trldes. 



The arrangement of these genera is not satisfiictory, and many wcU- 

 dtifined genera are regarded as sul)genera by tlic author. It is needless to 

 remaiiv that the division into Pit ytoviel rides and Dendroinetrides is essentially 

 arlitleial. 



In 18 .0, Stephen's "List" of the Lepidoptera in the British Mnseum 

 ap[)eared. It is a new list, but notable from his adoption of Ilubners genera. 

 He divides the family into nineteen subfamilies. Tlu; arrangement of the 

 genera is quite unnatural. 



In 1853 appeared hedwcvs ''Versuc/i die curojn'/isc/ien Spanner." This 

 was by liir the most carefully prepared win-k that had hitherto appeared on the 

 Euro[)ean s[)ecies of tiiis family. The genera are carefully described, especial 

 stress being laid on characters drawn from the venation. A nunii)er of new 

 genera are proposed, some of which, however, I have felt oi)lige(l to set aside 

 on account of (heir having, in my judgment, been pre-,occupied by lliibner's 

 names. He divides the family into four groups, without naming tln-m. 



Group I comprises (he (reometridoi of Guenee. Group II is my Acida- 

 linm. Group III comi)rises the Enrioniidce, Ampliidarida', Boarmidce, Cube- 



