S8 



GENERAL OBSERVATIONS ON THE GENUS LITHOCOLLETIS. 



In Hiibner's *' Sammlung Eu- 

 ropaischer Schmetterlinge" are seven 

 figures of this genus, none of which 

 are good, and only Ulmifoliella, fig. 

 444, and Alnifolietla, fig. 193, with 

 difficulty recognizable. 



In 1806, Donovan, in the 11th 

 volume of his " British Insects," 

 gave two wretched figures of this 

 genus. 



In 1829, appeared Curtis's account 

 of the genus Argyromiges, but as 

 unfortunately the species selected 

 for figuring was Lyonetia Clerckella, 

 we are disappointed if we look in 

 that work for a representation of the 

 genus Lithocolletis. In the enumera- 

 tion of the species Curtis mentions the 

 habit of Cramer ella of mining oak 

 leaves. 



The same year, 1829, appeared 

 the fourth part of Haworth's " Le- 

 pidoptera Britannica," in which, 

 besides introducing the six Fabrician 

 species, he describes two species as 

 identical with those figured in 

 Hiibner, and describes three new 

 species ; his remarks also show that 

 he had considered the Linnaean 

 Rajella and Harrisella to represent 

 species of this genus, so tliat without 

 counting his varieties we find he 

 enumerates 13 species, or as many 

 as Fabricius and Hiibner put to- 

 gether. 



In 1833, Treitschke introduces, in 

 his genus Elachista, three species of 

 Lithocolletis, and these are all that 

 occur in his work. 



In 1834, Stephens, in his "Illustra- 

 tions," reached the genus Argyro- 



Dans I'ou vrage de Hiibner, " Samm- 

 lung Europaischer Schmetterlinge," 

 il y a sept figures de ce genre, mais 

 aucune n'en est bonne, et seulement 

 V Ulmifoliella f. 444, et Alnifoliella f. 

 193, sont a peine reconnaissables. 



En 1806 Donovan, dansleonzieme 

 tome de ses " British Insects," nous 

 donna deux figures tres-mauvaises 

 de ce genre. 



En 1829 parut, dans I'ouvrage de 

 Curtis, le genre Argyromiges, mais 

 I'espece figuree etant malheureuse- 

 ment la Lyonetia Clerckella, nous 

 y chercherions en vain une figure 

 d'une Lithocolletis. Dans I'enu- 

 meration des especes Curtis fait 

 mention de I'habitude de la Crame- 

 rella de miner les feuilles de chene. 



La meme annee, 1829, parut la 

 quatrieme partie des " Lepidoptera 

 Britannica" de Haworth, ou outre 

 qu'il y introduit les six especes 

 Fabriciennes, il decrit deux especes 

 comme identiques avec celles figurees 

 par Hiibner, et de plus troisnouvelles; 

 ses remarques cependant nous mon- 

 trent qu'il considerait la Rajella et 

 V Harrisella deLinne comme represen- 

 tant des especes de ce genre ; ainsi, 

 sans compter ses varietes, nous trou- 

 vons qu'il donne treize especes, ou 

 autant que Fabricius et Hiibner en- 

 semble. 



En 1833 Treitschke introduit dans 

 son genre Elachista trois especes de 

 Lithocolletis, et ce sont les seules que 

 nous trouvions dans son ouvrage. 



En 1834 Stephens, dans ses "Illus- 

 trations" arrivant au genre Argy- 



