1S99.] 243 



confusion about them. It should be noticed that cerasicolella, H.-S., 

 and spinicoleUa fall into a group by themselves, separated from the 

 other species by both larval and imaginal (sexual as well as superficial) 

 characters, by their habit of hibernating as larvae instead of pupae, 

 and by the fact that their usual food-plants belong to a different tribe 

 of the Natural Order Rosacece, viz., the Frunece as opposed to the 

 PomecB \cf. Hooker, Stud. Flor. Brit. Isl., ed. 3, pp. 113—4 (18S4)]. 



My attention has been drawn by Mr. Durrant to a Lithocolletis 

 described by H. de Peyerimhoff in MT. Schweiz. Ent. Ofes., iii, 413 

 (1872), under the name cerisolella, and described again and figured 

 by him in Ann. Soc. Ent. France (ser. 5), ii, 201—2, pi. vi, 11 (1S72). 

 He says that the imago is similar in colour to cydoniella and the larva 

 feeds on cultivated service (" le sorhier cultive''), but since the mine 

 is formed on the itpper-side of the leaf, the species obviously belongs 

 to quite a different group from those here dealt with, all of which 

 feed on the undersides of the leaves. 



1. — Lithocolletis cerasicolella, H.-S. 



Lithocolletis cerasicolella, H.-S., Schmet. Eur., fig. 784 — 5 (1852), 

 V, 326—7, No. 1013 (1855) ; Frey, Tin. u. Pter. Schweiz, 341, No. 14 

 (1856) ; MT. Schweiz. Ent. Ges., i, 350, No. 82 (1865) ; Lep. Schweiz, 

 413 (1880) ; Snell., Tijd. v. Ent,, xi, 70 (1868), xii, 212 (1869) ; 

 Vlind. Ned. Microlep., 923—4, No. 21 (1882) ; Hein., Schmet. 

 Deutsch., Tin., 670, No. 1059 (1876) ; Shgn., Kleinschmet. M. Brand., 

 276, No. 522 (1886) ; Corbett, Ent. Mo. Mag., Ser. 2, iv, 82—3 

 (1893) ; Meyr., HB, Br. Lep., 741, No. 22 (1895). 



= LitJiocolletis malialeheUa, Miihlig, Stet. Ent. Zeit., xxiv, 212 

 (1863) ; Frey, MT. Schweiz. Ent. Ges., i, 351, No. 37 (1865). 



= Lithocolletis cerasicolella,\2iY.persicella,iite\xdie\, JH. Ver. Nat. 

 Wiirrt., xxxviii, 232 (1882). 



^ Lithocolletis \_cerasicolella'\ var. mahalebella, Hering, Stet. Ent. 

 Zeit., Iii, 216, No. 2856, var. (1891). 



Larva — m mine on under-side of leaves of Prunus avium, cerasus, 

 and rarely on their cultivated varieties ; also on P. mahaleb, armeniaca, 

 "domestical'" (Sorhagen), mirabel plum (Frey), "wild plum" (Ma- 

 chin), Persica, and Pi/riis communis (Fritzsche), vi, ix — iii. According 

 to Gartner (teste Sorhagen), the larva has also been found on Fagus, 

 but this is so unlikely a food-plant that I cannot accept the statement 

 without further evidence. 



