168 THE entomologist's record. 



a uurtliern form of L. tormineJla, a possiljility that had occurred to me, 

 but whicli I had uot before entertained seriously. I cannot too mucli 

 deprecate the method we have adopted with regard to some species, of 

 carryiu<^- on manuscript names, which are always a source of endless 

 trouble to scieutific workers abroad. It is clear that noue of our known 

 British species is sorbi, Frey, and this name must, as Lord Walsingham 

 says, be dropped for any of our present known British species. 



We then get as our British s2)ecies : — 



1. — L. tonninella, Frey. — Larva feeding on Pijrns (Sorbiis) toriiiiiKillK. 

 var. aucupariella, Scott. — Larva feeding on Pi/nis (Sorhun) auciipitria. 



2. — L. xpinicolella, Sta. — Larva feeding on Fninut; xpiiiusa and P. domeatica. 



3. — (?) h. padella. Glitz. — Larva feeding on Pniini.'^ padim. 



The question still remains — What is Hodgkmson's Lithoailletis on 

 Fi/rns aria ? The larva of one of Frey's species — L. c>/(loniella, Tin., 

 337 — is said to feedou Pi/rus conniiiDiis as well as Ci/donia rnliiaris. It is 

 said to feed in the underside of the leaves, as does Hodgkinson's on 

 P. aria, and it may be this species. At any rate, it would appear 

 possible that here we have also, another, not yet recognised, British 

 species. 



The " pomifoliella-spinicolella " group of the Lithocolletidae. 



By H. H. CORBETT, M.R.C.S. 



Mr. Tutt having sent me his MS. on the British species of the 

 ^ ' spinicolt'lla gvon])'' of the LithwolU'tidac, and asked for my assistance 

 in clearing up the muddle at present existing on the subject, I add 

 the following notes on the different species in this locality, together 

 with their food-plants, etc. 



Food-plants. — Near Doncaster, the following species of plants 

 occur that serve as food for the larvae of LithocoUetids, belonging to the 

 jHjw i foliella -siiinicvhila group : — Priuins spinosa : an abundant wood- 

 land and hedgerow native. P. institia : a somewhat rare and local 

 denizen. P. duvie.stica, prsec. var. : common in orchards and gardens. 

 P. ariioii : an abundant woodland denizen. P. j)rt (/?<,<; : very local but 

 common native. Crataegus ocryacantha : abundant native. Pyrxix aria : 

 local denizen, much planted in parks and shrubberies, not common in 

 woods. Pyrm torminalis : doubtful native and very local, we are at 

 its northern limit, and it only occurs commonly in one wood at 

 Wadworth. P. aucuparia : abundant native. I', mains and cultivated 

 vars. : abundant native and planted. I have not seen any Lithocolletid 

 mines on cultivated cherries or pears, but probably they do occur. 



Characters of mines found on the different plants. — Pnmus 

 dpinoaa, institia, and domestica : Small mines, usually running along 

 one side of the mid-rib of a leaf ; this is especially the case on the 

 small leaves of P. spinosa. In the larger leaves of cultivated plants, 

 and also in large leaves of spinosa and institia, the mine frequently is 

 situated between two of the secondary veins, but rarely occupies the 

 whole space, beginning at the mid-rib, but not reaching to the margin. 

 Colour, light grey. Abundant. 



Pruuns avium : Long mines, between the secondary veins of the 

 leaf. Sometimes, but rarely running along the margin, but never 

 along one side of the mid-rib. Colour, light grey. Abundant. 



Primus padus : Very irregularly-shaped mines. Either long and 

 narrow between the side veins, or short, and just within the margin of 



