PBACTICAL HINTS. 381 



1901, Mr. G. H. Verrall, F.E.S., referring to a recent note in the 

 Ent. Ilecurd (antea, p. 334) dealing with the subject of the right of 

 entomologists to collect on Wicken Fen, stated that he and other 

 entomologists possessed plots of land in Wicken Fen, that any bond 

 fide entomologist who applied to him might have permission to go on 

 his land, and that this would carry a right to be on the droves in 

 order to get on the land. He doubted whether the droves were public 

 rights-of-Avay except to get on to the various plots belonging to 

 different owners. It was stated that Mr. Aspland greatly magnified 

 the extent of his holdings on the Fen. 



Can any entomologist oblige Mr. A. Bacot, 154, Lower Clapton 

 Road, Loudon, N.E., with any or all of the following Lachneid species for 

 examination: — Eustatidini/eria vcDidcUcia, I'aralebeda idai/iffra, Xadiasa 

 undata or X. ohwlcta, Pi/rosis cxiinia or P. id iota ! If ova, larvfe, or 

 pupje are available they would be especially welcome. Mr. Bacot is 

 attempting to work out a rational grouping of the Lachneid moths, 

 and these species, which are not represented in the British Museum 

 collection, are required badly for examination. 



JpRACTICAL HINTS.* 



Field Work for December. 



By J. W. TUTT, F.E.S. 



1. — Keep larvae of ^lacrothijlacia riibi out-of-doors until December, 

 then obtain a large bunch of heather, place in a jar of water in 

 cage with larvae, and remove cage near to the kitchen fire ; the larvfe 

 soon get lively, crawl about on the heather, and spin up in a week or 

 two ; emergence commences in the middle of February (Butler). 



2. — The pupae of Gnophria rubricollis are to be obtained in a slight 

 cocoon, surrounded by an outer covering of spider-like web. They 

 have been found under the " topper " of a stone wall which surrounded 

 a fir plantation (larch, spruce, and Scotch), the larvae feeding on the 

 lichens on these trees and probably on the lichens on the hawthorns, 

 which hung over the wall (Todd). 



3. — The larvie of IJipparchia snmie hybernate small, remaining on 

 the grass all the winter, and showing no tendency to burrow or hide ; 

 they feed a little all the winter in suitable weather, but do not grow 

 perceptibly till spring. 



4. — In November and early December Hybcrnia di'foliaria and H. 

 aurantiaria are both very common in Epping ; the 2 s are to be found 

 freely after dark on tree-trunks, with a lantern. 



5. — The males of Poecilocaiupa popnli come freely to light during 

 November ; there is then often a break in December with a fresh lot 

 of imagines appearing towards the end of the mouth and during the 

 first week in .January (Mason). 



6. — In December a visit to Benfleet (or any other similar coast 

 district) will usually give an abundance of the cases of ( 'olcojdiora 

 artemisicolella on sea-wormwood (Arli'iiiisia absijnthiuni ). 



* Practical Hints for tup: Field Lkridopterist, recently published, contains 

 1,250 similar hints to these, distributed over every month in the year. Interleaved 

 (for collector's own notes). — Ed. 



Eeratum. — p. 305, line 6 from the bottom, for "porcelltts" read " elpemr. 



