PRACTICAL HINTS. 187 



Heading, and on to Marlow {antra, pp. 50-51) ; they were the early 

 (spring) brood, and my collecting in those days consisted chiefly of 

 schoolboy excursions after birds' eggs, of which I have kept marked 

 and dated specimens. The hills beyond Streatley were a favourite 

 hunting-ground with uie in the sixties and early seventies, and my 

 records bear out j\Ir. Holland's supposition that P. bellarijuH did exist, 

 but very sparingly, in the Berkshire district, before his notes were 

 collected. — John Henderson, '24, Birchin Lane, E.G. April Srd, 1902. 



Sesia stellataruw in Sussex and Devon. — I saw Sesia stellatarum 

 ill my garden at flowers of Aubretia for the first time this spring 

 to-day. — W. H. }^. Fletcher, Aldwick Manor, Bognor. April ISth, 

 1902. 



I saw a specimen of Sesia stdlafanim flying swiftly along the front 

 at Torquay on April 1st. I saw none at the flowers. — J. W. Tutt. 



A specimen of Sesia strllataruiu was knocked out of a bush at Boui'ne- 

 mouth in February last. — (Ma.jor) R. B. Robertson, Boscombe. 

 April irjth, 1902. 



Sphingids in the Carlisle District. — Both Aiiiorpha popidi and 

 Smerinthus ocellata are common in the district. Recently I saw a 

 })icture-maker, with some 40 of each, bred specimens, in his possession. 

 1 also saw a specimen of Hippntion celeria, taken at Springfield, near 

 Gretna, in 1900. I am not sure whether it Avas taken on the Scotch 

 or English side of the border. — G. Wilkinson, 55, Trmity Buildings, 

 Wigton Road, Carlisle. A}>ril llt/i, 1902. 



J^RACTICAL HINTS*. 



Field Work for May and June. 



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



1. — In early Way the $ (jonepteiij.r rhanini lays her eggs on 

 lihamnns, choosing the undei'side of a leaf, or the twig itself, or 

 a bud. When a bud is chosen, only a single egg is laid as a rule on 

 each ; a terminal bud is frequently chosen, and occasionally the upper- 

 side of a leaf (Grover). 



2. — In order to secure cross-pairing for purposes of hybridisation, 

 place the individuals that you wish to cross in one cage, and a $ of 

 the same species as the <? in an adjoining cage, near enough for the 

 cT in the first cage to be affected by the scent dift'used by the ? in 

 the second. 



8. — During May and early June low marshy ground in which 

 Scabiosa arcennis is growing should be worked for Heinaris bombyli- 

 formis [titi/us). PnUcidaris sylratica is, in such situations, a favourite 

 flower to attract the species, so also is Ajuj/a reptans. 



4.- — A newly-emerged (Jerara fureula or C. bifida should be placed 

 (m a tree-trunk at dusk in garden (or elsewhere). By dark one will 

 often find a male paired with her. 



5. — The larva- of Nudaria mnndana are to be found in May in 

 colonies numbering thousands, feeding on lichens on beech-trees and 

 stone walls in the Cheltenham district (Robertson), 



* Pkactical Hints for the Field Lepidoptemst, pulilished last May, and 

 already almost completely out of print, contains 12.50 similar hints to these, dis- 

 tributed over every month in tlie year. Interleaved (for collector's own notes). — Ed. 



