234 THE YOUNG 



V. Io. Common everywhere. 



Pyrantels atalanta. Common everywhere. 



P. cardui. Cambridge. Occurs in more 

 or less abundance, according to the season, 

 in all parts of the county. 



Apatura iris. Cambridge (one specimen 

 in 1868) , but is rare in the immediate neigh- 

 bourhood of the town. Occurs in the wooded 

 district of South Cambridgeshire. 



Arge galathea. In all parts of the county, 

 in some places more abundant than others. 

 It is not common at Cambridge. 



Pyrarga cegeria. Throughout the eastern 

 and southern part of the county. Possibly 

 generally distributed, but cannot speak 

 positively as to the fen districts ; I do not 

 remember ever seeing it there. 



P. megcera. Common every where. 



Satyrus semele. Generally distributed. 



S-janira. Common everywhere. 



8. tithonus. Abundant everywhere. 



S. Jiyperanthus. Shows a preference for 

 clay or chalk lands. Common in most parts 

 of the county. 



Chortobius pamphilus. Common every- 

 where. 



Thecla W-album. Generally distributed 

 throughout the county, but not common. 



T.jpruni (?) I have an idea this occurs in 

 the neighbourhood of Fen Drayton, and 

 entertain the hope I shall meet with it yet 

 and be able to add it to the insects of this 

 County. 



T betulce. Throughout the county, but 

 nowhere common. 



The Large Copper has not been taken in 

 the county since 1845. 



Zyccena cegon. Southern and eastern parts 

 of the county. 



L. corydon. Cherryhinton chalk-pits, near 

 Cambridge. 



L. acis. Taken some years ago by Mr. 

 Seville at Papworth ; has also been taken 

 in Cherryhinton chalk-pits, near Cambridge, 

 and at Sawston, but I know of no recent 

 captures. 



NATURALIST. 



L alsus. Generally distributed. 

 L. argiolus. In several places in the 

 county, 



Hesperia sylvanus. Common everywhere. 



H. comma. Newmarket, Fulbourne, near 

 Cambridge. 



H.linea. Is reported to have been taken 

 in the county. I have never met with it 

 myself, and fancy it has disappeared of late 

 years. 



PARCELS' POST 

 EXCHANGE CLUB. 



The first club instituted in accordance 

 with the suggestion thrown out in the Young 

 Naturalist has been in operation nearly three 

 months, the box being now on its third 

 round. As the club is necessarily confined 

 to ten members, and more than that number 

 expressed their desire to join, it will be well 

 to give a few details now of the mode of 

 working that has been adopted, and how far 

 it has been successful, in the hope that a few- 

 more names will be sent in and a second 

 club inaugurated. The mode of working is 

 as follows :— a light boxbox has been provided 

 sufficiently large to hold ten small ones 

 about the size of ordinary postal boxes, and 

 weighing with all its contents under 3Ibs. s 

 thus passing by parcel post for sixpence. 

 Each member places in his own box whatever 

 species he has for disposal, and of any order 

 of insects, and takes from the other boxes 

 whatever they contain that he wants, iso 

 stipulations are made as to giving an equiva- 

 lent for what is taken, each member being 

 expected to do his best. The box is not to 

 be retained more than three days, and thus 

 passes round to all the members in little 

 over a month. A note book is provided in 

 which each makes any remark he may 

 desire, which is thus read in turn by all. 

 Here he may ask for any special insect, make 

 notes as to variation, or call attention to any 



