THE YOUNG NATURALIST. 



135 



at Folkstone he would have .seen a difference. After some further discussion, 

 Mr. Clark mentioned that the larvae of Cory don and Adonis were so nearly 

 allied, that even such authors as Buckler and Hellins failed to detect any 

 difference, except a slight variation in the colour of the hairs. Mr. 

 Huckett said that though the larvae seemed so alike, there was only one 

 brood of Cory don against the two of Adonis, 



June l§th, — Mr. Huckett, Vice-President, in the chair. Mr. Russell ex- 

 hibited two specimens of D. irregularis, bred ; Mr. Sampson, series of A. 

 euphroysne, one of which was rather dark ; Mr. Hanes, N. lucina, T. ruhi, 

 and A. eupArosyne (a fine variety, the hind wings suffused with black ; Mr. 

 Clark, specimen of C. plantaginis bred this day, also a very fine series of bred 

 E. curzonii. Mr. Grey had taken C. porcellus and L. adonis at Reigate ; 

 Mr. Anderson brought forward the discussion on L. acis. This species he 

 had not had any personal experience with, and had gathered his information 

 principally from the volumes in the Society's library. In classifying 

 this as an extinct species, we are, perhaps, wrong, as we have records 

 up to a very recent date, but there can be no doubt that it is only a 

 question of a few years before it will cease to be truly a native, although some 

 fifty years ago it appears to have been observed abundantly in many localties 

 widely distributed from each other. Year after year, however, it has become 

 rarer and rarer, making its last stand in the neighbourhood of Cardiff; and 

 that enemy of the entomologist — the builder — having destroyed the spot, 

 there is indeed only too good a reason to believe that in future we may look 

 in vain for British Acis. Kirby, who calls this species Semiargus, states that 

 it is common throughout Europe and part of Asia, being on the wing from 

 May to August. Mr. Anderson was of opinion that there are two broods, 

 which run into each other. The larvae is stated by the same authority to be 

 covered with fine yellowish-green hairs, and to feed during August and Sep- 

 tember, on Anthyllis vulneraria (the Kidney Vetch) . Stephens, in his 

 " Illustrations of British Entomology," published close on 60 years ago, de- 

 scribes it as a scarce and local species, inhabiting chalky districts, at the end 

 of May and again in J uly ; he further mentions Norfolk, Cambridgeshire, 

 Yorkshire, Dorsetshire, and Surrey, as counties in which it could be obtained, 

 and also mentions a locality near Brockenhurst, in the New Eorest ; he makes 

 no mention whatever of the larva. Mr. Newman mentions it was very com- 

 mon in Herefordshire about 50 years ago, he having taken it at Leominster 

 in some numbers, but it would appear to have very quickly afterwards become 

 scarce. Since, in 1849, we find that the Rev. J. Greene thinks it of sufficient 

 importance to record the capture of two specimens. Advancing another ten 

 years, Stainton, in 1859, records it as almost extinct, and the larvae at that 



