ii*ii.] 267 



of a 9 L. umbratus, which was accei^ted in lOoHbya queenless colony of L. nigcr. 

 Duriny 1909 and 1910 only nitjcr ^ $ came to maturity in the nest ; those, 

 therefore, that hatched in 1910 must have been from parthenogenetic eggs laid 

 by the niger ^ $ . Over a dozen of these latter were dissected, and found to 

 ''ontain no receptaculum seminis. Mr. Donisthorpe commented on the interest 

 of Mr. Crawley's experience, remarking that while it had formerly been supposed 

 that parthenogenetically laid ova produced only (J S , Mr. Crawley had shown, 

 and proved by dissection, that $ $ were capable of parthenogenetically produc- 

 ing $ y . The President observed that parthenogenesis was not unvisual in 

 sawflies, and mentioned that in one species, Crcesris I'arus, which had been 

 founded on a J specimen, the original specimen was the only J known. Dr. 

 M . Bui-r remarked that the common '• stick insect " is largely parthenogenetic 

 and has been bred parthenogenetically for more than twelve conseciitive genera- 

 tions. Mr. E. A. Cockayne, a melanic specimen of Lithosia deplana, J , taken 

 in Surrey last July. Mr. J. Piatt Barrett, some species of Sicilian butterflies 

 taken this year in contrast with corresponding British species, viz., Euchloe car- 

 damines and E. damone, Gonepteryx rliamni and G. cleopatra, Hipparchia semele 

 and var. algirica. Small Southern forms were also exliibited of E. cardamines 

 and Liptosia sinapis. Dr. Chapman, living larvae of Albulina pheretes, and a 

 living imago of Latiorina orhitulus, and observed that his former suggestion that 

 Albulina pheretes probably had a larva withoxit a honey gland was incorrect. 

 The larva of A. pheretes possesses a honey gland and fans. Owing probably to 

 the warm weather dvu-ing August and September, three of the larvae reached the 

 last instar, and he was therefore able to exhibit the larva in the 3rd, 4th, and 

 5th (or last) instars. L. orbit^ilus also afforded " forward " larva? this season, 

 and the living bvitterfly of this autumnal emergence which was exhibited left 

 the pupa on October 2nd ; but Vacciniina optilete, without exception, stopped at 

 the 3rd or hibernating instar. Mr. J. H. Durrant, two new British species of 

 Rhyacionia Hb. (= Retinia On. ; Evetria Hb.,Meyr.), viz. : — Rhyacionia purdeyi, 

 sp. n., taken among Scotch fir at Folkestone at the end of July, 1911, by Mr. W. 

 Purdey, a very distinct species intermediate between sylvestrana, Crt., and 

 duplana, Hb. ; and R. logaea, sp. n., from Forres, Scotland (W. Salvage and H. 

 McArthur), closely allied to duplana, Hb., and posticana, Ztst. R. duplana, Hb., 

 (J and $ . as also both sexes of R. posticana, were exhibited for comparison. 

 Mr. J. H. Dvu'rant, also eighteen specimens of Colias taken by himself in a 

 field of lucerne at Barcote, near Faringdon, Berks, from September 4r-10, 1892. 

 These comprised both hyale (2) and edusa (14) and two aberrations of the latter, 

 one of a very light orange colour (ab. helicina) and the other a fine ab. helice. 

 All the specimens of C. edusa were of a yellowish-orange tint. Mr. W. J. Lucas, 

 specimens of Sympetrum fonscolombii, a species very seldom taken in Britain, 

 and quite new to the Forest, at a pond in the South of the New Forest, on 

 August 4, 7, 8, 25 and 29, all but one being males. S. fonscolombii is usually 

 considered to be a casual visitor only to oiir shores ; but this case seems rather 

 to throw doubt on this siipposition, for the date is a late one, the insects on the 

 first visit to the pond were very fresh, one was a female, which looked oven 

 fresher than the males, and females seem seldom to join migratory swarms. 



