RECENT LITERATURE. 143 



A paper by Mr. H. St. J. K. Donisthorpe, entitled " Some Associa- 

 tions between Ants of different Species," was read by the Hon. Sec. 

 The paper fully described all that is known of these associations, and 

 specially dealt with the relationship between species of Formicoxenus, 

 Anergates, and Wheeler iella. A vote of thanks to the author was 

 carried unanimously, and a discussion, showing a general interest in 

 the subject, ensued. Exhibits were as follows: — A box of Micro- 

 Lepidoptera by Mr. A. W. Boyd, collected in Lancashire and 

 Cheshire during 1912, recording many new localities for species 

 already on our list.— Mr. W. Mansbridge showed a buff male of 

 Arctia mendica from Co. Cork. — Wji. Mansbridge, Hon. Sec. 



The Manchester Entomological Society. — Meeting held in 

 the Manchester Museum on Wednesday, December 4th, 1912, Mr. 

 W. Buckley in the chair. — Mr. B. H. Crabtree exhibited Aplecta 

 nebulosa from Argyll and the New Forest, and the three forms from 

 Delamere. — Mr. J. H. Watson gave a lecture on " The Parnassiinse, 

 an Ancient Group of Butterflies," which was illustrated by the exhibi- 

 tion of his collection. The headquarters of the family is in Tibet, 

 which more nearly approaches the conditions of the glacial epoch 

 than any other country. The family is a very ancient one, and an 

 allied form is found as a Miocene fossil. Mr. Watson exhibited 

 twenty-two out of thirty-two species recognized by Mr. Eothschild, 

 and another (P. delius) which he considered should be raised to 

 specific rank. 



January 8th, 1913. — Mr. W. Buckley gave the Annual Presidential 

 Address " On Collecting and Rearing Acidalia contiguaria, some 

 Personal Experiences." In the first place, he gave his experiences 

 in the field in N. Wales, with the insect in all its stages. Then he 

 referred to its breeding in captivity ; 95% of the larvae survive the 

 winter if dried knot-grass be used for hybernation. Finally, he gave 

 full details of his experiments in breeding the light and dark forms. 

 After breeding for three generations from the wild insects he made 

 the four different pairings possible between the light and dark forms, 

 with the following results : — (i) Light $ x dark <? . One brood of 

 sixty-nine imagines had 68-7% dark and 31-2% light; another brood, 

 75% dark and 25% light — practically Mendelian proportions, the light 

 form being the recessive, (ii) Dark ? x light $ . Never fertile, 

 though a number of pairings were made, (iii) Dark ? x dark $ . 

 All dark for two generations, (iv) Light 2 X light $ . All light. — 

 Mr. J. H. Watson exhibited two Parnassius apollo from Mount 

 Ararat and the Altai Mountains. — Mr. B. H. Crabtree showed 

 canary-coloured specimens of Pieris napi bred from Donegal by 

 Mr. Head, of Scarborough.— A. W. Boyd, M.A., Hon. Sec. 



RECENT LITERATURE. 

 Psyllidarum Catalogus. By Dr. G. Aulmann. Pp. 92. Berlin : 

 W. Junk. 1913. 

 This is a synonymic catalogue of the Psyllidse of the world, so far 

 at least as these minute homopterous insects have been made known 

 to science. 



