SOCIETIES; 135 



The New House. — The Treasurer reported that the contract for 

 41, Queen's Gate, was now signed, and announced the munificent 

 donation of £1000 by Dr. Longstaff towards the purchase. 



Further instances of the mimetic association between two 

 Euploeines and one Danaine in Fiji. — Prof. Poulton said that he had 

 Teceived from Mr. F. W. Simmonds many more examples of the 

 species tabulated in Proc. Eni. Soc., 1919, pp. lxix.-lxxi. Although 

 several other Euploeas were recorded from Fiji it was obvious from 

 Mr. Simmonds' captures that N'ipara elentho, Quoy, and its mimic 

 Deragena proserpina, Butl., were the dominant forms, and that next in 

 abundance among the Danainae, was Tirumala neptunia, Feld., which 

 flew with and mimicked the far commoner Euploeas. It was shewn 

 in the previous communication (p. lxxi.) that the female proserpina 

 was a better mimic of eleutho than the male ; and the series of 

 neptiima now received proved that here too the female Danaine 

 resembled the Euploeas more closely than the male, the suppression of 

 the greenish markings in the central and basal parts of both wings 

 being carried much further in most examples of the former sex than 

 in most of the latter. 



New Lepidoptera from the Island of Hainan. —Mr. G. Talbot, 

 on behalf of Mr. J. J. Joicey, exhibited numerous specimens of new 

 Lepidoptera from the island of Hainan. 



A Curious Cocoon. — Dr. Marshall exhibited a curious flattened 

 cocoon from S. Italy and the larva which had been extracted from it, 

 which superficially resembled a Hesperiid. In answer to his enquiry 

 the Rev. F. D. Morice stated that they were the larva and cocoon of a 

 saw-fly nearly related to Cimbex. 



Melanic Nolidae. — Dr. Cockayne exhibited a series of Nola 

 cucullatella, var. fuligmdlis, Steph., bred in June and July, 1920, from 

 Epping Forest larva?, together with type specimens from the same 

 locality, including the seven darkest. The percentage of melanic 

 specimens was 10%, 34 having been bred out of a total of 339. He 

 had bred 57 specimens of the hymenopterous parasite Meteorus fraqilix, 

 Wesm., from this species. He also exhibited a pair of N. confnsalis 

 type and a pair of var. columbaria, Image, from the same locality to 

 show the parallel melanic variation. 



New Lepidoptera from Madagascar. — Mons. F. Le Cerf exhibited 

 the following specimens : (1) a new species of Lymantria, with flesh- 

 coloured hindwings washed with black and grey ; (2) a pair of a new 

 and very large species of Dasychira, with black and white upper- and 

 yellow under-wings, another pair of which are in Mr. Joicey's 

 collection ; (3) a new species of Pinacopteryx belonging to the simaka, 

 Hoff., group, but quite without black markings except at the apex ; and 

 (4) a male Hypolimnas boliaa, L., from the interior of the island, east 

 of Manajany, with strongly marked discoidal patches and submarginal 

 spots. 



Probable Heteromorphism of Secondary Sexual Characters in 

 Trilochana. — Mons. Le Cerf. also made observations on a probable 

 case of heteromorphism in Aeyeriidae which he had discovered in Mr. 

 Joicey's collection. 



February 2nd, 1921. — The President announced that he had 

 nominated the following Fellows to be Vice-Presidents for the ensuin°- 



