28 



BRITISH LEPIDOPTERA. 



Fumea nitidella from what he believed to be unfertilised eggs ; the 

 evidence, however, is here very unsatisfactory. Newman (Entom., ii., 

 p. 28) records larvae from unfecundated eggs laid by a female Phiyalia 

 pedaria. These in due time became pupae, but no imagines were 

 reared. Eaton (Entom., hi., p. 104) records an instance in which 

 parthenogenetic progeny of Orgyia antiqua were reared to the third 

 generation. The details are : — First generation. — From a pupa found 

 at Venn Hall, Sherborne, Dorset, in the autumn of 1864, a female 

 imago emerged, which laid eggs. Second generation. — Of the above- 

 mentioned eggs, ten hatched in the spring of 1865, but of these larvae, 

 one only, the largest from the first, came to maturity ; this produced 

 a female which laid eggs. Third generation. — Five larvae from these 

 eggs attained the pupal state of development, and one of them pro- 

 duced a female imago by the middle of October. No further details 

 are given. 



It may now be well to summarise some of the records under the 

 various families to which the species belong: — Solenobiides. — Solenobia 

 inconspicuella, vide Ent. Bee, vol. vi., p. 5, where it is stated that par- 

 thenogenesis in this species is well known. 8. clathrella, mentioned 

 by Newman in Phy's. Characters in Classif., 1856. 8. lichenella, Wocke 

 anu Reutti (teste Siebold). 8. triquetrella, Siebold's experiments on 

 this species, and 8. lichenella, have already been detailed, see Ent. Rec, 

 v., pp. 292-3. Talaeporia pseudobombycella, Freer, Ent. Rec, vi., 

 p. 89, very many parthenogenetic larvse obtained. Psychides. — Apte- 

 rona crenulella (Psyche helix), was experimented upon by Siebold, 

 and dissections of the parthenogenetic females were made. At this 

 time, the male of this species was unknown. Canephora unicolor 

 (Psyche graminella) and Sterrhopterix hirsutella (P. fuscaj are both 

 mentioned in Newman's list. Fumea casta (nitidella) rests as a par- 

 thenogenetic species, on Douglas' unsatisfactory evidence. Notodon- 

 tides. — Diloba caeruleocephala, Bernoulli, 1772, records the hatching of 

 unfertilised eggs. Notodonta dictaeoides. There is a record made by 

 Alderson, as to the probability of this species being parthenogenetic, 

 Entom. Rec, vol. i., p. 96. Centra vinula. Alderson notices unfertilised 

 eggs of this species hatching, Ent. Rec, i., p. 95. Liparides. — 

 Porthetria dispar, Carlier (teste Lacordaire), records three generations 

 without copulation having taken place. Pearce, Ent., xii., p. 229, 

 obtained larvae May 6th, 1879, from unfertilised eggs. Weijenbergh, 

 Archives Neerlandaises, v., 1870, pp. 258-264, records that fertile eggs 

 of autumn, 1866, hatched April, 1867, and produced imagines, August, 

 1867 ; from these, without fecundation, eggs hatched April, 1868, and 

 imagines appeared August, 1868 ; from these, again, without fecundation, 

 eggs hatched in April, 1869, imagines in August, 1869 ; from these, 

 without fecundation, eggs did not hatch in spring of 1870, but dried up. 

 Laelia coenosa. Brown, Entom., v., p. 395, an isolated female emerged, 

 laid more than 50 eggs, which duly hatched and were sent to Hellins. 

 Orgyia antiqua. Eaton, Entom., iii, p. 104, data already given. 

 O. gonostigma and Psilura monacha. Mentioned by Newman, Essay 

 Phys. Charac, etc. Arctiides. — Arctia caia, A. villica and A. casta, 

 are mentioned by Newman in his Essay Phys. Charac Spilosoma 

 mendica. Bowell, Ent. Rec, i., p. 174, obtained a batch of ova from 

 female just out of pupa case, of which 15 hatched. Noctuides. — 

 Anarta myrtilli. Watson, Entom., xv., pp. 261-2, records putting a 



