502 BEITSIH LEPIDOPTEEA. 



(1895); Meyr., "Handbk.," p. 321 (1895); Tutt, "Brit. Moths," p. 59(1896); 

 " Proo. Sth. LoncT. Ent. Soc," pp. 1-11 (1898); Barr., "Lep. Brit.," iii., pp. 8, 9 

 (1896); Eeutti, " Lep. Bad.," 2nd ed., p. 57 (1898); Dyar, " Can. Ent.," xxx., pp. 3, 

 6 (1898); Grote, "Illus. Zeits. fur Ent.," iii., p. 71 (18D8). Lanestrus, Haw., "Lep. 

 Brit.," p. 124, no. 84 (1803). 



Oeiginal description. — Phalaena (Bombyx) elinguis, alis reversis 

 ferrugineis ; striga alba ; superioribus puncto basique albis. Habitat 

 in Tilia, Pruno spinosa, Salice. Larva pilosa, nigra : segmento singulo 

 punctis 3 albis inter maculas 2 rubras. Anus Phabenas valde lanatus 

 albidus (Sys. Nat., xth ed., p. 499). To tbis description Linne adds: 

 "Anus Phalaenae valde lanatus albidus, ac si esset P. rubi Mas. 

 Alee striga alba punctoque albo, insuper basi puncto albo" (Sys. Nat., 

 xiith ed.,p. 815). 



Imago. — Anterior wings ratber tbinly scaled, deep rust-red, with a 

 slightly angulated white transverse line beyond tbe middle, a central 

 white spot, and a white basal mark of varying size and shape (linear 

 to oval) not quite reaching the costa, the outer margin of wing (beyond 

 transverse line) grey. Posterior wings grey with a paler transverse 

 median shade. 



Sexual dimoephism. — $ . The wing expanse extends from 

 31'25mm.-36mm. The antennas strongly pectinated, the wings rather 

 more densely scaled, and with more grey scales on the outer margin 

 than the female. ? . 36"5mm.-45mm. The antennas only finely 

 serrated ; the wings more thinly scaled, usually rather redder (and 

 less grey on the outer margin) than in the $ ; the anus with a large 

 thick whitish-grey woolly tuft, from which the hairs are obtained with 

 which the eggs are covered. 



Gynandeomoephism. — Gynandromorphous examples appear to be 

 rare. The following are the only references we can discover : 



a. Has the appearance of a small ? ; the anus decidedly ? but the antennae $ . 

 Taken at large at Breslau (Wocke, Entom. Miscell. Breslau, 1874, p. 73). 



j3. A hermaphrodite of Bombyx lanestris, the abdomen of which was provided 

 with a strong tuft of hairs, was put aside as a cripple till the breeding of a gynandro- 

 morphous Saturnia pavonia, caused closer attention to be given to it. It emerged 

 in the autumn of 1893, from exchanged pupae. Almost all the examples of this 

 brood emerged as cripples (Caspari, J.-B. Nass. Ver. Nat., xlviii., p. 178). 



7. Left side c? , right side ¥ , both as to wings and antennae ; the right wings 

 20mm. in expanse, the left 16mm. ; the thorax and abdomen divided medially into 

 a lighter e? and darker ? coloration; abdomen ? in form. Bred. In coll. 

 Wiskott (Wiskott, Fistschrift Ver. Schles. Insectcnkunde, p. 28, pi. iii., fig. 12). 



5. Bight side entirely 3 , left side ? ; right antenna pectinated, <? , left 

 antenna with short teeth, ? . The right wings about 3mm. shorter and much 

 more dusted with white than the left. Abdomen ? in form, carrying on anus the 

 wool of the ? . Bred by E. Maurer, Coburg (Maurer, Insekten Borse, 1895, p. 30). 

 e. Left half ? , right half j . In coll. Staudinger. Stdgr. in litt. (Schultz, 

 Illus. Wochen. Ent., ii., p. 413. 



Variation. — The ground colour of this species extends from an 

 almost complete ashy-grey to a rather bright rusty-red, various inter- 

 mediate stages being frequently met with. (This has been noticed, 

 antea, p. 500). Specimens with the central spot absent (ab. obsoleta, 

 n. ab.) are rarely met with. A very remarkable form is described by 

 Edmunds as having " a large white diamond- shaped spot near the 

 costa in the middle of the forewings. A specimen of this aberration 

 was caught at rest at Worcester, February 6th, 1860 ; on the same day 

 a similar one was bred, and on the following day another. The three 

 moths vary but little in these spots and are almost destitute of any 

 other markings." This might well be named ab. qiiadrangulata. It 



