GASTROPACHA ILICIFOLIA. 189 



the South London Entomological Society, February 13th, 1896, two 

 British examples belonging to the " Fry " collection, which were 

 completely banded, i.e., the area between the lines on either side 

 of the middle of the wing, and enclosing the median lunule, was 

 filled in to form a dark transverse band, ab. virgata, n. ab., whilst 

 another specimen had a yellow ground colour, ab. lutescens, n. ab. 

 Occasionally one finds pale grey examples with scarcely a trace 

 of red or dark grey in the ground colour =ab. pallida, n. ab., but 

 the chief aberrations are included in the following table : 



Ground colour red. 



1. Red, almost unicolorous— ab. unicolor-rufescens, n. ab. 



2. Red, with grey or purplish-grey outer margin to all wings, small whitish 

 discal area on forewings, and whitish transverse band to hindwings=:ab. rufescens, 

 n. ab. 



3. Red, with grey or purplish-grey outer margin to all wings, a large 

 whitish discal area on forewings, and transverse whitish band across fore- and hind- 

 win gs>-=zilicifoh 'a, Linn. 



Ground colour grey. 



1. Pale grey, basal two-thirds of forewings tinged with reddish, small whitish 

 discal spot, outer area of all wings grey or purplish -grey, hindwings only with 

 whitish transverse band^rab. grisea-pallida, n. ab. 



2. Dark grey, basal two-thirds of forewings tinged with reddish, discal area 

 somewhat paler, outer area of all wings dark grey, transverse bands of fore- and 

 hindwings whitish-greyzz:ab. grisea, n. ab. 



3. Dark grey, usual dark transverse lines almost obsolete, nervures reddish, 

 dark discal lunule small, outer margins of all wings dark grey ; the usual whitish 

 transverse lines obsolete, hindwings dark grey with faint median transverse shadezzz 

 ab. grisea-suffusa, n. ab. 



The only described forms of the species appear to be the two 

 following, both from the extreme east of the Palaearctic area : 



a. var. sinina, Grumm-Grschm., " Hor. Soc. Ent. Ross.," xxv., p. 465 

 (1891) ; Kirby, "Cat.," p. 824 (1892) ; Auriv., "Iris," vii., p. 168 (1894) ; Staud., 

 " Cat.," 3rd ed., p. 123 (1901). — Varietas pallidior, rosaceo-fulvescens. In montibus 

 ad Sinin reperta. 



j3. var. japonica, Leech, " Proc. Zool. Soc. Lond.," 1888, p. 628 (1888); 

 Kirby, "Cat.," p. 824 (1892;; South, "Ent.," xxxi., p. 231 (1898); Staud., 

 "Cat.," 3rd ed., p. 123 (1901). — 1 (?, 2 ? , coll. Pryer. The Japanese form of G. 

 ilici folia differs from the European type in size and colour. It expands 56mm., 

 and is pale reddish-brown with all the violet-tinged white markings well defined ; 

 there is, however, no character by which it can be specifically separated from G. 

 ilicifolia, therefore I propose for it the varietal name japonica. Yesso (Leech). 



South re-diagnoses this race {Ent., xxxi., p. 23 1) as "pale 

 reddish-brown, with well-defined white markings, which are tinged 

 with violet." The specimens in the Leech collection measure 

 (roughly) — $. 39 # 5mm., 2 54mm. The examples have the red 

 ground-colour brighter, and the paler parts of the wing more extended, 

 than in the European examples. 



Ovum. — (From dead specimens, one of which, however, seems 

 to have preserved both form and markings very completely, though 

 colour cannot, of course, go for much.) The egg is flat, i.e., has 

 three diameters, each different, and also is thinner and narrower 

 at one end. The length is almost i'5mm., the width nmm. to 

 i* 1 5mm., and the depth roinm, The top (micropylar end) is 

 larger than the other, whether the egg be viewed from the side or 

 from the edge. Viewed on the side, the edges are convex, and 

 the outline quite "egg "-shaped. It is o-gmm. across at a distance 

 from the nadir, that, at the same distance from the top, measures 

 I'omm. Viewed on edge the sides are seen to be flattened, 



