xir, D, 4 Wileman: Japanese Lepidoptera 233 



Wilson ^ describes the larva of Ilema griseola Hiibner as 

 follows : 



Larva. About ten lines long, and nearly black, the segmental divisions 

 deeply cut; each segment has a number of black velvety tubercles, and 

 each of these bears a tuft of short hairs; along each side of the back is 

 an interrupted orange-colored subdorsal line; these lines approximate and 

 then widen on segment 2, 8, and on segment 12 take the form of two orange 

 spots; the ventral area is rather paler than the dorsal; legs and claspers 

 the same; head small, black and shining. 



Seitz " describes th'e larva of Ilema griseola Hiibner as follows : 



Larva black-grey, with reddish-yellow spots behind the head, from seg- 

 ment 3 backwards two reddish-yellow longitudinal stripes dorsally [not 

 subdorsally as in Wilson] between which there is a black dorsal line. Until 

 the beginning of June, on lichens on trees. Pupa glossy reddish brown, 

 in a cocoon of moss or lichen. The moths in July and August, often com- 

 mon in Central Europe, and in Amurland (East Siberia) on tree-trunks 

 and the branches of suckers. 



Seitz does not say that the longitudinal reddish yellow dorsal 

 stripes are interrupted as they are in my figure. Wilson says 

 "an interrupted orange-colored subdorsal line." 



Pupa. — Contained in a webbed cocoon spun on lichen (Plate 

 I, fig. 7). 



Miyake ' states of the Japanese forms segrota and adaucta 

 that the larvs are to be found on sasa, bamboo grass, and that 

 they possibly feed upon that. I think, however, that they prob- 

 ably collect there to sun themselves, crawling up from lichens 

 near at hand, as lichen is the food plant of griseola in Europe, 

 and my larva was found on lichen. 



Imago. — Leech ^ remarks : 



The species [griseola] is a very variable one. The descriptions of adaucta 

 and segrota apply rather to individual specimens than to constant forms. 



Ilema adaucta and /. segrota are the forms of /. griseola occur- 

 ring in Japan. 



In the Far East the species varies considerably. In Amurland it is 

 much smaller and the ground color of the forewing is so light that the 

 costal stripe only slightly contrasts with it; this is vetusta Wlk. (—omu- 

 rensis Stgr.). ^grota Butl. {^adaucta Butl. ; cinerea Pouj.; lenta Leech) 

 on the other hand, is larger than European griseola and the forewing 

 darker, the hindwing, which is yellow above, contrasting sharply with it; 

 from Japan." 



'Larvas of British Lepidoptera (1880), 59, PI. 10, fig. 16. 

 'Seitz, Macrolep. Faun. Pal. (1910), 2, 65. 

 'Tokyo Zool. Mag. (1910), 22, pt. 260, 376. 

 ' Trans. Ent. Soc. London (1899), 181. 

 "Seitz, Macrolep. Faun. Pal. (1910), 2, 65. 



