32 lODIS; COMOSTOLA. By L. B. Peotjt. 



come near veneta or insolitaria, and it shares with them the presence of brown spots (though weak) on the 

 pale fringes. But the hues are markedly dentate and each wing bears a white discal ring, somewhat as in 

 detracta. The costal edge of the forewing is ochreous, the lines are yellow-whitish, the underside much paler 

 than the upper, almost unmarked. 



33. Genus: loclis Hhn. 



Palpus moderate or rather long, third joint in both sexes distinct, smooth, in $ elongate. Antenna in 

 (J bipectinate. Hindtibia in ^ with hair-pencil, in both sexes with all spurs. Forewing with first subcostal 

 stalked, usually anastomosing with costal and occasionally with second subcostal, first median usually connate 

 or short-stalked. Hindwing rather long, with distal margin nearly always bent or angled at third radial, second 

 subcostal stalked, first median usually stalked. Scaling smooth, often more or less iridescent. Larva long and 

 slender, head deeply bifid, flattened anteriorly, prothorax with the usual points anteriorly, skin-surface rugose, 

 anal flap produced prominently behind. Pupa very slender, tapering, wing-cases rather long, distinctly veined, 

 cremaster long, slender, taperiiig, bearing some hooked bristles. The species are nearly all of small size. They 

 belong chiefly to India, but a few species have reached Europe, Japan, Formosa, etc. 



lactearia. 1. I. lactearia L. (= vernaria L. = aeruginaria Hhn.) (2 h). When preshly emerged from the pupa 



the ground-colour is of a beautiful delicate light green, but this colour is extraordinarily fugitive, and most 

 specimens which are met with, as well as all which have stood in a collection a few years, are almost or quite 

 white. The white postmedian line is on both wings almost entirely parallel to the distal margin, and not dentate. 

 The larva feeds on oak, birch and various other trees, and even lower growths, in August and September. The 

 pupa hibernates in a very slight cocoon among dead leaves, and the moth appears in June. It frequents chiefly 

 wooded country, and flies in the clearings or on the borders of the woods rather early in the evening, its 

 whitish colouring rendering it very conspicuous. When disturbed from its hiding-places by day its flight is 

 weak and vacillating, and never very long-sustained. Widely distributed in Europe and Palearctic Asia, 

 norbeHaria. reaching to Japan. — norbertaria Bossl. said to form a local race at Bilbao, is more thickly scaled and more 

 deeply coloured. 

 putata. I. putata L. {= putatoria L. = micantaria Esp. = alliata Hofn.) (2 h). Similar to lactearia but with 



the postmedian line dentate, and not parallel with distal margin. Moreover the forewing is slightly less elongate. 

 Foodplants, times of appearance and habits are nearly the same as in lactearia, but putata is a more local spe- 

 cies, being chiefly confined to central and northern Europe (excluding Britain), Armenia and Japan. Has been 

 recorded also for Korea and Amurland. According to Leech the Japanese specimens are rather darker than 

 the European. Unfortunately I have not access to any fresh specimens, and it is impossible to found a local 

 race on those which may have become discoloured through accident. 



praerupta. I. praerupta Btlr. (= steroparia Piing.) (2i) is similar to putata, but of a somewhat fuller, less eva- 



nescent green colour, the teeth in the white lines stronger, the postmedian of forewing broad at inner mar- 

 gin, the discal marks consisting of white rings. ^ antennal pectinations perhaps somewhat shorter than in 

 putata, palpus in both sexes shorter. Japan and Amurland. 



dentifascia. I. dentifascia Warr. (2i) is also similar to putata, but much larger and darker, being of a dull bluish 



green. It usually shows traces of a large darker cell-spot, at least on the hindwing. Japan and Korea. Flies 

 in June and July. 



sinuosaria. I. sinuosaria ieecA (2i). Pale green, the dentate postmedian expanding in the middle of forewing 



and near the inner margin of both wings, the antemedian followed and the postmedian preceded by a darker 

 green shade or line. Discal spots white, dark-margined. Under surface whitish, the forewing tinged with 

 green. Probably a form of the Indian species argutaria, but distinguishable by the mentioned expansions 

 of the postmedian, the large white spot between the second median and second submedian veins of fore- 

 wing especially conspicuous. Japan and W. China. 



34. Genus : Comostola Meyr. 



Differs from lodis more in shape and facies than in structure, the distal margin of the hindwing 

 being only very slightly bent at the end of the third radial, or strongly rounded, and the colour being bright 

 green, not translucent, usually with some red markings. The neuration is, however, characteristic in one 

 respect, the second discocellular of both wings curving outwards more or less strongly, so that the third arises 

 further, sometimes even much further from the base of the wing, the anterior half of the cell being there- 

 fore materially shorter than the posterior. The costal vein of the hindwing is formed almost as in the Aci- 

 daliinae, touching or anastomosing with the subcostal at a point only and then very strongly diverging, 

 whereas in lodis it seldom touches the subcostal, but usually remains approximated for a longer period, 

 though still not far. The genus is chiefly Indo-Australian, but a few species reach the outskirts of the Pa- 

 learctic Region. 



