MICRARCTIA. ]]y Dr. A. Seitz. 83 



strongly convex, moderately large; palpi porrect, of mediuni length, and moderately hairy. Antennae in 

 hoth sexes slender, filiform, simple. Thorax above with rather long, but not very rough hair, black with 

 dull yellow collar. Legs of medium length, all femora incrassate in the middle, the hindtibiae strongly 

 hairy on the outer side, with a pair of long spurs beyond the centre and very short ones at the apex. 

 Forewing with the inner angle completely effaced, l)lack-brown, a broad ivory yellow costal stripe from 

 base to two-thirds; liindwing bright red or yellow, with strong discocellular spot and elongate black spots 

 before the apex and the anal portion of the outer margin. The venation (which is very constant in 

 Arctiids) does not differ much from that of Spilosoma, Phragmntohia, etc. — The species of this genus, 

 two in number, inhabit Central Asia and have only become generally known quite recently; nothing is as 

 yet known of the early stages; they are said to inhabit Alpine regions, and hence the generic name : dgoyxoc. 



0. urania Pmuj. (16 h). Abdomen black, yellow laterally and at the apex, forewing sooty black- urania. 

 brown with the costa broadly ivorj^ yellow from the base to tAvo-thirds, before the outer margin wavy 

 markings of the same colour, sometimes dulled. Hindwing bright yellow with black spots at the apex 

 of the cell and before the outer margin. North of Corea, at the Aksu Pass, in Jlay and June. The 

 original specimens in Herr Piingeler's collection. 



0. tancrei .S'^(/r. (16 h). Abdomen black-brown, red laterally and at the apex. Forewing dark brown, iancrei. 

 with the costa ivory yellow to two-thirds; before the apex a dull white band runs to the inner angle; 

 hindwing red, slightly tinged with yellow in the outer area. Underside very like that of urania. From the 

 Issyk-kul, caught in May (Coll. Nassauer, Pungeler, Staudinger). 



49. Genus: Micrarctia gen. nov. 

 This group, which is closely allied to Arctia, onlj' contains small forms, which are especially 

 distinguished from the stout Arctia, whose abdomen is often club-shaped, by the slender build of the 

 abdomen of the (J and also by the lesser bulk of that of the $. Hampson places them with the genus 

 Phr((gmatobia on account of the similarity in venation: Leech even described one form as Nyctemera. 

 The head is rather large, with broad tufted frons; eyes small; palpi slender, with tufts of hair, porrect; 

 antennae of (^ with long pectinations, or even plumose. Thorax stout, short, with moderately long hair, 

 and bright markings. Legs slender, tibiae not visibly thickened, hindtibia with only the end-spurs, tibiae 

 and tarsi whitish. Abdomen much slenderer than in Arctia and Phragmatobia, brightly coloured laterally 

 and at the apex. Forewing triangular, dark reddish brown, with yellowish white streaks, hindwing moder- 

 ately large, scarlet, only al)erratively yellow, with black spots. The genus contains a large number of 

 forms, which, however, proliably Ijelong to relatively few species, and is confined to temperate Asia. 



M. trigona Leech (16 i). Forewing dark reddish brown; from the base and above the inner margin Irigona. 

 broad yellow rays, which merge together with a W-shaped spot of the same colour in the outer area. 

 Hindwing red with lilack basal streaks and marginal spots. Li ab. nigra Leecli the light rays of the nigra. 

 forewing are reduced and the hindwing is quite black. Ta-tsien-lu in West China. 



M. y-albula Oherth. (16 i). Smaller, the markings of the forewing less confluent, small white spots y-albula. 

 at the costa; hindwing dull reddish yellow, blackish at the base. Here also occurs a form with the hind- 

 wing almost entirely black, the light Ijands of the forewing being reduced; this is ab. lugubris Ohertli. lugnbris. 

 In ab. rubida Lccc/t the liindwing is scarlet instead of reddish yellow. From West China. rubida. 



M. sieversi (/r.-6'r.s/(. (16 i). On the forewing the yellowish markings are isolated, but slightly more sievcrsi. 

 numerous, and the longitudinal rays in the basal area are irregular. The black marginal spots of the 

 red hindwing are large, rectangular. Tibet; the specimen before me (from coll. Pungeler) is labelled 

 Kuku-Nor. 



M. rupicola Gr.-Grsh. (= glauca Stgr.) (16 k). According to the figure in Romanoff's Memoires rupicola. 

 (IV, plate 19. fig. 6) this moth, which is unknown to me in Nature, is yellowish grey on the forewing, with two 

 regular rows of black spots in the outer area and wedge-shaped rays at the base. The dull-yellow hind- 

 wing bears dark basal streaks, a discocellular lunule and two disc-shaped spots at the apex and above 

 the anal angle. From the Transalai district. 



M. postflavida Hamps. Tliis moth is also unknown to nie in Nature. It was described in 1894 poslflavida. 

 from a ^ fi'om Kashmir and is very small, not being larger than the preceding species". Head, thorax 

 and abdomen grey-brown, the latter yellowish at the apex. Forewing very dark rusty brown with diffuse 

 whitish markings; hindwing orange, with dark dusting, dark central lunule, and broad blackish marginal 

 jjand. 



M. glaphyra i/c. (16 i). Forewing dark reddish brown, with deep black angulate spots, standing glaphyru. 

 in creamy- wliite dentate markings; liindwing deep orange-red. From Ala-tau and Ferghana. — The form 

 manni AIpli., from Tian-Shan and Issyk-kul, which has lately been imported in large numbers, has the manni. 

 hindwing scarlet. Specimens of this form in which the creamy-yellow markings of the forewing are tinged yQg„f,fi„ 

 with rose-red are called ab. rosearia 8tgr.\.\. (16 i), and those in which they are reduced is ab. tristis -S'/^r. iristis. 



