126 PIDA; NUMENES; HIMALA; LYMANTRIA. By Dr. E. Strand. 



15. Genus: Pida rValk. 



Facies and venation about as in Dasychira. Palpi upturned and extending beyond the vertex. Pectina- 

 tions of antenna of (J long, of $ short. Legs with thick long hair. Only three species, of which only 

 one concerns us. 



slrioipennia. P. strigipenilis Moore (20 e). Forewing yellowish white, striated with black, there being least 



striae in the postmedian costal area. Discocellular spot black. Hindwing orange-yellow, striated with 

 black at the apex. Head and thorax dark reddish brown. Abdomen orange-yellow. Metathorax with black 

 tuft of hair. Antennae black with whitish sides of the shaft. ,^ 46, $ 55 mm. — From Chang-yang; 

 also widely distributed in India. 



16. Genus: IViiiiieiics Walk. 



Larger, conspicuously marked moths; forewing subtriangular, sharply angiilate at the apex, with 

 convex costal margin and ahnost straight distal margin. Hindwing extending considerably beyond the 

 alidomen. Palpi obliquely u])turned; antennae of both sexes with long pectinations. Venation as in D<tsy- 

 chira, veins 6 and 7 of hindwing from the cell. An Indian genus with about 6 species. 



disparilii', N. dlsparills St(ji-. (20 c). ^i Forewing black, with olive sheen and a straight yellowish white 



obli(]ue band extending from the middle of the costal m.argin to the anal angle and enclosing a dark spot 

 at its posterior end ; the veins light. Hindwing with a broad white transverse band extending from the 

 middle of the inner margin to the apex of the inner margin, but without reaching the latter. Beneath, 

 the white markings are slightly broader, but the veins of the forewing remain black. Forewing of $ proxi- 

 mally with foxir light transverse bands, the distal ones of which iniite just before the anal angle, while 

 the proximal one is only half as broad as the others. Hindwing and abdomen light orange-yellow, the 

 former with a large transverse black submarginal spot constricted in the middle. Below, both wings of 

 the $ are yellow with two black spots on each, o ^"^ ^o ^6, 2 51 to 60 mm. Amurland, Jajjan, Central 

 separata, and Western Clhina, usually not common. — separata Leech is distinguished in the (J from true dispa- 

 rilis in the jrellowish white transverse band being united with the apex of the wing by a band; there 

 is also a white spot near the base of the costa. Hindwing without the white central spot. In the 5 the 

 basal band of the forewing is broader and the hindwing bears two black spots instead of a stripe. Both 

 sexes larger than the main form.. ^ 58, $ 82 mm. (!hang-yang in Cliina. A $ form of separata is distin- 

 guished by tlu; basal band of the fort^wing being interrupted in the middle and by the very indistinct dis- 



^i.«7«(ra/u. coccllular spot on the underside of the hindwing; from Shiobara in Japan (Coll. Seitz): ab. biseparata 

 nov. (lb. (22f). — Leech has described a ^ from Ohoyama in Japan inider tlie nani,e of Lynmntria albof(i.sciii, 

 which he afterwards himself declared to be a form, of disparilis, but which is very probably a separate 

 species. It is larger (56 m.m), the veins of the forewing not lighter than the ground-colour, the light band 

 of the foreM'ing quite w'hite, with parallel sides, broader than in disparilis and not enclosing a dark spot 



albojascia. posteriorly; hindwing uniformly white. At present this albofascia (20c, 22 e) may remain with dispa- 

 rilis united as a variety. — The larva lives on beeches, has two brush-like black tufts of hair on segments 

 4 and 5, as well as large warts with white hairs, and a bladder-like swelling above on segment 10. 



17. Genus: Hiiiiala Moore. 



Only one species belongs to this genus. It closely resenibles the Notodontid Gazalina and is often 

 placed near the latter, while Gazalina was hitherto placed with the Lymnntriidae. Palj)i slender and porrect. 

 Antennae with long pectinations and hairy basal segment. Areole absent. 



argcntca. H. argeiltea Walk. (21 d). Head, thorax and abdomen white, fore^ving silvery white, with black 



veins and dark m.argin. Hindwing white, veins black in the apical half of the wing, marginal line black. 

 cJ 44, $ 54 mm. India, also in the North-Western Himalayas. 



2. Group: Inareolatae. 

 At the head of this group stands the large genus: 



18. Genus: I<yiiiaiitria Hb7i. 



Medium-sized or large moths which are throughout light in the $ sex and often very bright in colour, 

 being remarkable for their sexual dimorphism and containing our most noxious insects. Wings of $ some- 

 times aborted, but on the whole normally developed. Antennae of (J with long pectinations, in the $ 

 with shorter ones or dentate; hindtibiae as an exception with only one pair of spurs. Wings of $ more 



