302 SEMIDONTA; ALLODONTA. By Dr. K. Grunberg. 



gigantea. N. gigantea Bull. (46 b). Besides the large size and the broad forewiiig easily recognized by the dark 



ground-colour and the large yellow costal spot on the forewing. This wing blackish grey or more bro^vnish, 

 with a yellow subbasal band and a large yellow spot in the middle of the costa extending beyond the apex 

 of cell; beyond the middle a whitish costal spot. — Japan. 



grummi. N. (?) gTummi Christ. (-i^c). Forewing grey, without tooth of scales at the hind margin, with a blackish 



dentate band close beyond apex of cell and a postdiscal transverse row of black vein-dots ; fringe likewise with 

 black dots. Hindwing whitish, the anal margin blackish. ■ — Transcaucasia (Ordubad). Only the $ known. It 

 is doubtful if the species belongs to Notodonta. 



cinerea. N. cinerea Butl. Represents in Japan the Oriental N. moorei Hamps., which is figured in vol. X. Fore- 



wing and thorax ashy grey, discal spot as well as the other markings pure white. • — Japan. 



trachitso. N. trachitso Obertk. (49 a). Size as in N. tritophus. Forewing brownish grey with a slightly slaty tone, 



the markings dark red-browai or chocolate, viz., the prediscal band diffuse, the postdiscal one and the rather 

 broad submarginal band sharply defined, discal spot very dark brown with light edge. Hindwing grey, the 

 marginal half lighter, yellowish, with a dark submargmal band. — Tibet; Japan. 



pira. N. (?) pira Druce. Head and thorax grey-brown, adomen pale grey. Forewing dark greyish brown, 



beyond the centre with a pale grey transverse band which is divided near apex of wing by a dark brown spot; 

 marginal line black, fringe dark brown. Hindwing dull whitish, apex and distal edge darkened. — Central 

 China (Hunan). 



lativiiia. N. lativitta Wileman. This and the nest species, which are unknown to us, have only lately been de- 



scribed. Body greyish brown, collar andpatagia with blackish edges. Forewing light grey-brown, variegated 

 with whitish scaling, a broad reddish yellow longitudinal stripe on the jjosterior half; subbasal, pre- and post- 

 discal dentate bands dark brown, especially pronounced at the costal margin; near the margin a row of dark 

 broAvn submarginal spots placed in a broad whitish stripe which commences at the apex; discal spot brown with 

 whitish border, above it a black-brown costal spot; marginal line dark brown. Hindwing whitish, inner margin 

 brownish to near apex, anal margin yellowish. — Japan (Hondo). 



basilinea. N. basllinea Wileman. Like the preceding insect only lately described. Body and forewing dark greyish 



brown; subbasal and prediscal dentate bands black, distinct only in the anterior half, edged with yellowish 

 brown on the distal and proximal sides respectively; postdiscal band more distinct, black, running in a curve 

 to the tooth of scales of the hind margin, and edged with a yellowish tone on the outer side; the distal area of 

 the wing extended yellowish brown, traversed by the black veins; the veins are also blackish in the basal half; 

 discal spot dark, with yellowish border; fringe with blackish spots at the vein-tips. Hindwmg light grey- 

 brown, dark at the apex, traversed by a whitish dentate band, marginal line and marginal spots dark brown, 

 anal margin likewise darkened. — Japan (Hondo). 



22. Genus: ^ieiiiidoiita Stgr. 



Closely related with Notodonta and the following genus Allodonta ; differs from the former in the thorax 

 bearing an erect crest of scales, and in the markings of the wings, and is distinguished from Allodonta by the 

 (J-antenna being long-pectinated, the branches very gradually decreasing in size to the tip. 



biloha. S. biloba Oherth. (45 d). Body greyish brown. Forewing dark brown from the base to the dentate 



postdiscal band, the hindmarginal area occupied by a long yellowish grey spot which is bordered with light 

 grey and distally divided into 2 lobes; discal spot blackish; outer area of wing whitish grey, beyond the post- 

 discal line a row of black vein-dots, near the margin a dark band. Hindwing greyish brown, with a slightly 

 paler median band. — Southern Ussuri district. 



Hcheni- S. lichetiicolor Oherth. (48 h). Essentially larger than S. biloba; forewing dark grey-brown, the basal 



CO or. g^pgg^ darkest, the distal marginal area lighter, the disc extended whitish grey, particularly at the costal margin, 



at apex of cell a large spot, the postdiscal band composed of a double, black, lunate line, which does not quite 



reach to the hind margin and is distally sharply edged with white; the tooth of scales at the hind margin large 



and broad. Hindwing light greyish brown, margin dark brown, anal angle somewhat blackish. ■ — Ta-tsien-lu. 



23. Genus: Allodonta Stgr. 



Antenna of ^ pectinate to beyond centre [hucodera), or bearing fasciculate cilia to the centre and 

 having the apical half setiform (plebeja). Palpi upturned to the middle of the frons, with short end-segment. 

 Thorax with a high erect crest of scales. Hind tibia with two pairs of strongly developed spurs. 



Only two species are so far known, both from East Asia. The genus is easily distinguished from the 

 closely allied genus Notodonta by the conspicuous thoracical crest, from Semidonta by the structure of the ^- 

 antenna. 



