294 GANGARID0PSI8; LOPHOCOSMA. By Dr. K. Grunberg. 



oped; before the margin a dark curved spot extending from the apex to vein 4 and being proximally edged 

 with pale grey, especially so in $. Hind wing pale grey-brown with darker distal margin and anal angle. Both 

 wings with blackish fringe-spots. — Southern Ussuri district and Japan. 



13. Genus: Cnuiig'aridopsis gen. 



nov. 



The type-species of this genus has only lately been described by Wileman as Gangarides citrina, from 

 Japan. However, the insect has nothing in common Avith Gangarides apart from a very superficial and not 

 at all striking similarity in markings and colouring. 



Antennae of both sexes with long pectinations, which are only slightly shorter in 9 than in (^ and decrease 

 in length only close to the apex; basal segment with a short dense brush of hair. Palpi rather large, obliquely 

 u])turnod to the height of the frons, end-segment short. Proboscis feebly developed. Eyes hairy. Thorax woolly, 

 with a high, pointed crest of scaling, which is vertical in front. Abdomen smooth-hairy, extending hardly y^ 

 beyond the anal angle of the hindwing. Legs with long woolly hair, mid tibia with end-spurs, hind tibia with 

 strong middle and apical spurs. Forewing rather broad, costal margin slight, convex at the base, then almost 

 straight to the apex, the latter pointed, distal margm moderately steep, curved and strongly undulate, gra- 

 dually curving into the slightly convex smooth hind margin; veins 6, 7, 8, 9 on a stalk from the upper 

 angle of cell, 10 from cell, at point of origin of 7 anastomosing with the stalk of 8, 9, a long narrow areole being 

 formed, in the $ before me the fork of 8, 9 so close to the costal margin that it has entirely disappeared 

 in the right wing. Hindwing broadly and evenly rounded; veins 6 and 7 stalked. 



The high thoracical crest alone, quite apart from the different wing-contour, is sufficient to distinguish 

 the present genus from Gangarides. It does not bear any very close affinity to any other Palearctic Notodontid 

 and is perhaps best placed near Lophocos ma, from which it essentially differs, however, interalia in the struc- 

 ture of the antennae. 



The only known species is 



cilrhia. G. citrina Wileman (48 h). Head and thorax brownish vermilion, the abdomen more light grey-brown. 



The brush of hair at the base of the antenna white. Forewing vermilion for the greater part with a slight rust- 

 coloured suffusion, costal margin and a more or less extended area beyond apex of cell light grey-brown; a small 

 white basal dot and 2 larger subbasal dots one above the other at the hind margin of the cell and on vein 1 

 white, above the anterior dot a small white dash at the anterior margin of the cell; from the costal margin before 

 the apex to the hind margin a nearly straight, narrow, red line which is edged with greyish white on the outer 

 side; an indistinct red subbasal transverse line runs across the white subbasal spots; discal spot likewise some- 

 what darker than the ground. Hindwing pale grey-brown with a red suffusion. • — Japan. 



14. (icmis: JLophoeosuia Stgr. 



Antennae of (^ pectinate with the branches gradually decreasing in length to apex, of $ stout setiform ; 

 basal segment with a short brush of hair. Palpi upturned to the centre of frons, with a short, truncate end- 

 segment. Proboscis very thin and short. Eyes with short but dense hair. Thorax with an exceptionally large 

 high crest of scaling, which is vertical in front. Abdomen extending I/a beyond anal angle of hindwing. Forewing 

 elongate, the apex slightly rounded, the distal margin moderately oblique and slightly curved, the hind margm 

 almost straight. Hindwing nearly semicircular. Distal margin of both wings slightly undulate. In forewing 

 veins 7, 8, 9 stalked, together witli 6 from upper angle of cell, 10 from cell, at point of origin of 7 anastomos- 

 ing for some distance with the stalk of 8, 9, forming an elongate areole. In hindwing veins 3 and 4 from lower 

 angle of cell, 6 and 7 on a long stalk, 8 free. Hair of femora and tibiae very long and dense; mid tibia with 

 short apical spurs, hind tibia with middle and apical ones. - — Only 1 East-Asiatic species is known of this 

 genus. 



airiplaga. L. atriplaga Stgr. (46 c). Head, collar and the very high median crest deep dark brown, thorax grey, 



abdomen grey-brown. Wings grey-brown; forewing light grey along costal margin, with a large, intensely 

 black discal spot which extends to the costal margin and is continned to the hind margin as an indistinct black 

 line; near the base 2 smaller black costal spots, at each of which commences an incomplete blackish dentate 

 line; beyond the discal spot a row of black vein-spots distally edged with white, the row beginning with a costal 

 spot, between this row and the distal margin a diffuse whitish submarginal dentate band. Larva on Corylus 

 and Ostrya. — Amurland, southern Ussuri district (Vladivostok, Askold), Japan, often not rare. 



