EUSPHALERA; ETERUSIA. By Dr. K. Jouoax. 
31 
O. grandis spec. nov. (5f). 2: black; abdomen above with blue and beneath with green margins grandis. 
to the segments. Forewing above green; hindwing black, the apex metallic blue. Both wings beneath 
black, very slightly greenish; forewing before the distal margin with broad green-blue band which is widened 
before the 2. radial as far as. the apex of the cell; hindwing with blue submarginal spots from, the 2. median 
costad, also blue scales on the disco cellular. Length of the forewing 40 mm. — Kina Balu, North Borneo; 
t 2 in the Tring Museum. 
35 Genus: Euspfoalera gen. nov. 
Similar to Eterusia; the Irons only moderately projecting, not broader than the eye is high, not 
pointed above; 8. abdominal segment of the cf as in Chalcosia, produced above, not emarginate, forming a 
sort of cover over the circular open underside, the ventral part of the segment produced at each side 
into a long evenly curved pointed process. Antenna strongly pointed, the pectinations becoming gradually 
shorter distally (cf). Neuration similar to that of Eterusia, the 2. and 3. radials of the forewing quite short 
stalked or branching off from the cell. — New Guinea. Black species with yellow bands. 
E. regina Rothsch. (6a). Head, collar and underside of the body glossy green-blue. Thorax, a regina. 
large triangular basal area and a transverse band on the forewing reddish yellow and the distal margin of 
the hindwing yellow; the basal area wanting on the underside. — North-east side of British New Guinea. 
E. semiflava Rothsch. (6 a). Body green-black, head, thorax, breast and legs with strong green-blue semiflava. 
sheen, underside of the abdomen yellow-grey. Wings black, forewing from near the base to two-thirds 
and a variable band before the distal margin of the hindwing yellow. — Aroa River, British New Guinea. 
E. ligata Rothsch. (6a). As the preceding, middle of the breast yellow-grey like the underside of ligata. 
the abdomen. A yellow band across both wings. Perhaps only a form of the preceding species. — North¬ 
east side of British New Guinea. All 3 species in the Tring Museum; only cf cf known. 
36. Genus: Eterusia Hope. 
Frons very strongly projecting, but narrowed between the antennae, longer than broad, often twice 
as high as broad, in a side view the projection more than half as high as the eye is broad. Antenna in 
the 2 with long pectinations at the tip, the proximal ones short, in the cf the antenna with long pectina¬ 
tions. Wings long; in the forewing the 1. and 2. subcostals free, the 3.—5. stalked, the 1. radial from this 
stalk or from the cell, the 2. and 3. radials stalked, distance of the 1. subcostal from the upper angle of 
the cell greater than the distance of the 2. median from the lower cell-angle, the l. median usually much 
nearer to the angle of the cell than to the 2. median; hindwing with nearly straight costal margin, the 
short connecting vein (1. subcostal) between cell and costa far beyond the middle, upper and lower angles 
of the cell projecting about equally far, in E. distincta the lower angle projecting much farther than the 
upper, distance between connecting vein and upper cell-angle smaller than that between lower cell-angle 
and 2. median. 
The differentiation of this genus from Pidorus on the one hand and Chalcosia on the other is not 
easy, since forms occur which occupy intermediate grades of development between the morphologically 
typical species of the three genera. The difficulty will be overcome, after more accurate comparison of 
the morphology of these insects with regard to the genitalia, by the erection of a number of genera. — 
The larvae live, at least partly, polyphagous on various plants, as tea, roses, Polygonum, etc.; the lateral 
tubercles bear long bristles, the dorsal tubercles short ones. 
E. pulchella. A very variable, sexually dimorphic species, which with E. costimacula is distinguished 
from all the other species by the two median veins of the forewing being at a distance from one another 
towards the base and approaching very near together distally. In the cf the collar, in the 2 usually also 
the whole head red. Abdomen in the 2 also above ringed with white. Hindwing in cf and 2 with one or 
several brown-black spots before the distal margin. Afghanistan; Kashmir; North India; Burma; Tonkin; 
West China. — pulchella Roll. The cf occurs in 5 forms, connected by transitions, of which 3 have been pulchella. 
described as species. Ab. leptalina Roll. (= triliturata Walk.) (vol. II, 2 a) has on the forewing a yellow leptalina. 
basal streak, a transverse band, and at the end of the cell a round spot, the hindwing is yellow or white, 
with a black marginal band, the veins partly black. This is apparently the only form occurring in the 
western districts of the Himalayas, but it is also found further east. Specimens in which the abdominal 
margin of the hindwing is broadly black are ab. flavomaculata Moschl. In the second group of aberrations, flavo- 
which is common in the mountains of Assam, the basal streak is merged together with the transverse band tnaculata. 
into a triangular area; the hindwing is pure yellow or white, with black marginal band, beneath yellow, 
not whitish, at the distal margin. Finally in ab. olivascens Moore basal streak and band are separated and olivascens. 
the hindwing is black, with the exception of a costal streak and a small spot at the apex of the cell, which 
are yellow. The 2 is likewise variable. Forewing either yellow, mostly whitish between the veins, with a sexpundata. 
blue-black spot: ab. sexpunctata Walk., or with two spots: ab. octopunctata Moschl., or the wing between octopunctata. 
