82 
ERESSA. By Dr. A. Seitz. 
■s nblutea. 
decipiens. 
meeki. 
woodfordi. 
dohertyi. 
kiihni. 
bivitreaia. 
annosa. 
ericssoni. 
lasara. 
furva. 
dohertyi. 
H. sublutea Beth.-Bak. (9h). This extraordinary species has the forewings transparent, with black 
veins, the hindwings bright golden-yellow with narrow black border, a contrast almost giving the impression 
of the abdomen and hindwings of wimberleyi (Ilf) being joined to thorax and forewings of georgiensis (11 k) 
But in addition the shoulders are provided with long-haired, golden-yellow patagia which alone would suffice 
to render the species easy to recognize. From the Angabunga River where it seems to be rather common- 
H. decipiens Rothsch. (Ilk) is distinguished by the uncommonly long and narrow spot nearest the 
apex; moreover, the anal projection of the hindwings is more broadly black, and the abdomen black without 
any spots. New-Georgia, Solomon Archipelago. 
H. meeki Rothsch, (12 a), a small species, with slender body, head and thorax marked with orange, abdomen 
with orange rings. Hindwings orange at base, hyaline beyond. Guadalcanar (Solomon Archipelago), April. 
H. woodfordi Btlr. (9 h), is like the preceding, but larger, and the hyaline spots on the fore wing are more 
encroached upon by black. Hindwing of cf almost throughout, of ? at base golden-yellow. Island of Alu 
(Solomon Archipelago). In its external appearance it reminds one of H. sublutea. 
H. dohertyi Rothsch, (12 a) has the basal half of the forewing hyaline, the outer half, inner margin and 
hindwing black. This peculiar colouring precludes the possibility of mistaking it for any other species. 
Humboldt-Bay (Dutch New-Guinea), September, October. 
H. kuehni Rothsch. (12a). Forewing brown with only 2 large hyaline spots, one below base of cell 
and a larger one within its apex. Hindwing orange at base, violet-brown in outer half. Larat Island, 
discovered in January by IT Kuehn. 
H. bivitreata Hmps. (yh) resembles the preceding form; brown, the entire palpi except the tips, frons, 
shoulders, pectus, lower part of abdomen and legs orange. On the forewing an hyaline wedge-shaped spot in 
the cell, and beneath it a triangular longitudinal spot from near base to inner margin. Hindwing brown, 
base and anal projection yellow. 22 mm. Tenimber, Larat. 
12. Genus: Eressa Wkr. 
Of this genus 43 forms are known, all of which live in the Indo-Australian Region, with the exception 
of one that is found on the Congo. They are for the most part small insects, of much more delicate build 
that most Syntomidae, but many with uncommonly big head. Tongue mostly well developed, palpi short and 
porrect, middle and hind tibiae with small spines. On the forewing vein 3 arises far before the angle of the 
cell, 4 and 5 from the very angle, 6 below the upper corner; 7, 8, 9, 10 and 11 are stalked. On the rather 
small, oval hindwing rib 2 originates considerably before the end of the cell, 3 and 5 arise far apart, 4 and 
7 are lacking. Thus the hindwings appear more rounded, proportionately broader than in Syntomis, and their 
flight is for that reason somewhat more clumsy. Many species are very scarce and, on account of their small 
size, easily overlooked. They have the same habits as the Syntomis, and frequent mostly the same localities. 
E. annosa Wkr. (= marcescens Fldr .) (12 b), the largest species of the genus, is. represented by a 
number of slightly different forms: The typical form has the wings blackish (cf) or monotonously brown (?) 
with a number of hyaline spots at the base and, separated from them by a broad streak of the ground¬ 
colour, several similar ones in the discus. The typical form is found in the Malay Peninsula. —- The form 
from Sumatra named by Rothschild ericssoni has on the abdomen several lateral rows of yellowish-white 
spots. — lasara Pagenst. (12b) is the form from Java, smaller and darker; on the hindwing the basal hyaline 
spots are separated from the discal ones by a very narrow line on the discocellular, which appears in our 
figure (m.ide from the type) somewhat two heavy. Apparently not common. 
E. furva Hmps. (9h), dull yellow-brown, forewings with but few brownish hyaline spots; easily 
recognized by the yellow-brown hindwings being devoid of all hyaline spots and having in cf the inner 
margin doubly folded. From Damma Island, North-Australia. Only the type (British Museum) seems to be known. 
E. dohertyi Rothsch, (12b) closely resembles the preceding species, but is somewhat darker; forewings 
with a few hyaline basal spots, not found in furva. Frons dull ochreous, a feature not visible in our figure. 
From Adonara, one of the Lesser Sunda Islands. 
