EUCLIDISEMA; MEGISTOCLISMA; HYPAETRA. By M, Gaede. 
491 
36. Genus: Eudidisevna 
Palpi erect, the 3rd segment short. Tibiae of q with long hairs, central tibiae with a cavity and long 
brush of hairs, moderately harry in Fore and hind tibiae without spurs. Besides the 2 african species the 
Genus contains a few indo-australian. One of these somewhat resembles a Parallelia, the others all have 3 white 
lines in triangular formation. Type: mygdon Cr. from India. 
Eu. itnminus Sn. (54 g). Forewings grey-brown with 2 large black-brown patches. The first at base to a imminua. 
wide white band from below y 3 costa to centre of inner margin. Posteriorly a second patch, the upper edge of 
which is impressed downwards in outer part to below vein 6, angulated rectangularly there, vertically to inner 
margin, somewhat inwards from vein 1. The margin greyer behind a line obliquely inwards from apex and 
then close next to the large dark patch; costa is blackish before this line. Hindwings pale brown, darker at 
margin. 30 mm. From Wetter Island. We are illustrating a specimen of this rare species, from the Staudinger 
collection. 
Eu. bisinuata Sn. (54 g). This species somewhat resembles a small Parallelia joviana, it is also like the bisinuata. 
previous species in colouration and marking. The white band is much narrower. The curving downwards of 
the outer spot on costa is steeper, the outer edge is incurved below the angulation, obtusely outwards on sub- 
median fold, then obliquely inwards to inner margin. Hindwings somewhat darker then in imminua. 30 mm. 
Described from the Celebes. We are illustrating a specimen from the Key Islands. 
The following species have a large dark triangle with white edge on 
forewings. 
Eu. mygdon Cram. (= triangulum F. . mygdonias Hbn.) (54 g). As the species is found in China on palae- mygdon. 
arctic territory, it is already described in Vol. 3, p. 332, pi. 61 f. Forewings pale lilac-brown at costa and in 
outer area, median area dark brown. A narrow white band from below % costa towards the anal angle. The 
anterior edge of the triangle is horizontal outwardly, the outer edge vertical, somewhat incurved at inner margin. 
Hindwings brown. 30—35 mm. India, Ceylon, Malacca, Tonkin, Formosa, Sunda Islands. 
Eu. alcyona Drc. (= koplitis Meyr., isosceles Warr.) (54 g). Forewings similarly lilac-brown on costa alcyona. 
and at outer margin. The white band from below costa near base in the direction towards the anal angle, wider 
than in m ygdon. Anterior edge delicately white, uniformly faintly curved, the outer edge parallel to outer margin. 
Submarginal line straight from apex to inner margin, anteriorly to it proximally diffuse red-brown. Hindwings 
paler at base than in mygdon. 30 mm. New Guinea, New Pommerania, Queensland, Fiji Islands. 
Eu. emathion Sn. is perhaps only an alcyona form. It differs by the shape of the outer marginal line emathion. 
of the dark triangle, that is more vertical, straighter and slightly impressed in centre. One pair is known from 
the Celebes. 30 mm. 
Eu. delta Bsd. This species is very common in E. Africa and it is dealt with in Vol. 15, p. 248, pi. 30 a. delta. 
A single $ has been found in the Celebes and described as orestonion Sn. It is not known to occur in the inter¬ 
vening territories. 
37. Genus; Megistoclisma Hmps. 
This Genus is striking on account of its size in comparison to the preceding and subsequent Genera. 
It corresponds with the following Genus Hypaetra through the long legs, only the central tibiae have spurs. 
The body is sleek, the long 3rd segment of the palpi is flattened at the end. Only one species. 
M. ribbei Pagst. $ (55 a). ForeAvings lilac-broAA r n at costa, beloAV red-brown. Inner line black, undulate, ribbei. 
vertical, forked at inner margin with a branch outwards. Paler red-brown before and behind the antemedian 
line up to the white median line, between this and the inner line the costal area has a white edge. Median fine 
slightly excurved, only curving outwards at the end above vein 1 and conjoining there with the outer line. Outer 
line from vein 5 onwards irregularly undulate to the junction with the median line. Submarginal line yellow- 
red, interrupted between vein 5—6, straight from vein 5 onwards, anteriorly paler. Round apical spot rusty 
brown. Hindwings lilac-brown. In the $ a large white spot from centre of costa to vein 5, beyond which is the 
dark outer line with yellow edge. Margin darker red-brown. In A the forewings are paler, especially at apex 
and before the submarginal line. On hindwings there are long brown hairs on costa, the white spot is absent. 
95—115 mm. New Guinea. 
38. Genus: .Hypaetra Gw. 
The Genus was briefly discussed above. Foretibiae with somewhat bolder hairs, the others very sparsely. 
In distinction to Megistoclisma, these are medium sized strongly built species. Type noctuoides Gn. from India. 
Only 1 species is african, the others belong to the indo-australian territory. 
