Publ . 22 . I . 1927 . 
CHRYSOPSYCHE. By Dr. C. Aurivillius. 
20 9 
B. pallida Dist. only differs from B. bifascia in the purer white colouring and the forewing exhibiting pallida. 
only a dark discal dot, but no transverse bands. The larva is black with white dorsal and lateral lines; ventral 
legs yellowish-brown; hairing orange-yellow; it lives on pepper-trees (Piper nigrum L.) and does sometimes 
much harm to them. Transvaal. 
3. Genus: Oirysopsyclie Btlr. 
This genus is peculiar to the Ethiopian Region and distinguished by the great sexual difference. The 
d'd' differ in their size, colouring, and marking so completely from the $$ that their homogeneousness can 
only be ascertained by breeding. Head and thorax clad with rough (9) or more appressed (C) hair. Frons plain. 
Palpi small, not or little projecting beyond the frons. Eyes fine-haired. Antenna as far as the apex with two 
rows of pectinations; pinnae in the §§ shorter than in the <$<3. Legs hairy; anterior tibiae unarmed; hind 
tibiae only with terminal spurs; claws at the base dentate. Abdomen projecting beyond the abdomen, in the 
(3 coniform with an anal pencil, in the $ large and thick without anal wool. Wings entirely margined with 
short fringes and a rounded border. Forewing at the costal margin feebly convex or almost straight (A), its 
apex in the C more produced, anal angle broadly rounded off or sometimes in the A feebly indicated. Costal 
margin of hindwing more ($) or less ($) uniformly bent without indentations. Neuration: forewing with 12 
veins; vein 4 from the anal angle or a little before it rarely shortly forked with 5; 6 from the apex of the discal 
cell, 7 and 8 forked from the same place or 7 shortly forked with 6, 9 and 10 a little before the apex of 
the cell on a long fork which is as long as, or longer than the free part of the veins; vein 11 separately from 
the anterior edge of the closed discal cell. Discal cell of hindwing open; veins 4 and 5 from the same place 
or forked; basal cell small and narrow. — The larvae are cylindrical with three long hair-pencils, a porrect 
one on each side of the first abdominal joint, and on the last joint one that is directed hindward. Pupa yellowish- 
brown, resting in a dense, generally golden yellow web which is freely fastened on the upper side of leaves. 
Ch. mirifica Btlr. (C = maera Schs.; 1 = radei Dew.) $ (40 a). Wings above with a light yellow mirifica. 
ground-colour and quadrangular yellowish-brown spots. Forewing above in the basal quarter brownish with 
whitish scales in the basal part of the discal cell and of area 1 b; then follows a broad light median band with 
brown spots at the costal margin, in the base of the areas 2 to 4, at the posterior margin and on the cross¬ 
vein of the discal cell; distally this median area is defined by a narrow, semi-transparent, almost straight, 
lead-coloured transverse band which, on being magnified, shows a coating of roundish whitish scales; marginal 
portion yellow with an irregular row of brown spots, those in 3, 7 and 8 being situate nearer to the margin 
than the others. Hindwing above for the greatest part hued with brownish, only at the costal margin lighter 
with distinct brown spots in 6 and 7; sometimes there are traces of a post median bent transverse band of brownish 
spots. Head and body with yellow hairs; dorsum of thorax with intermixed whitish bristly hairs. <$ (40 a). 
Although Dr. Schultze captured the Co swarming in numbers around a box in which there was a $, he 
unfortunately says nothing about the marking and colouring of the C- Strand regards Ch. radei Dew. as the C 
of mirifica. But to me it seems to be more probable that Ch. maera Schs. is the true C of mirifica. It is 
also possible that the C is variable and that both the forms belong to mirifica. The C lying before me and 
captured by Schultze in Cameroon (Duala) corresponds rather well with maera Schaus. Head and thoracal 
dorsum covered with yellowish brownish-grey hair; chest and legs grey, abdomen blackish with a yellow anal 
pencil. Beneath both wings are blackish-brown without markings; forewing in the centre and hindwing at 
the costal margin broad red-brown. Fore wing above brown with two bent dark brown transverse lines and a 
dark brown discal spot; between the transverse lines they are somewhat lighter, and at the posterior margin and 
apex of the discal cell in area 5 feebly hued with greenish; on the outside of the distal transverse line follows 
a broad somewhat darker transverse band being expanded towards the costal margin, almost reaching the apex 
of the wing and being distally irregularly defined. Hindwing above blackish with a reddish-yellow spot at. 
the costal margin in 6 and 7. Expanse of wings: 38 mm. -— Tessmann describes the first stages of this species 
as follows: larva 5 to 6 cm long, clad with short velvety hair, olive-green, at the end of each ring a silvery 
white spot warming into yellowish beginning from the third ring; second ring at the beginning with a 
similar transverse band; first ring velvety brown. On the sides the larva is quite silvery white and shows on 
the first ring two black porrect hair-tufts; head and front legs loam-coloured. On being disturbed the larva 
runs very swiftly gliding along. Schultze found the larva in secondary bush-parts of the primeval forest 
on Alchornea, an Euphorbiacea; ,,it usually sits freely on the upper side of the poplar-like leaves, where it 
is to be noticed from afar by its magnificent lemon-coloured or golden yellow dorsal spots.“ He continues: 
,,By breeding I obtained, strange to say, only always the magnificent whereas I only got the insignificant 
CC in the same way as in Chr. imparilis. I almost dare say that the C larvae either have an exterior quite 
different from the or even that they have different habits.“ West Africa. Hitherto no $ of the genus 
has been bred from the larvae. 
Ch. lam aid Auriv. (29 a) is in the $ similar to mirifica, but smaller, with reddish and smaller spots lamani. 
of the fore wing and behind the discal cell a narrow blackish, not lead-coloured transverse band. The A i 3 
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