GONOBOMBYX. By Dr. C. Aurivillius. 
255 
a'. Wings with entire margins. 21. Pehria. 
b'. Distal margin in both wings feebly undulating. 
23. Mallocampa. 
(3. Anal margin of fore wing at the distal part with long stiff hairs which are apically more or less expanded 
like scales. Vein 8 of forewing almost invariably from the pedicle of 6 and 7. Eyes bare. 
*. Posterior tarsi with appressed scales. — $ without anal wool. 
o. Vein 9 of forewing into the apex. Basal cell of hindwing without an accessory vein. 
1. Distal margin of forewing almost straight, entire. 22. Leptometa. 
2. Distal margin of forewing bent, undulating; anal angle entirely rounded. 
24. Gastroplahaeis. 
oo. Vein 9 of forewing into the distal margin. Basal cell of hindwing with an accessory vein. 
25. Dinometa. 
**. Posterior tarsi above hairy. Vein 9 of forewing into the apex. Basal cell of hindwing without an 
accessory vein. — $ with anal wool. 26. Diapalpus. 
B. Palpi large and long, about three times as long as the head. Eyes hairy. Vein 9 of forewing into the 
apex; vein 8 from the discal cell. Basal cell of hindwing short and broad with an accessory vein. 
27. Rhynchoboynbyx. 
1. Genus: Oonobombyx Auriv. (.Prodonestis Holl). 
Palpi with appressed scales, hardly projecting beyond the head, straightly porrect, with a small terminal 
joint. Eyes bare. Antennae also in the $ with long pinnae. Hind tibiae only with terminal spurs; hind tarsi 
with appressed scales. Forewrng oblong with a sharp apex; its distal margin undulating, forming a distinct 
angle at the end of vein 5; veins 6 and 7 forked, 8 from the apex of the discal cell; 9 and 10 much longer 
than their pedicle, 9 into the apex of the wing. Hindwing oblong with an almost straight costal margin and 
a very much rounded undulating distal margin; discal cell short, closed, rarely with an indistinct cross-vein, 
veins 4 and 5 forked; basal cell large and pointed with indistinct accessory veins. 
G. angulata Auriv. (= fulva Holl.) (38 a). Dark fawn-coloured, head, dorsum, and upper siu-face angulala. 
of fore wing darker. Forewing with three indistinct violettish-grey transverse lines or narrow transverse bands 
proceeding vertically towards the costal margin and growing indistinct posteriorly, the first of which extends 
near the base and is directed towards the centre of the anal margin, whilst the two others are postmedian and 
are directed towards the distal margin. Hindwing beneath at the base and costal margin broadly lighter 
whitish-grey. In the G there is on the forewing above at the end of the discal cell a thick silvery transverse 
streak which is absent or only marked in the £. — The larva being about 100 mm long is almost cylindrical, 
only slightly flattened and without lateral appendices. Its skin is marbled grey and brown, above everywhere 
densely clothed with long, soft, whitish or yellowish-grey hairs, and between the hairs strewn with short, fine 
black spikes; above in the centre of each joint excepting the first and last there is a large black spot densely 
clothed with black spikes. The joints 4 to 11 exhibit oix each side a dark, light-edged oblique sti’eak in which 
the spiracle is situate. The under sui’face is dark brown with a rounded or triangular yellowish spot in the 
centre of the joixxts 5 to 10. Head yellowish-brown with six blackish-brown longitudinal lines which are 
continued on the dorsum of the first joint of the body. The cocoon is oviform, posteriorly tapering, but 
anteriorly compressed and with a filiform appendix in one angle; its wall is stiff, parchment-like, and densely 
set with the short black spikes of the larva. The pupa is very thick, at the anal end vei’y broad and almost 
transversely cut off, quite smooth without any hairs or bristles and without small hooks at the entirely flat 
cremaster. Cameroon, Gabun. 
G. vespertilio Weym. $. ,,Forewing yellowish greyish-brown. A brown obsolete spot is at the hind- vespertilio. 
margin near the base and a small oviform black median spot on the terminal vein. Behind this spot there 
extend two narrow, parallel, indistinct dark brown sti'ipes before the centre of the costal margin to the 
centre of the hind-margin, being somewhat distally curved in the middle and expanded like a spot at the hind- 
margin. Then follows a row of brownish spots: two larger ones in the cells 7 and 6 and 4 smaller ones in the 
cells 4 to lb. The latter spots are alxxiost contiguous and thus form a third half stripe, whilst the two 
anterior spots are more distally removed. The distal margin is dark brown, in the middle broadest, 8 mm broad 
opposite the angle of the wing in the centre of the distal margin, but proximad 1 not distinctly defined 
and terminating 2 mm before the apex, so that the apex of the wing is light. Fringes blackish-brown. Hind- 
margin with long blackish-brown hair, and between them with single ochreous hairs. Hindwing at the base 
3 to 4 mm broad blackish-brown, the rest yellowish greyish-brown, in the middle more scantily scaled, therefore 
somewhat diaphanous, but near the distal margin darker. Fringes dark brown. No other marking. German 
East Africa: Lindi.“ ,,Distinguished from the West-Africaix G. angulata Auriv. by the longer extended apex 
of the forewing and the different colouring, the different position and direction of the transverse stripes.“ 
