212 
ESTIGENA; STENOPHATNA; OPISTODONTIA. By Dr. C. Aukivillius. 
africana. 
marshall i. 
libera. 
Table of Genera. 
A. Margin of both wings uniformly bent. 
a. Margin of both wings entire. Fork of veins 9 and 10 of forewing much longer than the veins themselves. 
Basal cell of hindwing broad. 1 . Estigena. 
p. Margin of both wings feebly undulate. Fork of veins 9 and 10 of fore wing not longer than the veins 
themselves. Basal cell of hindwing narrow and equally broad, much narrower and shorter than the 
discal cell. 2. Stenophatna. 
B. Margin of hindwing between the veins 2 and 6 almost straightly cut off or emarginated, always undulately 
margined or dentate. Basal cell of hindwing narrow and much shorter than the discal cell. Fork of veins 
9 and 10 of fore wing much longer than the veins. 3. Opistodontia. 
1. Genus: Estig'Ciaja Moore (Tauscheria Bryk). 
Palpi long, straightly porrect, projecting far beyond the frons. Eyes bare. Anterior tibiae unarmed, 
hind tibiae only with very short terminal spurs; tarsi above short-haired. Forewing somewhat elongate, its 
distal and anal margins form a uniform bow with an entirely rounded anal angle. Hindwing almost oviform 
without an angle. Veins 4 and 5 of forewing separate, 8 from the fork of 6 and 7. In the hindwing veins 
4 and 5 are forked and the basal cell despatches 5 strong veins towards the costal margin, the two last 
of which are forked. 
E. africana HoJl. (= muscovit Bryk ) (29 b). Closely allied with the Asiatic species E. pardalis Walk. 
(Vol. II. pi. 27 c, and X, pi. 35 f), but much lighter and with hyaline spots on the hindwing. Body and wings 
light yellowish-brown; hindwing above at the costal margin darker brown with three small hyaline spots, one 
in the apex of the discal cell and one each at the base of the areas 5 and 6, and before them with two dark 
dots at the costal margin in the areas 8 and 9 which are often only beneath distinct. Both wings above 
irregularly and very scantily strewn with minute black scales. Forewing generally above with a black discal 
dot. Ogowe Valley and Mashuna Land. 
2. Genus: stenophatna Auriv. 
Palpi porrect, projecting little beyond the frontal hairing. Antennae as far as the apex bipectinate. 
Legs unarmed; tarsi scaled. Wings short and broad; forewing with a rounded apex, a bent and undulate distal 
margin and quite round anal angle. Hindwing with a strongly bent costal margin which forms an even 
bow with the distal margin. Forewing with 12 veins: vein 2 near the base, 3 from the centre of the cell. 
4 and 5 from the anal angle, 6 and 7 on a short fork, 8 close before the apex of the cell ( S. marshalli) 
or from the fork of 6 and 7 (L. libera). In the hindwing veins 4 and 5 are forked, vein 7 rises about midway 
between the apex of the cell and the basal cell, and the narrow basal cell is provided with 3 or 4 strong 
accessory cells. 
S. marshalli Auriv. Head, thorax, chest, and ventrum of abdomen dark violettish-brown; abdomen 
above whitish-grey with a reddish hue. Forewing on both sides red-brown, above with two fine indistinct 
dark transverse lines, beneath at the anal margin densely clothed with long white hair. Hindwing blackish- 
brown without markings, beneath at the hind-margin whitish. Mashuna Land: Salisbury. 
S. libera Auriv. <$. Head, thorax, legs, and ventrum reddish fawn-coloured; abdomen above grey. 
Forewing elongate with a strongly bent margin and a very short straight anal margin, fawn-coloured at the 
costal margin grey and with a broad grey bent submarginal band; a small discal dot and two indistinct dentate 
transverse lines, an antemedian one and a median one, blackish. Hindwing reddish, at the margin broadly 
grey. Both wings beneath dark red-brown, yellowish at the hind-margin, and dark grey at the apex of the 
forewing and at the distal margin of the hindwing. Expanse of wings: 41 mm. A Vest Africa. 
3. Genus: Opistoclogatia Auriv. 
Palpi moderately long, projecting somewhat beyond the frons. Eyes bare. Antenna as far as the apex 
with two rows of gradually shortening pinnae. Hind tibiae only with terminal spurs. Forewing more or less 
elongate, entirely margined or at the distal margin dentate. Hindwing at the costal margin strongly bent, at 
the distal margin between the veins 2 and 6 almost straightly cut off or even somewhat emarginated, invariably 
dentate or undulately margined. Vein 8 of forewing from the fork of 6 and 7. Veins 4 and 5 of hindwing forked. 
In the shape of the hindwings this genus is well distinguished from all the other Ethiopian Lasiocampidae, 
but in this mark it corresponds with the Asiatic genus Stenophylloides Hmps. (cf. Vol. X, p. 406, pi. 32 d). 
