198 
RHYPOPTERYX; MYLANTRIA; ARGYROSTAGMA. By Dr. M. Heeisg. 
sordida. 
summissa. 
diplogram- 
ma. 
chera. 
xanthospi- 
la. 
niobe. 
89. Genus: Ithypopteryx Auriv. 
Hind tibiae with 1 pair of spurs. Forewing without an accessory cell, 10 forked with 7 to 9, rising before 
vein 7. In the hindwing vein 4 nearer to 3 than to 5, vein 8 not fused for a long distance with the anterior 
edge of the cell. 
R. sordida Auriv. (26 e). Blackish, wings diaphanous. Expanse: 32 to 35 mm. The $ resembles 
the palearctic Hypogymna morio L. (Vol. II, pi. 19 a) in the habitus. Damaraland, Nigeria. 
R. summissa sp. n. (27 f). Body wood-coloured yellowish, abdomen above whitish, forelegs inside 
and antennal pinnae blackish, antennal shaft white. Wings diaphanous, fore wing grey, cross-vein and fringes 
darker, hindwing dull white, fringes grey. $ type from Nairobi in the Tring Museum. 
R. diplogramma sp. n. (27 f). Body with long blackish-brown hair. Eorewing pinkish-brown, pale, 
in the distal third of the wing powdered darker, with dark double subbasal, antemedian and postmedian lines, 
the latter line behind bordered with light. Hindwing diaphanous grey, basally somewhat lighter. $ type from 
German South West Africa. — chera subsp. nov., from Cape Colony, is of a more yellowish-brown ground-colour, 
the antemedian and postmedian lines are practically plain, larger. type in the Berlin Museum. 
90. Genus: Mylantria Auriv. 
Forewing without an accessory cell, vein 10 rises from the pedicle of 8 + 9 before vein 7. 6 rises on 
the pedicle of 7 to 10. In the hindwing 6 and 7 are forked, discal cell of normal length. 
M. xanthospila Pltz. (= orestes Drc.) (26 g). Forewing intensely yellow with 1 or 2 orange-yellow 
spots at the base and seven similar rows of spots as far as the margin, those of the 5th row towards the 
margin powdered with brown, cross-vein with a black moon-spot. Hindwing light yellow, with a narrow dark 
yellow margin. Abdomen light yellow with an orange-yellow dorsal stripe. Expanse: 45 mm. Aburi. 
91. Genus: Argyrostsigma Auriv. 
Hind tibiae with 2 pair of spurs, forelegs long-haired. Forewing with an accessory cell, vein 10 from 
its centre, 7 on a short fork with 8 -f- 9. In the hindwing 3 + 4 and 6 + 7 forked. 
A. silobe Weym. (= thomsoni Drc.) (26 g). Forewing brown with a silvery white spot at the cell- 
end and some dots behind it, hindwing brownish-white. West and East Africa. 
Pettigramma spiculata Karsch. described as a Lymantriid, is an Arbelicla (= Salagena transversa Wkr.). 
Anomocoetidia basifulva Swd., described as a Zygaenida, exhibiting a Lymantriid habitus, is a G'eometrid. 
Alphabetical List 
with reference to the original descriptions of the forms of the Ethiopian Lymantriidae. 
* signifies that the form is also figured at the place cited. 
abbreviata Das. Kenr. Tr. ent. Soc. Lond. 1913, p. 596, t. 32, 
f. 36. * 
abysslnica Hyalop. Her. Seitz, Macrolep. 14, p. 139. 
achatina Das. Her. Seitz, Macrolep. 14, p. 168. 
achrodisca Aroa Hnips. Proc. Zool. Soc. Lond. 1910, p. 457, 
t. 38, f. 30. * 
acrisia Das. Pltz. Stett. Ent, Zeit. 41. p. 83. 1880. 
acroleuca Das. Seitz, Macrolep. 14, p. 176. 
actuosa Lael. Her. Seitz, Macrolep. 14, p. 159. * 
acuta Lael. Her. Seitz, Macrolep. 14, p. 159. 
adspersa Crorem. H. S. AuBereur. Schmett. f. 109. 1854. * 
aegra Lael. Her. Seitz, Macrolep. 14, p. 161. * 
aetheria it u and. Strd. Iris 22, p. 111. 1909. 
aethiopica Lael. B.-Bak. Ann. nat. Hist. (8) 2, p. 261. 1908. 
aethiopica Forth. Snell. Tijdschr. v. Ent. 15, p. 37, t. 3, f. 4, 5. 
1872. * 
alliius Das. Holl. Psyche 6, p. 174, t. 17, f. 13. 1893. * 
affinis Euproctillops. Her. Seitz, Macrolep. 14, p. 143. * 
affinis Marbloid. Her. Seitz, Macrolep. 14, p. 158. * 
africana Neomard. Holl. Ent. News 1893, p. 343, t. 15, f. 11. * 
agrotoides Das. Holl. Psyche 6, p. 473, t. 17, f. 16. 1893. * 
aino Othroed. Bryk. Arch. Naturg. 81, A. 4, p. 4, f. 1,1915. * 
albacosta Org. Swh. Ann. Nat. Hist. (9) 11. p. 421. 1923.' 
albacostata Org. B.-Bak. Ann. Nat. Hist. (8) 7, p. 545. 1911. 
albiapex Das. Her. Seitz, Macrolep. 14, p. 167. * 
albibasalis Das. Holl. Psyche 6, p. 470, t. 17, f. 2. 1893. * 
albicostata Das. Holl. Psyche 6, p. 471, t. 17, f. 5. 1893. * 
albida Lael. Hmps. Ann. Nat. Hist. (8) 5, p. 440. 1910. 
albifrons Stilpn. B.-Bak. Ann. Nat. Hist. (8) 7, p. 540. 1911. 
albilinea Das. Holl. Psyche 6, p. 469, t. 18, f. 7. 1893. * 
albilunulata Das. Krsch. Ent. Nachr. 21, p. 368. t. 4, f. 12. 
1895. * 
albimacula Lym. Wllgr. Kongl. Sv. Akad. Handl. 5 (4), pi 35. 
1865. 
