550 
RETHONA. By M. Gaede. 
rougemonti . 
vinctus. 
leucopasta. 
pelvcrulen- 
ta. 
strigosa. 
G. jougemonti Heyl. $ body blackish-brown. Forewing yellowish-brown mixed with blackish-brown. 
Fringe greyish-brown. Hindwdng greyish-yellow, fringe whitish. 34 mm. Delagoa Fay. In the forewing 
veins 7 + 8 stalked. 
G. vinctus Wkr. (= incanescens Btlr.). Body blackish-brown, with white hair. Forewing white. A 
broad reddish-brown interior band unites at the inner margin with the very oblique exterior band. At the 
costal margin small blackish-brown spots and similar lines in the median and distal areas. Hindwing greyish- 
brown, at the inner margin blackish-brown. Fringes in both wings with white spots. $ more elongate, the 
bands darker. 25- 35 mm. Transvaal. In the forewing sometimes veins 7 and 10 not stalked. 
G. leucopasta Hmps. (80 d). Body and forewing whitish-brown. At the base a white spot, more or 
less connected with the white costal margin which extends into the cell. At the costal margin some dark dots 
and a light faded band before the margin. Hindwing yellowish-brown. <$ 24—26 mm. Cape Colony, Natal. 
In the forewing veins 7 + 8 sometimes stalked. 
G. pelverulenta Hmps. Body greyish-white and brown. Forewing greyish-brown with many indistinct 
small blackish-brown spots. Hindwing also greyish-brown, the fringe at the base white. $ 24 mm. Transvaal. 
All the veins of the forewing free. 
21. Genus: lietlioua Wkr. 
Body strong. Palpi short. Antennae moderately strongly pectinate, between them a hair-pencil. 
Forewing moderately broad, the abdomen projecting beyond the hindwing. Neuration not described. Of the 
two species described in this genus the second is a Notodontida, the first (the genotype) is said to be a Cossida. 
R. strigosa Wkr. Grey. Thorax with a black transverse band and 2 black stripes. Forewing with black 
streaks between the veins, ,^16 lines. South Africa. Owing to the hair-tuft on the head it may be allied with 
Arctiocossus antargyreus Fldr. 
Tessmannia braueri Bryk. Similar to Eremocossus according to the description; it is no Cossida, but 
a Lymantriida. 
Alphabetical List 
of the African Cossidae with reference to the original descriptions. 
* signifies that the form is also figured at the place quoted. 
abura Az. Plots Stett. Bnt. Z. 41, p. 77. 
abyssinica Coss. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 132. 
aegyptiaca Coss. Harps. Ann. Mag. Nat. Hist. (8) 6, p. 132. 
albiiasciata Cor. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 133. 
albiguttata Tr. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 134. 
albovittata Az. B.-Bak. Ann. Mag. Nat. Ilist. (8) 2, p. 263. 
antargyreus Arct. Fldr. Reise Novara Taf. 82, 10. 
argillosa Phrag. Le Cerf Bull. Mus. Paris 1919, p. 161. 
armstrongi Duom. Hmps. Bull. Ent. Res. 5, p. 245. * 
arvensis Tr. Janse Ann. Natal Mus. 3, p. 613. 
asylas Az. Cr. Pap. Exot. Taf. 137. 
atrifasciata Az. Hmps. Proc. Zool. Soc. Lond. 1910, p. 481. 
atriplaga Xyl. Le Cerf Bull. Mus. Paris 1919, p. 30. 
atrireta Phrag. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 129. 
aurivillii Az. Ky. Cat. Heter., p. 872. 
auroguttata Call. H.-Schdff. AuBereurop. Schmett. f. 173. 
biatra Xyl. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 131. 
bivittata Az. Wkr. List Lep. Br. Mus. 32, p. 586. 
boisduvalii Az. H.-Schdff. AuBereurop. Schmett. f. 167. 
breviculus Coss. Mab. Ann. Soc. Ent. Fr. (5) 9, p. 344. 
brunneofasciatus Coss. Gaede Seitz Macrolep. 14, p. 542.* 
brunni Phrag. Pagst. Jahrb. Hambg. wiss. Anst. 10, p. 245. 
castaneus Pect. Gaede Seitz Macrolep. 14, p. 543. * 
capensis Xyl. Wkr. List Lep. Het. Br. Mus. 7, p. 1533. 
cirrilator Coss. Le Cerf Bull. Mus. Paris 1919, p. 107. 
crassilineatus Coss. Gaede Seitz Macrolep. 14, p. 542. * 
crassus Xyl. Dry. Ill. Exot. Ent. 3, Taf. 2. 
cretacea Xyl. Btlr. Ann. Mag. Nat. Hist. (5) 2, p. 463. 
dawsoni Chrys. Dist. Ann. Mag. Nat. Hist. (6) 20, p. 210. 
elegans Call. Aur. Kil.-Meru-Exp., p. 51. 
fauti Coss. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 133. 
ferrugineotincta IIol. Strd. Arch. f. Nat. 78 A (12). p. 36. 
flavitincta Az. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 130. 
fulvosparsus Coss. Btlr. List. Ent. 3, p. 26. 
fuscibasis Coss. Gaede Seitz Macrolep. 14, p. 542. * 
fuscifusa Phrag. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 128. 
geminatus Xyl. Gaede Seitz Macrolep. 14. p. 546. * 
grandiplaga Xyl. Gaede Seitz Macrolep. 14, p. 517. * 
gyldenstolpei Phrag. Aur. Ark. f. Zool. 17 a (32), p. 20. * 
henleyi Coss. Warr. & Rothsch. Nov. Zool. 12, p. 23. * 
hova Az. Le Cerf Bull. Mus. Paris 1919, p. 28. 
hyalinipennis Zeuz. Strd. Berl. Ent. Z. 55, p. 143. 
imitata Tr. Janse Ann. Natal Mus. 3, p. 611. 
impeditus Coss. Wkr. List Lep. Llet. Br. Mus. 32, p. 583. 
inclusa Az. Wkr. List Lep. Het. Br. Mus. 7, p. 1534. 
innominata Phrag. Dalla Torre Cat. Coss., p. 47. 
irrorata Phrag. Hmps. Ann. Mag. Nat. Hist. (8) 6, p. 128. 
kilimanjarensis Or. Holt. Ent. 25 Suppl., p. 94. 
kwouus Coss. Karsch Werther Reise O.-Afr., p. 312. 
lactescens Zenz. Gaede Seitz Macrolep. 14, p. 548 *. 
leopardina Az. Dist. Entom. 35, p. 213. 
leucopasta Tr. Hmps. Ann. Mag. Nat. Ilist. (8) 6, p. 135. 
