Pitbl. 15. VII. 1927. 
GASTROPLAKAEIS. By Dr. C. Aurtvillius. 
on the joints 4 to 10 two light oblique streaks rise into the brown ground-colour. Body everywhere, though 
scantily, set with long soft hairs which are dorsally blackish, laterally white; the joints 1 to 5 are besides rather 
densely set above with short fine dark brown bristly hairs; in the median line most of these bristly hairs are 
white and apically somewhat expanded; on each side of the dorsum of the joints 1 to 3 there is also a small 
pencil of such white hairs. The joints 6 to 9 are in the dorsal line decorated with a small black pencil which 
is defined by white hairs in front and behind. On the last joints there are generally only short white scale- 
hairs in the dorsal line. First joint on each side with two longer, slantingly porrect pencils. Cocoon parchment¬ 
like, oviform. 
M. im mu ft da Roll. (39 a), as the figures sent by Dr. Holland show, is closely allied with andea , immunda. 
but darker and without the grey subapical spots which are generally distinct in andea. Ogowe. 
M. leucophaea Holl. (39 b) is also similar to M. audea, but still darker, and its forewing at the distal lencophant 
margin broad violettish-grey. $ unknown. Ogowe. 
M. leighi Auriv. A- Body and wings dark umber brown; abdomen and liind-margin of hindwing teighi. 
somewhat lighter. Antennae blackish with yellow pectinations. Forewing with a white central dot; the first 
and second transverse lines are absent or very indistinct; the sub marginal line forms at the apex, an oblique 
row of three distinct blackish spots in the areas 6 to 8. but it is then indistinct and angular between veins 
6 and 2; a few whitish scales at the apex of the wing between the distal margin and the submarginal 
line. Expanse of wings: 48 mm. — The $ (39 b) is larger, 65 mm. with a sharp, falciformly extended apex of 
the forewing. Natal. 
M. schultzei Auriv. <$ (40 e). Body blackish-brown; abdomen above dark grey. Tarsi apically with schnitzel. 
whitish hairs. Forewing above in the basal half blackish, transverse lines double and at least partly filled with 
rust-brown; submarginal line thick and distinct, composed of black streaks on both sides bordered with rust- 
brown. Hindwing above at the costal margin as far as vein 6 black with a very distinct demarcation of the 
colours, then whitish-grey with a blackish-grey, inwardly indistinctly defined marginal band of about 2 mm 
width, and a fine brownish-yellow marginal line. In the colouring of the hindwing this species differs from 
all the others known hitherto. $ unknown. South Cameroon. 
M. porphyria Holl. is certainly a genuine Mallocampa. The $ is unknown. The (39 c) differs from porphyria. 
all the other African Lasiocampidae in the marking of the forewing which exhibits a tiny white discal dot. 
Ogowe. 
I append here two species described by Strand. They have almost exactly the same generic marks, but never¬ 
theless they are in my opinion no true species of Mallocampa. 
M. (?) alenica Strand. (39 c). d unknown. 2. By the figure, the description is made superfluous. South alenica. 
Cameroon: Alen. — A very similar 2 from Nyassa Land I formerly took to be the $ of Pachymetana sangui- 
cincta ; it differs, however, from the <§ in the different colouring and marking, as well as in vein 8 of the forewing 
rising from the discal cell. From alenica Strand, it is distinguished by its larger size (78 mm), the hindwing being 
reddish particularly at the distal margin, and in the broad and complete, distinctly defined submarginal band 
of the forewing. Antennae much shorter pectinated than in the genuine Mallocampa This form which is 
at least a race of alenica, may be denominated: nyassica. nyassica. 
M. punctilimbata Strand. A unknown. The $ (39 c) is only known to me from the figure of the typical punctilim- 
specimen reproduced here. South Cameroon: Nkolentangan. 
24. Genus: Cwastroplakiteis Mschlr. 
Gastroplakaeis is one of the few genera of Gonometinae being distinguished from the others by the anal 
margin of the forewing being partly clothed with long scale-like hairs. Eyes bare. Palpi feebly upbent, slightly 
projecting beyond frons, with appressed scales. Antennae of A with long, of $ with moderately long pectinations. 
Hind tibiae only with terminal spurs. Hind tarsi with appressed scales. Forewing elongate with a sharp apex, 
a long, curved, undulatingly edged distal margin, entirely rounded anal angle, and short anal margin; the 
marking consists of the usual transverse lines which are generally double and waved or notched, of a frequently 
black discal dot, and a serpentine, sometimes indistinct submarginal line; veins 4 and 5 rising near each other, 
6 and 7 stalked, 8 from the stalk of 6 and 7, 9 and 10 rarely as long as their stalk, generally shorter than it. 
9 into the apex of the wing. Hindwing with an almost straight costal margin and a curved distal margin 
which is sometimes almost straight in the £; veins 4 and 5 shortly stalked, 3 from the anal angle or a little 
united with the stalk of 4 and 5; discal cell closed; 7 from near the apex of the cell; basal cell large without 
accessory veins. In all the species hitherto known the abdomen of the A G above covered with light hairs, with 
black transverse bands or spots. 
35 
XI\ 
