HYALOPERINA; LEUCOPERINA ; PORTHESIA. By Dr. M. Hering. 
139 
yellow markings at the anal angle. Hindwing white, margin black, interrupted by white and yellow. Under 
surface of anterior tibia red. In the $ often large portions of the wing are red. - aino Bryk (19 f) is a form aino. 
in which the hind wing is quite yellow, whereas the black .marking at the margin is mostly replaced by red. 
Sierra Leone to L. Nyassa. — The larva entirely resembles our Lymantria- larvae, being brownish with black 
short longitudinal and transverse streaks. The dorsal tubercles of the 2nd abdominal segment exhibit a different 
very strong bristle. 
0. catenata Jord. Similar to N. hesperia (19 d), but the hindwing shows besides a cliscal line of black cutenuta. 
spots. The distal margin of the forewing is somewhat retracted below the apex. Base with a black ring filled 
up with white, the dark discal stripe with a proximally projecting tooth. Expanse about 100 mm. North Loanda. 
26. Genus: Hyaloperiita Auriv. 
Hind tibiae with 1 pair of spurs; forewing without an accessory cell, vein 10 forked with 7 to 9, rising 
before 7, cross-vein of forewing not very strongly broken in a right or an acute angle. In the hindwing vein 
8 is only in one place united with the discal cell, vein 4 nearer to 5 than to 3. 
H. vitrina sp. n. (21b). Wings hyaline, pinkish-white veins beneath prominent. Body white, abdomen vitrina. 
yellowish, frons and base of costal margin on forewing beneath sulphur-coloured. $ type from Lake Nyassa 
in the Berlin Museum. 
H. nudiuscula Auriv. (20 h). Body whitish, tibiae and tarsi of forelegs, antennal shafts, and costal nudiuscula. 
margin of forewing black. Wings hyaline white, veins hardly darker. In the similar Stilpnotia gracillima Holl. 
the antennal shafts are white. Congo District. 
H. privata sp. n. is in every respect consistent with nudiuscula both in the neuration and colouring, privata. 
only the costal margin of the forewing being likewise white, more densely scaled, the veins more white, in the 
preceding species somewhat darker. A type in the Berlin Museum (Pogge). ,,West-African coast 44 . 
H. abyssinica sp. n. (21 c) is an intermediary stage between the two preceding species. Antennal dbyssinica. 
shaft partly white, costal margin of forewing above as far asbeneath as far as beyond the centre blackish, 
head and prothorax ochreous yellowish. Still more densely scaled than the preceding species. Abyssinia. 
A type from Mazaco in the Tring Museum. 
27. Genus: ffiosicoperina Auriv. 
Separated from all the Lymantriid genera by vein 11 being directed towards vein 12 and anastomosing 
with it, otherwise it approximates H yaloperina. 
L. atroguttata Aur. (= Syntaxis umbrinorma Tessm.) (21 c). Wings quite diaphanous white, with atroyutiata. 
a black spot at the base of vein 2 on the forewing and an indistinct blackish antemedian line, and a postmedian 
line parallel to the margin. Congo, Spanish Guinea. 
L. kahli Holl. Forewing transparent brownish, at the rise of vein 2 with a black spot, hindwing white, kahli. 
at the hind-margin clouded with pale brown. Expanse 38 mm. Cameroon. 
28. Genus: S*orthesla Steph. 
Hind tibiae with 2 pair of spurs, palpi short. Forewing without an accessory cell, veins forked in the 
order: 7, 10, 8, 9, and vein 6 rises together with the stalk; in the hindwing 6, 7 forked, vein 3 and 4 completely 
fused, so that the hindwing lacks one vein, whereby the genus is distinguished from Euproctis which it resembles 
in the habitus. The genus has an almost universal range; cf. Yol. II, p. 134; Vol. X, p. 332. 
P. producta Wkr. (= depauperata Mob.) (20 h). Body white with an ochreous-yellow anal tuft; in producia. 
the $ also the preceding segments are yellow. Wings more densely scaled, white; forewing of A beneath with 
a dark costal-marginal streak. In quite fresh on being killed at once, the white colour assumes a creamy 
tint later on. Expanse 20 (<£) to 43 (Q) mm. Madagascar, Comoro Is., German East Africa. — f. ukamica Strd. ukamica. 
is a A fonq in which the costal margin beneath is distinctly broad blackish and half of the abdomen 
yellow; — pusillima Strd. is a small form with an expanse of but 17 mm. In the Tring Museum there is a pusillima. 
$ exhibiting a red dot on the left forewing at the lower cell-end. 
P. falkensteini Dew. (20 i) is similar to producta (20 h), but the forewing is very scantily strewn with falkensteini, 
black scales. Chinchoxo. 
