230 
Annals of the Transvaal Museum 
slight tuft on prothorax and a spreading crest on metathorax; abdomen 
covered with rather long hairs, last segment with a tuft of long hairs in the $ ; 
on first segment a spreading crest of scales; femora of all legs thinly covered on 
inner side with long hairs ; all tibiae with long hairs and scales in front, forming 
tufts; fore tibia with a process a little longer than tibia, forming a fluted organ, 
narrow at upper frd, then broadening out towards tip, then acuminate; the 
edges of the process are covered with hairs and the whole is somewhat hidden 
in the hairs on inner side of the tibia ; mid and hind tibiae with two spurs only ; 
outer spur a little longer than the inner one, spurs very sharply pointed, 
provided with two ridges of teeth for nearly frd their whole length, the ridges 
converge towards the point and the spurs are for the greater part covered with 
rather long hairs ; tarsi armed with spines and covered with tufts of hairs and 
scales at each joint, last joint with such a tuft at end between the claws. Fore 
wing broad, triangular; costa a little arched near base, then straight; apex 
rounded; termen somewhat oblique, curved, a little produced at veins 4 and 6; 
tornus very little rounded ; inner margin somewhat arched ; 1 b forked at base ; 
2 from f th lower median ; 3 from frd 2 to 4 ; 4 from lower angle ; 5 from a little 
above middle of discocellulars, which are oblique outwardly and somewhat 
curved; 6 from upper angle; 7, 9, 10 stalked; 8 absent; 7 from 9 at before frd; 
10 from 7, 9 at a little beyond frd; stalk from a little before upper angle; n 
from beyond frd upper median; 12 parallel to costa. Hind wing semicircular; 
costa somewhat hollowed out at middle; apex well rounded; termen very 
oblique, very much arched and somewhat incurved at vein 5; tornus well 
rounded ; inner margin arched ; 1 a rather long ; 1 b straight ; 2 from lower median 
before frd; 3 from fth 2 to 4; 4 from lower angle; 5 rather weak, but present, 
from just above middle of discocellulars, which are very oblique outwardly, 
each half being somewhat curved; 6 and 7 on a stalk of over half and from upper 
angle; 8 free at base, then curved towards and anastomosing with the upper 
median till near upper angle, then curved upwards and parallel to costa for the 
greater part. This genus is more reduced than any other Notodontid known to 
me, especially the absence of the third joint of the palpus is interesting. 
Polelassothys Plumitarsus spec. nov. 
(PI. XIV, fig. 17; PI. XII, figs. 2-8.) 
<J. Most hairs and scales of thorax, ground colour of both wings on upper 
and under side and hairs on legs pure white; scales on head and prothorax 
and the tuft cinnamon (xxix) mixed with white and black; metathoracic tuft 
of burnt sienna (ii) scales on outer side and metallic urania-blue (xxiv) scales 
mixed with white scales ; abdomen white, mixed with hair-brown (xlvi) hairs ; 
tuft on abdomen of orange-cinnamon and mikado-brown (xxix) scales; palpi 
white, tinged with orange-cinnamon towards tip and slightly irrorated with 
black; shaft of antennae white, irrorated with dark vinaceous-drab (xlv); 
branches Prout’s brown; fore wing densely irrorated beyond sub-basal line, 
except before antemedial line, between lower median and 1 b, with very fine 
black points with which each scale is tipped, so as to produce a pale drab-grey 
(xlvi) colour when viewed without a magnifying glass ; the lines are produced 
by the irroration being a little more dense and by being preceded or followed, 
or both, by the whitish ground colour; a basal line of fine black irroration in 
pure white field, almost straight; beyond it, to sub-basal line a narrow edging 
of such an irroration along the costa; sub-basal of black irroration preceded 
by almost pure white field and followed by pure white line, oblique from costa 
