IlESPERID/E. 
305 
spots. Fore-wing : spot at extremity of cell divided by disco-cellular 
fold; first three spots of discal row minute but distinct, forming a 
thin outward-curving costal ray about midway between disco-cellular 
spot and apex ; other spots of discal row larger, forming a strongly 
inward-curving row between third median nervule and submedian 
nervure, — the middle spot of these three being the largest, subquadrate, 
and immediately below disco-cellular spot. Hind-wing : spotless. Cilia 
broad, dusky- whitish. Under side. — Hind-wing and costa and apical 
area of fore-wing pale oclireous-hroiun, ivith a reddish tinge. Fore-wing : 
spots as on upper side, except that those in costal part of discal row 
are usually less distinct and sometimes obsolete ; a hind-marginal 
whitish cloud over loiuer part of ochreous-hrown of apical area. Hind- 
wing : Ob very conspicuous, rather hroad, white longiticdinal stripe, com- 
mencing at a little distance from base and running along disco-cellular 
fold to hind-margin ; a duller, much less conspicuous, wider whitish 
stripe along inner-marginal edge ; space of inner-marginal fold brownish 
grey. 
$ Paler, didler ; hind-wing not darker than fore-iving ; spots of 
fore-wing rather larger, the three lower ones of discal row more widely 
separated from each other. Under side. — Hind-iving : grey of inner- 
marginal fold paler ; inner- marginal white stripe very narrow and ill- 
defined ; on disc the minute traces of a row of whitish spots. 
From T. niveostriga, Trim., this species may at once be recognised 
by (i.) the conspicuous longitudinal central white stripe on the under 
side of the hind-wing. Other distinctions are (2.) three spots instead 
of two in costal part of discal row ; and on under side (3,) the nervures 
not paler than the ground-colour; (4.) the whitish cloud on hind- 
margin of fore-wing; and (5.) the dull and ill-developed state of the 
inner-marginal white stripe of the hind-wing, which in niveostriga is 
shining pure white. 
It gave me much pleasure to name this new butterfly in honour of Pastor 
H. D. J. Wallengren, the distinguished Swedish lepidopterist, whose good 
fortune it was to be the first to make known to science a large number of the 
South-African Rhopalocera. 
Like so many other novelties among the Hespteridoe, this curious Thymelicus 
rewarded the unremitting researches of Colonel Bowker, who discovered it in 
Zululand in 1880. Later in the same year he sent an individual taken at the 
Biggarsberg in Natal. 
A $ example sent by Mr. A. D. Millar in June 1888 was taken by him 
among grass along a brook near the Halfway House at Botha's Hill, Natal. 
Localities of Thymelicus Wallengrenii. 
A. South Africa. 
E. Natal. 
h. Upper Districts. — Estcourt M. Hutchinson). 
H. Boioher). Botha's Hill {A. D. Millar). 
F. Zululand. — Napoleon Valley (/. //. Boivker). 
VOL. III. 
Biggarsberg (/. 
U 
