234 
SOUTH-AFRICAN BUTTERFLIES. 
hair, hiding basal part of tarsi ; tarsi scaly, and with a few short 
bristles, stout, spinose beneath : fore-legs in both sexes like the rest, except 
in being slightly smaller and perhaps even more hairy. 
Ahdomen of moderate length, arched dorsally, much compressed 
laterally. 
As long ago as 1847, Boisduval (Appendix to Delegorgue's 
Voyage dans VAfrique Australe, p. 588) observed that his Lycmna 
Delegorguei would doubtless constitute a new genus, and mentioned the 
characteristic features of its legs, antennae, and palpi, but did not give it 
any generic name. HopfFer referred the butterfly to the genus Lucia 
of Swainson, and I, with the expression of much doubt and uncertainty, 
provisionally followed him in 1866. I find that i)6%or^2^ei (identified 
by Mr. A. G. Butler with Bibidns, Fab.) has no agreement with Swain- 
son's type, the Australian Lucia limbaria, but is less remote from the 
Cingalese Lucia LJpius, Westw., the type of Moore's genus Spalgis {Proc. 
Zool. Soc. Lond., 1879, p. 137; and Lep. Ceylon, i. p. 70, 1881). 
From the latter, however, it is well distinguished by the densely hairy 
palpi, extraordinarily hairy tibise, the first subcostal nervule rising from 
the extremity of the discoidal cell of the hind-wings, and particularly 
by the completely articulated and two-clawed fore-tarsi of the male. 
This last character is, as far as I can learn, shown only in two other 
genera of the family, viz., Arrugia and Deloneura, and constitutes a 
distinction of great importance. Superficially, Lachnocnema bears con- 
siderable resemblance to the very hirsute Mediterranean and West 
Asian genus Thestor, Hiibn. (especially to T. Mauritanicus^ Lucas), but 
the latter genus is most remarkably distinguished by its extremely 
short and very massively spurred fore and middle tibiae, while the fore- 
tarsi of the $ are of the ordinary unarticulated type with a single 
curved terminal claw. 
I have separated from L. Bihidus, Fab., under the name of L. 
D'Urhani, the smaller and duller form alluded to at p. 281 of my 
earlier book, as I found that it was of constantly slenderer structure, 
and had a different station. I have received from the Limpopo Eiver 
a very large $ Lachnocnema, which I believe represents a third species ; 
it is very pale beneath, and has barely a trace of the characteristic 
steely dots. 
In this genus the J is of a plain uniform brown above, but the $ 
Bilulus has a more or less developed whitish or white disc in both 
wings, and the $ D'TIrlani a discal suffusion of pale grey. On the 
under side the reddish-brown and brownish macular transverse bands, 
and the hind-margins are ornamented with glittering steely points or 
dots. L. Bihidus has a wide distribution over South-Eastern Africa, and 
L. D'TIrhani almost as large a one, but the former only is recorded as 
a native of Mozambique, while the latter is not known from any place 
north-east of Natal. 
