118 
A LIST OF THE BUTTERFLIES OF BORNEO. 
seeins that aesopus is intermediate between thetis and bulis; 
de Nicéville comments on the upperside markings forming a 
connecting link and I think the underside markings bear that 
out too. 
The following are the characteristics of the three Sarawak 
Museum forms (only males compared ) :— 
(i) Upperside: inner-marginal black border forms a strongly 
curved arch; the ends of which form an even edging along the 
costa, and along the hind-margin from Ist median nervule to 
anal angle. The actual edge of this black margin is slightly 
irregular, in no two specimens alike, though the general im- 
pression is that of an evenly rounded arch. No extension 
of black along inner margin. 
Underside: fasciae parallel 
=(. thetis, Drury, form nesophila, Feld. 
(ii) Upperside; black marginal border heavier; at a point 
less than a quarter of the length of costa from the base, the 
black begins to broaden, exte nding unevenly to end of cell and 
across to 2nd median nervule thus forming an angulated inner 
edge to this marginal border; thence it extends evenly, 
but twice as broad as in nesophila, to anal angle, where it be- 
comes diffuse along a small part of the inner margin. 
Underside: fasciae not quite parallel, but stiggesting the 
anterior convergence of typical bulis = form aesopus, Fab. 
(iii) Upperside: marginal border more heavily developed ; 
inner edge rather more angular and from 1st median nervule 
to half way along inner margin the border is developed into an 
anal patch. 
Underside: fasciae sharply convergent 
=(. bulis, Doubl. and Hew. form, malayica, Feld.* 
Curetlis bulis, Doubl. and Hew. 
Anops bulis, Doubleday and Hewitson, Gen. Di. Lep. u. 
p. A73,.pl. 1D, fie. 5). 6 (1852): 
Anops as Felder, Novara Reise, Lep. it. p. 221, 
pl 28, tie. 18, ¢  Gis6o), 
Curetis dentata, discalis et stigmata, “Moore, Proc. Zool. 
Soc. Lond) pp. i37 sand ss seks one 
Curetis angulata, Moore, op. cit. p. 522, pl. 48, fig. 2, 6 
(1883). 
Curetis felderi, Distant, Rhop. Malay. p. 203, pl. 24, fig. 3, 
é and pl. 22, fig. 26, 2 (1884). 
1. I ought perhaps to state that the above views are put forward after the 
examination of Bornean examples only. These, and other suggestions as to 
nomenclature throughout this paper, being founded on the examination of 
Bornean specimens only, are intended to serve as material for any future 
Monograph of Kastern Lycaenidae, rather than presuming to correct the views 
of other authors of far greater experience and ability than the present writer. 
Jour. Straits Branch 
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