234 Mr. E. Doubleday on some new Diurnal Lepidoptera. 
near the anterior margin, five vitte around the cell, a series of 
eight round spots near the margin, and four between these and 
the terminations of the vittee, all whitish. Cilia fuscous, spotted 
with white. Below, anterior wings with the disc fuscous, the 
apex light brown, the markings nearly as above but more defined ; 
posterior wings brown, the discoidal cell and abdominal fold 
whitish, the vittee nearly as above but much less distinct ; the 
vitta between the first and second discoidal nervules terminated 
by a rounded spot ; the mner row of whitish dots very small, the 
outer much larger. 
Head and thorax black, spotted with white, the latter gray pos- 
teriorly. Abdomen gray at the sides, fuscous above and below. 
This insect in form and in some respects in colourmg resem- 
bles P. dissimilis. It has the cell of both wings closed. Of three 
specimens in the Museum collection, no one has the antennze 
perfect ; a fragment on one specimen is black. 
Fam. MORPHID/Z. 
Genus THAUMANTIS. 
Th. Diores. Th.alis omnibus nigro-fuscis supra maculis magnis disci, 
perpulchre czeruleis, nitidis; subtus strigis disci fuscis marginisque 
externi albidis; posticis ocellis duobus. Exp. alar. 3 unc. 9 lin. . 
vel 95 millim. 
Hab. Sylhet. 
Above, all the wings fuscous black, the anterior with a broad 
band-like spot, commencing near the costa beyond the middle, 
and extending towards the anal as far as the lowest median ner- 
vule. This spot is of a brilliant metallic, changeable blue, much 
paler and less changeable externally. On the posterior wings is 
a large patch of the same rich blue, paler in the centre, oceupy- 
ing the whole disc of the wing. Below, all the wings less black 
than above, the outer margin paler; this pale portion bounded 
internally by an undulated pale or whitish striga, becoming 
brown towards its termination at the anal angle of the posterior 
wings: between this and the margin is another less distinct si- 
milar striga. The anterior wings have besides two fuscous strigee 
in the discoidal cell inclosmg a paler space, and a third striga 
commencing on the costa beyond the cell and extending ob- 
liquely nearly to the anal angle, slightly bordered internally with 
whitish. The posterior wings have a transverse fuscous striga 
near the base, and another commencing near the middle of the 
costa and reaching nearly to the anal angle. Just within the 
pale submarginal striga near the costa is a round yellowish spot, 
inclosing a brown one placed towards its outer margin, and be- 
tween the first and second median nervule a round black spot 
sprinkled with blue atoms anteriorly, and surrounded by a yel- 
