452 Mr. A. G. Butler on new Sphingidse 
XLVIII.—Descriptions of new Species of Sphingide, chiefly 
from Africa. By Arruur G. Butirr, F.L.S., F.Z.S., 
&e. 
THE following Sphinges have -been added to the national 
collection during the last two or three years :— 
1. Panacra insignis, sp. n. 
Allied to P. vigil: primaries rather grey in colour, with 
more sharply defined and blacker markings; the pale band 
(following the three oblique black lines of the central band) 
white, sinuate-angulated ; not traversed by black lines as in 
P. vigil, but bounded externally by a wavy black stripe with 
white outer edge; this is again followed by a continuous 
brown band, which tapers to the apex ; external border silvery 
white, traversed near its inner edge by a black-spotted olive- 
brown line; fringe blackish olivaceous: secondaries greyish 
brown, traversed by a diffused pink band, which encloses an 
interrupted line of the ground-colour; fringe white-tipped: 
body much as in P. vigil, but the dorsal abdominal stripe 
more silvery. Under surface quite unlike P. vigil, the wings 
rosy, with greyish-white external borders, bounded internally 
by an undulated grey line; a discal series of black dots on 
the veins parallel to the outer margin; discoidal cell of pri- 
maries greyish. Body whitish, venter with a lateral series 
of black dots. EExpanse of wings 63 millim. 
Andaman Islands. . 
A more beautiful species than P. vigil. 
2. Panacra imitans, sp. n. 
Probably allied to P. Rutherfordi of Druce from the Cama- 
roons; form of P. lignaria, but the primaries denticulated 
nearly as in Angonyx. Pattern and coloration exactly re- 
sembling that of Cherocampa geryon of Madagascar, excep- 
ting that there is no large black patch on each side of the 
basal segment of the abdomen, and that there is a series of 
ill-defined, subdorsal, brownish tapering spots on each side. 
Wings below of the same general tint as C. geryon, but the 
primaries with whitish costa and the discal whitish band 
narrower and confined between oblique black lines somewhat 
as above : secondaries whitish, crossed by two closely approxi- 
mated black central lines reflexed at costa, a third line at a 
short distance beyond them, and a dark grey-brown external 
border. Body whitish, venter with three pairs of conical 
black spots towards the base. Expanse of wings 75 millim. 
Delagoa Bay (Mrs. Montetro). 
