25 
j whitish, the vertex flattened, and almost entirely occupied by the large 
[lack spots which are scarcely separated by a narrow median line ; a black 
L at the base of the antenna, ; front with three transverse black Imes, one 
Lad and angulated in the middle, below the antennae, a second on the clypeus, 
Ld the third occupying the labrum. Pal,i ^^^^^^^l^/'^^^f f^^^.^ttrovr 
'.lack, narrowly annulated with whitish ; the basal jomt short, ^^^'^^^^^l' 
Ivhitish beneath. ProtKora. broader than the head, whit.sh -f J^^^^^^^^' 
^e anterior margin narrowly black, and with irregular black ^PO - ^^^ 
«ides. Meso. and .neta-thora. strongly suffused with blackish, the ^cutellum o 
.ach pale. AMornen blackish (colours probably changed m ^J^f'^^'^ 
■whitish, longly ciliated ; a blackish spot externally near the apex of ^^i^ Jemoi a , 
tihi<. with two blackish rings, one near the base, the other near the apex; 
claws very short, simple, curved. 
i,s narrow, hyaline ; sub-costa and radius whitish with black lines, the rest of 
the veins and veinlets black, with occasionally a pale median space • anterior 
;wings with eight transverse veinlets between the radius and its sector ; four 
areoles between the two gradate series; the dividing vemlet _ of the third 
cubital cellule equal with, or scarcely exceeding, the transverse veinlet above it. 
I have one example of this peculiar species collected by Mr. 
V. WoUaston in Antonio, one of the Cape Verde Islands. 
NOTHOCHETSA EVANESCENS, n. sp. 
N. pallide alhida. AntenncB grisem, articulis duobus basalibus pallidis. 
motum utrinqiie linea irregulari fusca signcdum. Aim hyalines, latm ; 
rostigmate dongato, pallide flavescente : anticce venis longittuhnahbus 
'UMs; venulis costalibus fere totis, vmulis gradatis, necnon vemdis^ mter 
Ikmi et sedorem, furcidarum marginalium axillis sedonsque dimidio 
icali,nigris:posticce venulis gradatis, fur mlis marginahbus, sedonsque 
nidio apicali, nigris. Long corp. 6'" ; exp. alar 231'"- 
Hab. Sarawak in insula Borneo. In Mus. Brit, 
tally very pale whitish with a tinge of yellow. AntenncB grey, except the two 
basal joints. Pronotum with an iiTCgular fuscous line on each side. Claws 
slightly dilated at the base. 
ings broad, hyaline, iridescent; pterostigma elongate, very pale yellowish, 
with a small blackish dot at the inner end: anterior wings with the 
longitudinal veins pale yellowish ; costal veinlets (except in the pterostig- 
matical region) black with a pale space in their lower half; the apical half of 
the sector, the gradate veinlets, those between the sector and radius, and the 
basal portion of the marginal forks, also black ; sector emitting 22 branches ; 
dorsal marginal veins simple up to between the gradate series, afterwards 
Bim.piy furcate : posterior wings with all the veins and veinlets pale, excepting 
the apical half of the sector, the gradate veinlets, and the marginal forks, 
which are black. 
One example in the collection of the British Museum, presented 
y Mr. Saunders ; collected by Mr. A. R. Wallace, at Sarawak. 
