﻿1869.] 



25 



Head whitish, the vertex flattened, and almost entirely occupied by the large 

 black spots which are scarcely separated by a narrow median line ; a black 

 line at the base of the antennae ; front with three transverse black lines, one 

 broad and angnlated in the middle, below the antennse, a second on the clypeus, 

 and the third occupying the labrum. Palpi slightly fuscescent. Antennas 

 black, narrowly annulated with whitish ; the basal joint short, blackish above, 

 whitish beneath. Prothorax broader than the head, whitish with black hairs, 

 the anterior margin narrowly black, and with irregular black spots on the 

 sides. Meso- and meta-thorax strongly suffused with blackish, the scutellum of 

 each pale. Abdomen blackish (colours probably changed in drying). Legs 

 whitish, longly ciliated ; a blackish spot externally near the apex of the femora ; 

 Ubice with two blackish rings, one near the base, the other near the apex ; 

 claws very short, simple, curved. 



Wings 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 veinlet 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. 

 T. Y. "Wollaston in Antonio, one of the Cape Verde Islands. 



NoTHOCHRYSA EVANESCENS, U. sp. 



iV. pallide alhida. Antennae grisece, articulis duobus basalibus pallidis. 

 Pronotum utrinque linea irregulari fusca signatum. A Ice hyalince, latce ; 

 pterostigmate elongato, pallide flavescente : anticce venis longitudinalibus 

 pallidis ; venulis costalibus fere totis, venulis gradatis, necnon venulis inter 

 radium et sectorem, furcidarum marginalium axillis sectorisque dimidio 

 apicali, nigris : posticce venulis gradatis, furculis marginalibus, sectorisque 

 dimidio apicali, nigris. Long corp. 6'" ; exp. alar 23^'". 



Hab. Sarawak in insula Borneo. In Mus. Brit. 



Totally very pale whitish with a tinge of yellow. Antennce grey, except the two 

 basal joints. Pronotum with an irregular fuscous line on each side. Claws 

 slightly dilated at the base. 



Wings 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 

 simply 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 

 by Mr. Saunders ; collected by Mr. A. R. Wallace, at Sarawak. 



