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MR. HENRY WALTER BATES ON PHASMIDE. 345 
HETEROPTERYX WESTWOODIT, n. sp. Fem. Elongata, robusta, postice valde attenuata 
! scabra et spinosa, einereo-fusea ; capite subquadrato, acute tuberculato, vertice mox 
pone oculos utrinque spinis duabus majoribus ; pronoto valde inæquali, spinoso ; meso- 
noto inæquali, scabroso et spinoso, lateribus valde spinosis; metathoracis lateribus 
spinosis; pectore plano, inermi ; abdominis segmentis dorsalibus quatuor basalibus 
lateraliter acute tuberculatis, reliquis scabrosis, processu apicali elongato quam oper- 
culum breviore, apice subtruncato ; operculo valde elongato, attenuato et curvato ; 
pedibus validis, femoribus crassiusculis spinosis, tibiis apice paulo incrassatis; teg- 
minibus quam ale brevioribus, oblongis, prope basin supra valde elevatis et tubercu- 
latis, ochraceis, fusco maculatis; alarum parte membranacea fusca, area costali ochra- 
cea fusco maculata.—Long. corp. 9" 9"; anten. 1" 6"; prothor. 8"; mesoth. 31"; 
metath. 5"; abdom. 1" 4" -- process. apicali 3" —1" 7" ; opereul. 72"; expans. tegmin. 
1 10°, alar 2" 3. a 
This very distinct species of Heteropteryx differs from all others at present known by the 
length of the wings, which surpasses considerably that of the tegmina. 
The general form of the insect is very similar to that of H. Grayii (Westw.) and H. 
Mülleri (De Haan); its colour is a dingy ochreous-brown, but the tegmina and costal area 
of the wings are rather prettily variegated with brown and ashy-ochreous. The head is 
rough and tubereulated, and has a number of short spines, besides two longer ones on 
each side of the crown a little behind the eyes. The mesothorax is not much longer 
(although very much broader) than the prothorax, and the upper surface of both is very 
uneven, minutely tuberculated and spined ; there are two spines near the disk of each, 
besides others near the angles, and the sides of the mesothorax, as well as those of the 
metathorax, have each a number of various-sized spines; the breast is plane and smooth. 
The tegmina are elongate-oblong, with their apices broadly rounded ; the middle of their 
surface, near the base of each, is conically elevated, and the elevation is surmounted by a 
number of acute tubercles; they are ashy-ochreous in colour, with numerous brown 
spots, besides an irregular oblique brown belt from the base to the middle of the hind 
margin; the apex also has a large brown spot, bordered on its inner side with black 
The costal area of the wings is coriaceous only towards the tip, where the organs project 
beyond the tegmina in repose, and the opake part is coloured like the tegmina, being 
ochreous, and having the tip brown with a short blackish belt a little before the tip ; the 
membranous portion of the wings is smoky-brown. The abdomen is broad from the base 
to the end of the third segment ; it then tapers gradually to the tip; the surface of the 
four basal dorsal segments is smooth, and their sides tuberculated; but the remaining seg- 
ments are tuberculated throughout, The apical process is long, of uniform breadth, 
broad and entire at the tip and shorter than the operculum, both together being 
strongly eurved downwards. The legs are stout, the tibiæ unarmed, and the femora 
multidentate, a 
Hab. Menado, North Celebes (Wallace). One example in the collection of W. W, Saunders, Esq. 
DIMORPHODES MANCUS, n. sp. Elongatus, angustus, scabrosus, cinereo-fuscus; capite ob- 
longo, vertice postice spinoso; pronoto et mesonoto dorso antice spinosis; pedibus 
VOL. XXV. 3 C 
