MR. HENRY WALTER BATES ON PHASMIDÆ. 307 
pallid-brown in their faded state, but probably green in life. The seventh dorsal seg- 
ment is much shorter than the sixth, and about equal in length to the eighth and ninth ; 
the latter is much narrowed towards the apex, and the apex itself is bluntly rounded. 
The anal styles are short, linear, and pointed. The genital operculum is flat and sud- 
denly dilated about the middle, tapering thence to a point, so as to resemble altogether 
in figure a spear-head ; its surface is pubescent, and it reaches nearly to the tip of the 
abdomen. 
Hab. Batchian (Wallace). One example (9) in Mr. Saunders's Collection. 
NECROSCIA TENEBROSA. Fem. Cylindrica (mesothorace antice et abdomine apice angus- 
tatis), inermis, obscure olivaceo-fusca, opaca; alarum area costali nigro multi- 
fasciata; pedibus pallide annulatis; alarum membrana pallide fusca, diaphana ; 
capite breviter oblongo, absque ocellis, nigro-trilineato ; oculis valde prominentibus ; 
antennis setaceis, elongatis, obscuris; abdominis segmentis quatuor terminalibus 
subito angustatis ; stylis analibus exsertis, porrectis, acutis; segmento ventrali sexto 
apice inciso ; operculo lineari, tenui, apice integro ; tegminibus apice late rotundatis, 
valde convexis, conicis ; alis late rotundatis; pedibus elongatis.—Long. corp. 2" 9"; 
anten. 2" 2"; mesothor. 43"; abdom. 1" 31".-31"—1" 7"; tegmin. 23"; ale 
ar 8". 
In form this species closely resembles N. Erechtheus, Westw. (Cat. Phasm. pl. xiv. f. 6), 
but it differs widely in colour, the membrane of the wings being pale brown, without a 
trace of red, and the head, thorax, and coriaceous parts of the wings of a dark 
olive-brown, marbled and streaked with a darker and blackish tint; the costal area of 
the wings is erossed by several irregular, oblique, blackish-olive belts, which form about 
three indistinet broad fasciæ. The thorax is narrowed anteriorly, and is, like the head, 
free from granulations and spines. The four terminal segments of the abdomen are 
narrower and shorter than the rest; the anal styles project beyond the extremity, and ` 
are pointed. The sixth ventral segment is notched at the apex ; and the operculum is 
short, narrow, and very little convex; its apex is entire and pointed. "The legs are 
rather elongated, the anterior pair being nearly two inches in length; they are of a 
dusky olive-brown, spotted and ringed with a much paler hue of brown. 
Hab. Ceylon (Nietner). Two examples (2) in Mr. Saunders’ Collection. 
NECROsCIA sMARAGDULA. Mas. Filiformis, gracilis, capite, prothorace et mesothorace 
læte cæruleo-viridibus ; metathorace infra læte rufo, eodem supra et abdomine pallide 
rufo-olivaceis ; pedibus rufis ; tegminibus et alarum area costali flavis, apicem versus 
fusco-variis, area postica hyalino-fuliginosa ; stylis analibus brevibus, linearibus, 
valde obtusis; capite orbiculari, ocellis nullis, oculis magnis ; mesothorace rugoso ; 
antennis fuscis, articulis basi pallidis, prope apicem annulo lato flavo.—Long. corp. 
1" 8": mesothor. 3" ; metath. 31"; anten. 1" 10”. (Pl. XLV. f. 7.) 
This elegant and gaily-coloured species is not closely allied to any other that I have 
been able to examine. The head is suborbicular, being short and regularly rounded 
behind the large and prominent eyes; itis unarmed, smooth, and without ocelli. The 
