PIIASMID.E. NECROSCIA. 



129 



mesoth. lin. 5 ; metath. lin. 5 ; abdom. lin. 20 + lin. 3 = 

 lih. 23 ; tegm. lin. 2; alar, expans. lin. 50. 



Phasma (Necroscia) diacanthos, Be Haan, Orth. Orient. 

 p. 119 (pi. 15. f. 4 3 =P. (N.) spinicepsc?, nee P. (N.) 

 diacanthos $ ). 



Hab. In Malacca (D. Wallace). In Mus. W. W. Saun- 

 ders. — Borneo. In Mus. Lugdunensi. 



This is a very slender and delicate species, well distin- 

 guished by its conically elevated head and short truncated 

 tegmina, with the hind margin pale green. The head is 

 much larger than the prothorax ; the three ocelli distinct. 

 The antennae in the male are longer than the entire body, 

 blackish, with a white ring near the tip. The antenna: and 

 legs of the female are shorter than those of the male. The 

 pro- andmesothorax are slender, but widened behind; the 

 disc covered with minute white granules. The tegmina 

 are very short, with a strongly elevated conical tubercle in 

 the middle, the hind margin narrowly edged with pale 

 green. The wings are dusky ; the costal area in the male 

 reddish and unspotted, in the female reddish brown with 

 numerous darker clouds ; in the former the principal vein 

 is simple and pale-coloured, but it is furcate in the latter. 

 The abdomen is very long and slender in the male ; the 

 eighth joint longer than the preceding or following, the 

 latter being very short ; the three terminal ventral seg- 

 ments are considerably dilated, the ninth extending to the 

 extremity of the eighth dorsal segment. In the female the 

 abdomen is more robust, with the operculum extending to 

 about the extremity of the eighth dorsal segment. The 

 legs of the male are very slender and reddish, the tarsi 

 whitish, with the base of the first joint dusky ; the legs of 

 the female are shorter and more obscure, but with pale 

 tarsi, the basal joint being about half the whole length of 

 the tarsi. 



Plate XIX. Fig. 5. The male, of the natural size. 5 a. The 

 terminal segments of the abdomen seen sideways. 



Fig. 6. The female, of the natural size. 6 a. The head and 

 prothorax seen sideways. 6 b. The terminal segments of the 

 abdomen seen sideways. 



4. (337.) Necroscia Esepus, Westw. 

 Plate XVI. fig. 5, male. 

 Elongata, gracillima ; capitis vertice, prothoracis margine 

 postico et mesothorace antice spinis acutis armatis ; teg- 

 minibus subovalibus, in medio angulato-elevatis, postice 

 pallide bimaculatis ; abdomine longissimo ; alis fuscis, area 

 costali obscuriori, ad apicem pallide maculatis ; pedibus 

 brevioribus, inermibus (mas). 



Long. corp f unc. 3^ ; cap. lin. 2 ; anten. lin. 27 ; proth. 



lin. 1|; mesoth. lin. 6 ; metath. lin. 5J ; abdom. lin. 20 

 + lin. 3 =lin. 23 ; tegm. lin. 2£ ; alar, expans. unc. 3|. 



Hab. In Malacca (D. Wallace). In Mus. W. W. Saun- 

 ders. 



This species is well distinguished by its very long slender 

 form, spined head and thorax, and posteriorly maculated 

 tegmina and wings. The head and thorax are dull pale 

 greenish and finely granulated, the remainder of the body 

 brownish and smooth ; the head is armed on the crown with 

 about ten erect spines. The antennas are about two-thirds 

 of the entire length of the body ; they are obscurely co- 

 loured, with a slight pale annulus near the tip. The pro- 

 thorax is small, with a few small erect spines across the 

 hinder margin, The mesothorax is armed in front with 

 two pairs of strong spines (those on the left side being con- 

 fluent, except at the tips, in the only specimen which I have 

 seen) ; the disc of the remainder of the mesothorax is 

 armed with a few much smaller spines. The tegmina are 

 small and subquadrate, with a strongly raised obtuse tu- 

 bercle in the middle ; the hinder margin with two pale 

 spots on the edge. The wings are brown ; the costal area 

 darker, with several small pale spots on the fore margin, 

 and two or three larger and more distinct near the tips. 

 The abdomen is very long and slender, the fifth segment 

 with its hinder edge elevated in the middle ; the three ter- 

 minal segments rather swollen, the last emarginate at the 

 tip ; the two terminal ventral segments are swollen, the 

 last not extending beyond the extremity of the eighth 

 dorsal segment. The fore legs are wanting in the speci- 

 men drawn ; the four posterior are rather short and simple, 

 obscurely coloured, with the tips of the femora and tibiae 

 darker ; the basal joint of the tarsi is not more than half 

 the whole length of the latter. 



Plate XVI. Fig. 5. The male, of the natural size. 5 a. The 

 head and front of the thorax seen sideways. 5 b. The ex- 

 tremity of the abdomen seen sideways. 



5. (338.) Necroscia Agondas, Westio. 

 Plate XXVIII. fig. 2, male. 



Elongata, gracilis, fusco, albido et luteo paulo variegata ; 

 eapite postice conice elevato, hoc, pro- et mesonotis minute 

 granulatis ; alis fuscescentibus, area costali obscuriori ; pe- 

 dibus (praesertim tibiis) perbrevibus, femoribus posticis 

 crassioribus, subtus multidenticulatis (mas). 



Long. corp. maris, unc. 21 ; cap. lin. 2 ; anten. lin. 14 ; 

 proth. lin. 1 J ; mesoth. lin. 4 ; metath. lin. 5 ; abdom. lin. 

 12+lin. 2|=lin. 14i ; tegm. lin. 2£ ; alar, expans. unc. 2£. 



Hab. Sarawak, Borneo (D. Wallace). In Mus. W.W. 

 Saunders. 



