154 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



Plate IX. Fig. 6. The male, of the natural size. 6 a. The 

 terminal segments seen sideways. 6 6. The same seen from 

 beneath. 



Plate XX. Fig. 4. The female, of the natural size. 4 a. The 

 terminal segments of the body seen sideways, with the 

 extremity of the operculum separately represented. 



72. (405.) Necroscia Virbius, Westw. 

 Plate XVI. fig. 2, male. 



Virescenti-lutescens, obscura ; capite majori, postice ele- 

 vato ; mesothorace in medio supra bituberculato ; tegmini- 

 bus brevibus, subovatis, acute carinatis et in medio angu- 

 latis ; alis fuscis, basi extremo lsete viridi, apice pallide 

 marginato, area costali sublutea ; abdomine filiformi, rufo, 

 apice infiato, cercis analibus latis, brevibus ; pedibus graci- 

 libus, simplicibus (mas). 



Long. corp. maris, unc. 1-| ; cap. lin. 1| ; anten. lin. 1/; 

 proth. lin. 1| ; mesoth. lin. 3 ; metath.lin. 3 ; abdom. lin. 

 10 + lin. 2=lin. 12 ; tegm. lin. 2; alar, expans. unc. 2\. 



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

 ders. 



I have only seen a single male of this pretty species, the 

 general colour of which is pale obscure greenish lutescent ; 

 it is smooth and destitute of spines or tubercles, except two 

 small conical tubercles on the mesonotum rather beyond the 

 middle. The head is considerably wider than the prothorax, 

 with the eyes very prominent ; the hind part of the crown is 

 somewhat conically elevated. The antennae are long, very 

 slender, and with the joints scarcely distinguishable. The 

 mesonotum has a fine central longitudinal carina, and on 

 each side below the raised lateral margin is a short red line 

 running to the base of the tegmina. The tegmiua are small, 

 short, subovate, rather sharply carinated down the middle, 

 and with the centre angulated ; they are brown, with the 

 veins pale, and forming a strongly reticulated surface. The 

 wings are large, pale brown, the extreme base of a delicate 

 green colour, and the apex pale along the margin ; the 

 transverse veins are rather widely stained with rather darker 

 brown ; the costal area is dirty luteous, with the longitu- 

 dinal veins greenish, the principal vein not being furcate. 

 The abdomen is long, filiform, smooth, and of a red co- 

 lour, knobbed at the extremity ; the three apical ventral 

 segments being considerably swollen, and extending nearly 

 to the extremity of the ninth dorsal segment ; the anal 

 styles are short, broad, curved, and somewhat forcipate. 

 The legs are of moderate length, slender, simple, and of a 

 greenish lutescent colour ; the basal joint of the tarsi about 

 as long as the three succeeding joints. 



Plate XVI. Fig. 2. The male, of the natural size. 2 a. The 

 head, pro- and mcsothorax seen sideways. 2 b. The ter- 

 minal segments of the abdomen seen sideways. 2 c. The 

 last segment with the anal styles seen from behind. 



73. (406.) Necroscia Hemus, Westw. 

 Plate XVI. fig. 3, male. 



Parva, capite magno, mesothorace breviori ; inermis ; 

 viridis, pro- et mesothorace flavo maculatis ; tegminibus 

 parvis, ovalibus, supra acute angulatis ; alarum area costali 

 viridi, linea longitudinali flavescenti, margine antico ob- 

 scure, area postica infumata ; abdomine rufo ; antennis 

 pedibusque obscure rufis, tarsis albidis. 



Long. corp. lin. 18 ; cap. lin. 1-J ; proth. lin. 1 J- ; mesoth. 

 lin. If; metath. lin. 3; abdom. lin. 7|+lin. 2|=lin. 10; 

 tegm. lin. 1-j-j alar, expans. lin. 26. 



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

 ders. 



Of this pretty little species I have only seen a single 

 male, of which the hind legs were wanting. It is smooth, 

 and destitute of spines or tubercles. The head, pro- and 

 mesothorax, tegmina, and costal area of the wings are 

 green ; the mesothorax obscure greenish brown ; the abdo- 

 men red ; the legs obscure reddish, with the tarsi pale buff. 

 The head is larger than the prothorax, very convex, and 

 elevated at the hind margin, glossy, with the eyes very 

 prominent, and having a yellow longitudinal line on each 

 side behind the eye. The antennae are long and slender, 

 brownish, paler at the base. The prothorax is small, 

 glossy, with two yellow spots in front and a larger broader 

 one behind. The mesothorax is not half as long again as 

 the prothorax ; it is narrowed towards the base, which is 

 ornamented above with a yellow spot, and the hinder part 

 with a yellow line on each side. The tegmina are small, 

 nearly oval, strongly angulated above in the middle near 

 the base, green, with a pale line on the outside of the an- 

 gulated ridge. The wings large, brown; the costal area 

 green, with a pale longitudinal line ; the fore margin dusky ; 

 the chief vein is simple. The abdomen is long, subclavate, 

 brownish red ; the eighth dorsal segment much larger than 

 the ninth, which is small and semiovate ; the anal styles 

 large, exserted, and thickened at the tips ; the three termi- 

 nal ventral segments are moderately swollen, the ninth not 

 extending to the extremity of the eighth dorsal segment. 

 The legs are simple, slender, and of moderate length (the 

 hind ones wanting) ; the femora and tibiae obscure on the 

 outside, dull reddish on the inside; the tibiae dark at the 

 tips, and the tarsi pale buff. 



Plate XVI. Fig. 3. The male, of the natural size. 3 a. The 

 terminal segments of the body seen sideways. 



