PHASMIDiE. NECROSCIA. 



139 



tali obscuriori plus minusve nebulosa ; abdomine alis multo 

 longiori, apice compresso (fcem.). 



Long. corp. fcem. unc. 3-f- ; cap. lin. 2| ; anten. unc. 2f ; 

 proth. lin. 2 ; mesoth. lin. 7y ; metath.lin. 7 ; abdom. lin. 

 21 +lin. 5=lin. 26 ; tegm. lin. 3 ; alar, expans. unc. 4. 



Hal. In Assam (D. Jenkins) ; Java (Dr. Iiorsfield). 

 In Mus. Hopeiano Oxoniae (olim nostr.), Soc. Merc. Ind. 

 Orient., et B.M. 



This species is very long and slender ; the wings, although 

 of large size, scarcely covering more than two-thirds of the 

 abdomen. The general colour is uniform pale reddish 

 brown with a tinge of buff, the costal area being more or 

 less clouded with grey and luteous. The head is oblong, 

 finely granulated on the crown with a fine central longitu- 

 dinal impressed line. The antennae are very long and 

 slender, the basal joint small ; the terminal joints very nu- 

 merous, but indistinct. The pro- and mesothorax are finely 

 granulated on the back and sides. The tegmina are oval, 

 truncate at the ends, very slightly angulated near the middle 

 of the main carina. The wings are somewhat opake, of a 

 very pale greyish buff, with the veins luteous or slightly 

 tinged with rosy ; the costal area more or less mottled with 

 grey and luteous ; the median vein simple. The abdomen 

 is long and simple, gradually attenuated to the tip, with 

 the anal styles elongated and posteriorly porrected ; the 

 oviduct is not swollen, and does not extend quite to the ex- 

 tremity of the abdomen. The legs are long, slender, and 

 simple. 



The male is smaller and still more slender than the 

 female. 



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

 The extremity of the body seen sideways. 



Specimens vary in their somewhat shorter proportions, 

 and in the darker brown tint, the more uniform colour of 

 the costal area of the wings, and in the rather more angu- 

 lated tegmina, which are sometimes pale luteous on the 

 outer margin, with a luteous patch arising from the eleva- 

 tion of the carina. Mr. Wallace has sent a female insect 

 from Sarawak, Borneo, so greatly resembling the Assam 

 specimens, that I can scarcely regard it otherwise than as a 

 local variety ; the mesothorax is shorter, the tegmina rather 

 longer, and the wings considerably longer than those of the 

 typical females ; the legs are also shorter ; the proportions 

 b„-ing— 



Long. corp. unc. 3$ ; cap. lin. 2 ; proth. lin. 2\ ; me- 

 soth. lin. 6; metath.lin. 6; abdom. lin. 17 + lin. 5=lin. 22; 

 tegm. lin. 3f ; alar, expans. unc. 4£. 



If it should ultimately prove distinct, it may receive the 

 name of N. Warasaca, Westw. 



30. (363.) Necroscia Sarpedon, Westw. 



Plate XXXII. fig. 5, male. 



Plate XVI. fig. I, female. 



Elongata, gracilis, inermis, fusca, opaca ; capite cum 



pro- et mesothorace linea media tenui nigra ; mesonoto et 



abdominis segmentis quatuor basalibus nigris nitidis, horuni 



marginibus posticis pallidis ; alis fumosis, area costali fusca 



rubido tincta et subnebulosa ; stylis analibus elongatis 



(fcem.). 



Long. corp. fcem. unc. 3f ; cap. lin. 2 ; proth. lin. 2 ; 

 mesoth. lin. 7 ; metath. lin. 7 ; abdom. lin. 21 + lin. 5 = 

 lin. 26 ; tegm. lin. 2\ ; alse, lin. 25 ; alar, expans. fere 

 unc. 4J. 



Hab. North Australia. B.M. 



A single mutilated specimen of this species is contained 

 in the National Collection. It is long, narrow, opake 

 brown, destitute of spines or tubercles. Head rather small, 

 with a slender central longitudinal line, which extends along 

 i the middle of the pro- and mesothorax. Ocelli wanting. 

 Prothorax with two diverging black lines in the hind 

 part ; the hind part of the metanotum and four basal seg- 

 ments of the abdomen black and glossy, the extremity of 

 these segments pale ; hind segments brown, gradually nar- 

 rowed to the eighth segment ; terminal segment as long as 

 the preceding, with the anal styles narrow, longer than the 

 joint itself, and truncate at their tips, extending from its sides 

 near the tip. Tegmina small, rather square ; outer angles 

 rounded ; carina slightly elevated. Wings large ; costal area 

 brown, with a claret tint, and slightly marked with lighter 

 clouds ; median vein furcate ; posterior portion dusky. 

 Middle legs short, slender, and simple ; basal joint of the 

 tarsi rather short ; the other legs and antennas broken off. 

 Meso- and metasternum pale, with a broad central black 

 vitta. Operculum narrow, not swollen, extending nearly 

 to the extremity of the ninth dorsal segment. 



Plate XVI. Fig. 1. The female, of the natural size. In. The 

 terminal segments of the body seen laterally. 



P.S. The British Museum has recently received both 

 sexes of this species from North Australia. The male is 

 represented in Plate XXXII. fig. 5. It is very long and 

 slender, coloured as in the female, the dark lines on the 

 head and prothorax scarcely visible. The tegmina with 

 the carina much elevated and rounded in the middle. The 

 wings dusky brown in the apical half, the basal half sub- 

 hyaline, with brown longitudinal and transverse veins ; the 

 costal area blackish brown, with numerous oblong buff 

 spots ; the median vein simple. The abdomen with the 

 three terminal ventral segments short, not extending be- 



