PIIASMIDiE. NECROSCIA. 



153 



size of the head, the abbreviated mesothorax, short legs, 

 and very large wings, as well as for the various colours of 

 the latter. The head is small and convex, destitute of 

 ocelli, fulvous, with a black spot on each side behind the 

 eyes. The antennae arc black, with the two basal joints 

 luteous green. The extremities are broken off at nearly 

 an inch from the base. The prothorax is nearly equal in 

 size to the head ; it is green, with the anterior lateral angles, 

 two contiguous spots in the middle of the fore margin, a 

 spot on each side above the insertion of the fore legs, and a 

 spot on the middle of the hind margin black. The meso- 

 thorax is short and rather narrowed in front, having a 

 slight constriction close to the fore margin ; it is slightly 

 rugose, green, with two spots on the disc towards the fore 

 margin, a slender lateral line on each side, and a transverse 

 spot near the hind margin black. The tegmina are broad, 

 nearly square, with the angles rounded off, green, rugose, 

 with a strongly angulated red carina. The wings are very 

 large ; the costal area green in front ; the strong midrib 

 red, furcate beyond the middle ; the hind part black, with 

 the numerous transverse veinlets green ; membranous area 

 brownish black, with a large basal spot and a subapical row 

 of oval spots white. The abdomen is long and slender, 

 chestnut-brown, with the junction of the segments, as well 

 as the sides of the terminal segments, yellow. The legs 

 are rather short and simple ; the tarsi with the basal joint 

 as long as the three following taken together. Body be- 

 neath luteous ; the three terminal ventral segments reach- 

 ing to the extremity of the eighth dorsal segment, not 

 swollen ; the articulations indistinct *, two curved thin 

 appendages extending beyond the tip ; the anal styles of 

 moderate size, extending beyond the extremity of the 

 body. 



Plate XVIII. Fig. 1. The male, of the natural size. la. The 

 terminal segments of the abdomen seen sideways. 



71. (404.) Necroscia Sparaxes, Westw. 



Plate IX. fig. 6, male. 



Plate XX. fig. 4, female. 



Elongata, inermis, rufescenti-albida, lsevis, haud nitida ; 



capitc et thorace tenuiter villosis, capitis vertice et meso- 



noto lineis tribus nigris ; prothorace linea unica mediana ; 



tegminibus breviter ovalibus, in medio carinatis et angulato- 



elevatis ; alis hyalinis, venis longitudinalibus fuscis, trans- 



versis late fusco tinctis, area costali fulvo-lutea, basi obscu- 



* The slight appeal .nee of articulations induces me to consider this 

 specimen as a male, although the unswollen structure of these seg- 

 ments might be supposed to indicate a female. 



riore, vena media simplici in <$ , furcata in $ ; pedibus bre- 

 vioribus, inermibus, parum villosis (mas et fcem.). 



Long. corp. maris, unc. If; cap. lin. If ; anten. lin. 16 ; 

 proth. lin. \\ ; mesoth. lin. 3 ; metath. lin. 3 ; abdom. 

 lin. 101 + lin. 2 = lin. 12£; tegm. lin. 1£; alar, expans. 

 unc. 2. 



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

 proth. lin. 2 ; mesoth. lin. A\ ; metath. lin. 6 ; abdom. 

 lin. 17 + lin. 3 = lin. 20 ; tegm. lin. 3 ; alar, expans. 

 unc. 4-J. 



Hab. Insula Ceylon. Mus. Tcmpleton. India orient. 

 (JDomina Hamilton). Mus. Ent. Soc. Lond. 



Distinguished by its long and narrow form, destitute of 

 spines, with the legs rather short and simple, and the wings 

 large and reticulated. General colour reddish buff. The 

 head with a slender black line down the middle, and one 

 on each side behind the eyes. The antennae long and 

 slender, especially beyond the middle, with very numerous 

 short joints ; they, as well as the legs and anterior part of 

 the body, are finely villose. The pro- and mesothorax have 

 a fine black line down the centre, and the latter has also 

 a fine line on each side within the lateral margin of the 

 mesonotum. The tegmina are small and shortly ovate, 

 strongly carinated down the middle, which is elevated into 

 an angle a little before the centre of the carina. The wings 

 are large and rather hyaline, with the longitudinal veins 

 brown ; all the transverse veins widely bordered with a 

 brown shade, which becomes confluent towards the tips of 

 the wings ; the costal area fulvous buff, rather darker at 

 the base in the female, and slightly clouded with darker 

 shades. The legs are rather short and simple, and marked 

 with several very fine dark longitudinal lines ; the tarsi 

 have the basal joint as long as the three following. The 

 abdomen is reddish brown, with several fine dark longitu- 

 dinal lines ; that of the male is narrow and of nearly uni- 

 form width ; the seventh joint rather narrowed ; the ninth 

 wider, with the posterior lateral angles rounded off; the 

 terminal ventral segments are scarcely swollen, the eighth 

 and ninth being confluent and pointed at the tip, which 

 does not extend beyond the eighth dorsal segment ; the 

 anal styles are prominent, slender, and obtuse at the 

 tips. 



The female has the extremity of the body gradually 

 attenuated, the terminal joint being bifid at the tip, with 

 the anal styles protruded backwards and placed close 

 together, giving the appearance of an extra minute joint. 

 The operculum is but moderately swollen, and extends to 

 the middle of the ninth dorsal segment, its apex being 

 bifid. 



