472 Mr. John Scott on certain 



the insertion of the elytra than the pronotum, with a 

 pale yellow longitudinal line on each side the centre, and 

 another curved one more remote, almost forming a 

 circle ; sides pale yellow ; scutellar portion pale yellow. 

 Elytra clear, transparent ; elongate, lanceolate ; apex 

 acute ; length a little more than three times the breadth ; 

 nerves clear fuscous ; costal marginal nerve convex 

 throughout its entire length, stout at the base ; margin 

 reflexed ; stigma very narrow ; radius long, terminating 

 in the marginal nerve a little above the apex, joined 

 to the marginal nerve at the apex of the stigma by 

 a transverse nerve ; cubitus petiole about half the length 

 of the arm of the upper furcation ; furcation, measured 

 through the centre, longer than the petiole ; base of 

 the furcation joined to the radial nerve by a transverse 

 nerve ; lower arm about equal in length to the petiole ; 

 distance between the apices of the branches of the two 

 furcations equal ; margin with four nervelets ; three on 

 the dorsal margin, as in Trioza ; 4tli in the area en- 

 closed between the radius and the adjoining branch of 

 the upper furcation ; disc along the dorsal margin with 

 a broad, pale, clear fuscous shade. Legs yellow. Tibiae, 

 3rd pair at the base with a stout, triangular, curved 

 tooth ; apex dilated ; margin serrated, black. Abdomen 

 above somewhat fuscous, more or less red down the 

 centre ; two terminal segments red ; beneath yellow ; 

 posterior margin of the segments more or less red ; geni- 

 talia yellow. Length (without head), 3 lines nearly 

 (Paris). 



There is a single specimen in the collection from 

 Mysol. 



Note. — Owing to the remarkable form of the genitalia 

 of the species described in this paper, I have considered 

 it best to give figures of the parts rather than descrip- 

 tions, as they would have been very difficult to describe 

 in a moderate space, and even then not convey the 

 peculiarities sufficiently well to the mind of others. 



