252 t-^P''"' 



around the insertion of the elytra, red. Elytra pale yellow, scarcely transparent, 

 nearly twice as long as broad ; radius straight, terminating in the apex ; petiole 

 of the cubitus about one-fourth longer than the posterior arm ; posterior fur- 

 cation elongate, about twice the length of the anterior measured on the margin : 

 pro- and mesonotum pale yellow. Lec/s pale yellow. 



Abdomen bright green ; genitalia bright green, upper margin of the processes of the 

 <J very narrowly black. Length, 1 hue. 



Taken at Astrachan in August, but at present I am unable to say 

 upon wliat plant. Appears to be a common species, as a number of 

 individuals were sent to me in a quill. Unfortunately the shaking in 

 transit detached the antennfe in every case. Its small size and 

 peculiar coloration will at once enable any one to recognise it. 



Trioza el^agxi. 



Delicate pale green. Head almost perpendicular. Crown : down the middle a little 

 more than one-half the width between the eyes, on each side near the posterior 

 margin is a fovea, from which proceeds a deep channel running obliquely in the 

 direction of the lower margin of the eye ; posterior margin concave. Face : 

 lobes delicate pale green, about two-tliirds the length of the crown, measured 

 down the centre, sparingly clothed with some very fine pale hairs, base of either 

 nearly equal to the length, divergence at the apex equal to the base of either. 

 Ei/e$ reddish-brown. AntenncB very pale, 9 — 10 joints black. 



Thorax green : protiotiim narrow, deflected to almost in a line with the head ; meso- 

 notum convex, anterior portion {dorsulum) nai-rowed towards and rounded at the 

 middle of the anterior margin, posterior angles produced into a short spine ; 

 posterior portion on either side adjoining the insertion of the elytra with a 

 distinct round callus. Elytra clear, transparent, about two and a quarter times 

 as long as broad, nerves white ; costal margin convex, greatest convexity-beyond 

 the middle, apex obtuse ; radius flatly convex next the base, then concave to- 

 wards the costal margin, and recurving just before joining it, junction con- 

 siderably before the apex. Legs delicate pale green. Tarsi pale. Claws black. 



Aldomen, <? , pale malachite-green, sparingly clothed with short, very fine white 

 hairs ; genitalia clothed with very fine white hairs, genital plate conical, lieight 

 about equal to twice the width of the base, processes in outline, shaped some- 

 what like the breast and neck of a bird with the breast-shape inwardly ; $ pale 

 malachite-green, genitalia inclined to brownish ; upper genital plate considerably 

 longer than the lower one, from which it diverges and curves upwardly. 



Found upon Elceagmis angustifolius in June and July at Petrowsk 

 (Caucasus) . 



The earlier stages of the life of the species are at present un- 

 known. 



Lee, S.E. : 2lth January, 1880. 



