294 



MEMOIRS ON ORIENTAL RHYNCHOTA. 

 By G. W. Kirkaldy, F.E.S. 

 With Plates A, B and C. 

 (Continued from page 58 of this Volume.) 



Group EUCEROCORAEIA. 



= Valdasaria auctt. (11) 

 Of this group, whicb is easily recognised by the doubly constricted 

 pro-notum and the acutangular membrane cell, there are three Oriental 



genera : — 



A. Scutellum, with a process arising more or less perpendicularly 



from the disk. $ Pro-notum blackish or brownish ; 

 5 pro-notum yellowish or reddish. 



1. Helopeltis, Sign., type H. antonii. Sign. 

 Aa. Scutellum without a process — 

 $ $ Similarly coloured. 



B. Scutellum strongly sulcate. 



2. Platypeltis, Sign., type P. chimnsis. Sign. 

 Bb. Scutellum only superficially sulcate, often transversely 



rugulose. 

 (11) Eucerocoris, Westw., 1835, is the oldest genas in the division. 



o o 



3. DiSPHiNCTUS, Stal, type D. sahlbergi, Stal, Kirk. 

 Helopeltis has comparatively recently (12) been discussed by Water- 

 house and Atkinson, while Platypeltis is unknown to me. Disphinctus 

 hwneralis has been recorded (13) as attacking cinchona in Mungphu in 

 Sikkim. Mr. Green has sent me two species from Ceylon — one from 

 Mcesa indioa and another closely allied to D. humeralis from a number 

 of plants. Walker's three oriental species of Monalonion (1873, Cat. 

 Heter. YI, 161 — 3), were placed by Atkinson (1889, Journ. As. Soc, 

 Beng., LYIII, pt. 2, Suppl., p. 51) in Disphinctus, but M. divistinif 

 Walk., is certainly not a Disphinctus, and does not apparently belong 

 to any described genus ; as the unique type, however, is headless, its 

 exact systematic position must remain doubtful. 



(12) Waterhpuse, Trans. Ent. See., 1886, pp. 457—60, Plate XI ; 1888, p.. 207 ; and 1894, 

 pp. 31-2. 

 Atkinson, 1890, Ind. ilus. Notes, I, pp. 175—87, Plate XII, figs. 2 — 4. 

 (13; 1889, Ind. Mob. Notes, I, p. 4 (Atkinson, Notes on Indian Insect Pests— RhynGhota). 



