MEMOIRS ON ORIENTAL RH7NCH0TA. 301 



Phi/sorhpichus linncei and tuberculatus^ Stal, 1874, Svensk, daka. 

 Eandl., p. 49; Reuter, 1881, Act. Sci. Fenn., XII., p. 32. $ $ 

 apt. [nov. syn.). 



The pilosity of the antenna is a sexual character, and the difference in 

 the structure of the pro-notum (in ' linnei ' and ' tuberculata ') is doubt- 

 less due to the fact that linnei represents the macropterous form, and 

 tuberculata the almost or quite apterous form. I have examined a 

 series of Ectriclwdia in the British Museum, and have now before me 

 "2, $ $ linnei and three quite apterous 9 tuberculata ; I have no doubt 

 but that they are the same species. They are all from Ceylon. The 

 colour of the connexiva varies somewhat ; in some individuals entirely 

 bright scarlet, in others black with a sharply defined narrow 

 exterior margin of scarlet, while in others the colours are confused a 

 neutral tint occupying the greater part of the connexiva. 



Family Gereid^. 

 A synoptic revision of the Oriental Gerrinse (Gerris, Cylindro- 

 stethusj Ptilomeraj Metrocoris, &G.) is nearly completed, and I ask Oriental 

 Collectors to favour me with their duplicates (a few of each in alcohol 

 if possible). I want particularly fresh examples of Gems fiuviorum 

 Fabr. (? = armatits, Spin.). 



Family Pyrrhocorid^. 

 Dysdbrcus, Am. Serv. 

 A number of species have been recorded from the Oriental Reoion 

 but have not yet been revised on structural characters. The worker in 

 India and Ceylon will probably be correct, however, in referrino- his 

 captures to D. cingulatus (Fabr.). The principal synonyms are 

 appended : 



D. CINGDLATDS (Fabr.). 

 PI. A, figs. 11 and 12. 

 = Cimex cingulatus, Fabr., 1775, Syst. Ent,, p. 719. 

 = C. kcenigi, Fabr., 1. c, p. 720. 



= Lygmus olivaceiis, Fabr., 1798, Ent. Syst. Suppl., p. 540. 

 = Pyrrliocoris Jccenigi, Hahn., 1834, \Vanz. Ins., II, fig. 122. 

 = P. poecilus, H. Schaff, 1844, 1. c, VII, fig. 699. 

 = L. solenis, H. Schaff, 1. c, fig. 700. 

 = P. pyrrhomelas, H. Schaff, 1. c, fig. 702. (nov. syn.) 

 = Dysdercus Sidae, Montr. 1861 Ann. Soc. Ent. France p. 68. 



(nov, syn.) 

 14 



