MEMOIRS ON ORIENTAL RHYNCHOTA. 307 



The well-known rice-pest, formerly termed Leptocorisa acuta (Thnnb.), 

 be'Iongs to this genus, and should now be known as Myodocha acuta 

 (Thunb.). 



Localities, 



L^undubia spinosa (Fabr.), British Borneo (a fine ^ of the var., with 

 someiwhat spotted tegmina, expanding 137 mm., Coll., Edwards). 



Phymatostetha stellata (Guer), British Borneo (Coll., Edwards). 



Coi^moscarta octopunctata (Am. Serv.), British Borneo (Coll., Edwards). 



Aipongopus hmnneus (Thunb.). Ceylon : Pundaluoya (Sept. 1897, 

 E. E. Green, one specimen), not previously recorded from Ceylon. 



Addendum. 

 On p. 49, Polydidya Krisna was described (PI. A., fig. 4). Although 

 according with the short descriptions of Burmeister and Stal, it is 

 evidently not a true Polydidya ; the latter genus having much broader 

 elytra and wings (the latter also more lobate) and a differently shaped 

 head, wh.ile the wings are much more densely reticulate. It is there- 

 fore neces.isary to erect a new genus. 



'^ Thaumastodictya. 



Vertice oculis circiter quadruple latiore, basi leviter obtuse 

 emarginato. Fronte aeque lata ac longa, basi obtusa, levissime reflexe, 

 processu dest ituta, marginibus lateralibus sat sinuatis, sursum subangu- 

 stata, apicem', versus utrimqne sublobata ; basi obtusangulato, apice 

 ampliata et c lypeo distincte latiore. Elytris apicem versus panllo 

 ampliatis, triplo longioribus quam mediatim latioribus, reticulatis Venis 

 duabus clavi posterius in unam conjunctis, hac vena pone apicem 

 apertum clavi; longe continuata. Alis reticulatis. 



Tibiis anticis Land dilatatis, femoribus longitudine fere aequalibus. 



Type T. KRISNA (Kirkaldy). 



t Polydidya K'risna, Kirk, 1902. J. Bomb. Nat. Hist. Soc.., XIV, 

 p. 49. PI. A, fig. ,4. 



