334 



Records of the Indian Museum. 



[Vol. XY, 



cross vein is at the middle of the discal cell in one wing and near the base 

 iu the other. There are traces of gold dust spots towards the sides 

 of three of the middle abdominal segments and I am not altogether 

 satisfied with the identity. 



Table shewing general grouping of oriental species of Erioceka. 



A. Thorax mainly or wholly yellow or reddish, 



as compared with black or brownish. ^ 



B. Abdomen principally yellowish or reddish 



C. Wings dark, without distinct pale mark- 



ings. 

 (a) Five posterior cells 



(h) Four posterior cells 



(r) Number of posterior cells unstated , 

 CC. Wings dark, always with distinct pale 

 markings ...... 



BB. Abdomen principally black or brown 



AA. Thorax mainly or wholly black, black- 

 ish, brown or dark grey, as compared 

 with yellowish or reddish (in gmvelyi 

 sometimes partly or wholly ferruginous 

 red ; in pulchrithorax, ash-grey). 



D. Abdomen principally yellowish or red- 



dish. ^ 



E. Very small species, 6 mm. .... 

 EE. Larger species, 12 mm. upwards. 



(a) Five posterior cells .... 



(6) Four posterior cells .... 



(r) Number of posterior cells unstated . 



DD. Abdomen principally blackish or brown ; 

 the ground colour never pale (in maculi- 

 ventris dorsal surface mainly orange 

 except at sides and tip). 



F. Wings absolutely clear .... 



FF. Wings dark, with or without pale mark- 

 ings, 

 (o) Five posterior cells. 



O. Legs black or dark brown .... 



GG. Legs yellow . 

 (b) Four posterior cells. 



'plecioides. Walk., angustipennis, 



Ender., aurantm, sp. nov. 



nigroapicalis, sp. nov. 

 pachyrhina, Os. Sac, nibrescenfi. 



Walk., pyrrhochmma, Walk. 



jjaenulata, Ender. 

 snUellata, Edw. 



acrostacta, Wied., wesopyrrJio, 

 Wied., lunata, Westw., cotn- 

 binata. Walk., cJiluta, Walk., 

 badia, Brun. 



infixa, Walk., selene, Os. Sac, 

 humberti, Os. Sac, meleagris, 

 Os. Sac, pannosa, Ender., 

 cfenophoroides, Edw., fenes- 

 Irata, Brun., rufithorax, Brun. 



optabilis. Walk. 



bicolor, Macq., sem.iliynpida, 

 Brun. 



dichroa. Walk., albonotata, Lw., 

 smalurensis, Meij., testacea, 

 Brun., pulclirithorax, sp. nov., 

 rufiventris, sp. nov., triinincti- 

 pennis, sp. nov. 



ivberrulifera, Edw. 



rrysfallnpterri, Os. Sac 



hasilaris, Wied., leurotelus. 

 Walk., mansueta, Os. Sac., 

 unicolor, Meij., gravelyi, sp. 

 nov. 



perennis, Os, Sac, plnmhUincla , 

 Brun. 



>■ The terms used in this table such as " mainly yellowish or reddish '" must not be 

 taken too literally, and allowance must be made for individual variation which is not 

 uncommon in this genus. 



« A considerable portion is yellowish in birolor, scmHimpkht and alhnnatala. 



