324 NOVITATES ZOOLOC.ICAE XXII. 1915. 



Under-snrface whitish green, tlie forewiiig, except towards posterior and distal 

 margins, somewhat suffused with reddish. 



Grande Comoro, September 23, 1911 (G. F. Leigh). Type in coll. Rothschild. 



Almost equally distinct in colour from the blue stillata Feld. and the yellow- 

 green simplex Warr., etc. No trace of red spots accompanying the postraedian line. 



SuBFAinLY ACIDALIINAE 

 Tanaotrichia "Warr. 



This genns was erected by Warren {Proc. Zoo!. Son. T.onrl. 18113, p. 3(>0) for 

 prasoDiria Swinh. = trilincata Warr., and snbseipiently merged by Hampson in 

 Enjtkrolopkus and by its author {Xov. Zool. ii. 98) in Rlwihstrophia. Unless it be 

 made a section of the latter, with essentially different S hindleg, I think it must 

 be resnscitated. Typically it would contain only a few Indian and (Uiinese .'jpecies 

 (p)y(.ion((ria Swinh. ; bisaiiMfa ^Varr., yoi\ Zool. ii. 98 = orientis Pront, Seitz, 

 Macrolep. iv. 44; cureata Warr., Noi:. Zool. ii. 98, erroneously sunk by Hampson 

 te Rhodostrophia vinacearia Moore), but it has various outliers, in part African and 

 including the new genns about fo be described. Hampson would probably regard 

 them as subgenera of Tanaotrichia, as it seems impossible, in the present state of 

 our knowledge, to assign them distinctive characters which are at the same time 

 constant and shared by both se.xes. AVhether as sections or genera, the following 

 rough key may help to show the jiresent position. Before introducing the new 

 genus, I point out that Eriphrolophu-i differs from it in the long palpus, Somatina, 

 yobilia, and Discoghjpha in the stalking of SC- of the forewiug, etc.* 



The group has in common the rather short but strong palpus, less hairy pectus 

 than the Somatina group, generally smooth scaling, double areole, with SC- arising 

 from cell (rarely even connate with SC'~'', never stalked), H- of forewiug about 

 central, rather short cell of hindwing, SC- usually connate or short-stalked, but 

 never long-stalked. 



1. Ilindtibia in both sexes with two sj)urs 



Dithecodc.s AVari'. (= Mnesithetis Swinh. f). 

 Hindtibia in ? witli more than two spurs ...... 2. 



2. Antenua in c? not pectinate ..... Ditkalami Meyr. 

 Antenna in <S bipectiuate ......... 3. 



3. Antenna in c? with two pairs of branches to eacli joint Tanaotrichia \Varr. 

 Antenna in tj with one pair of branches to each joint . . . .4. 



4. S antennal pectinations short ........ 5. 



<S antennal pectinations long ........ 6. 



o. c? antenna with fascicles of long cilia; ? hiudtibia usually 



with three spurs ...... ] >iscomiosis nov. 



c? antenna without fascicles of long cilia ; ? hindtibia 



always with four spurs - . . . . . Lissohlemma Warr. 



0. ? antenna bipectinate ...... Isoplenia Warr. 



? antenna not bipectinate 7. 



T. S hindtibia without spnrs ...... Anacosymhia Front. 



(? hiudtibia with spurs ...... Epicos'/mbia Wiirr. 



* Bitcoglypha has, however, much in common with the Tanaotrichia gronp, and tbc point of origin 

 of SC may not here be of much significance. Cf. Somatina ajncij/nncta, infra, 

 t Sect. U. only. Cf. £nt. xliv. 292. 



