H. Sauter's Formosa Geometridae. Suppleiumt 287 



fonnosana. figuring it on pl. ol], fig. 3, as formosanits. The namc- 

 tA.npical aspersa is only kno\\Ti to me from Burma and the Malay 

 States; the type locality ,,Padang" should read ,.Padang Renga>, 

 Malay Pcninsula" and ,, Sumatra" (sec Lep. Cat. 8, p. 52) must 

 bc provisionally delcted. 



4. Derambila saponaria fragilis Bull. — ^, Kankau (Koshun), 

 3912. 



Subfam. Hemitheinae. 



7. Pingasa ruginaria (iucn. — ^, ( hosokei, 1914. 



The face not dark, the wings beneath with very slight }ello\v 

 proximally. These tendencies are perhaps racial on Formosa, 

 or at least the lattcr, but the face is variable in W. Asia and Africa. 



9. Terpna taiwana \\ ikman. — \ ^, Chosokei, 1914. 



14 bis. Thalassodes quadraria Guen. — 1 c^, Chosokei, 1 $ 1914; 

 Kosempo, Oktober 1911. 



Xotwithstanding Oberthür's valuable work, the clucidation 

 of this name of Guenee's remains as problematical as ever. His ,^, 

 which was certainly his t^-pc, being first and most fully described, 

 was very likely of a different spccies from his $, of which we only 

 read: ,,$ semblable, mais ä apex non falque." But the said ^ is 

 lost (teste Oberthür in litt., 12 January 1917) and it was only 

 possible to figure the $ (Ch. Oberth., Et. Lep. XII, p. h2. 

 t. CCCLXXXIV, f. 3222 — „3" on p. 82 is a misprint), which. 

 moreover, is in bad condition. This may possibly represent the 

 species wliich has been passing under Guenee's name, though 

 the bend in the distal margin of the hindwing is rather slight and 

 the postmedian linc is partially, the other markings whoUy, obli- 

 terated. To add to the uncertainties, both Guenee's examples 

 lacked authcntic locality. I continue to use the name for the 

 species with non-dilated ^ hindtibia, reddish face and subquadrate 

 hindwing, the first of these points being brought out in the author's 

 generic diagnosis, which thercfore cannot liave been drawn up 

 fiom his first three species (now referred to Prasinocyma), neither 

 from hyraria nonnarinaria (of which he only knevv the $), nor from 

 pilaria (where he expressly indicates an exception) and must 

 have referred to quadraria or veraria — probably to both. The 

 smaller !v, previously (Ent. Mitt. III, p. 239) under falsaria, 

 cvidently belongs here also; the face, which I took to be disco- 

 loured from green, was probably oiiginally red-brown. The present 

 species is distributed in India, Sumatra, Borneo, Celebes and is a 

 very likely one to have been acquired by Guenee. Th. scmihyalina 

 Walk. (= viridicaput Warr.), with a similar ränge, is possibly 

 merely a form of this quadraria, in gcneral of a smaller size, with 

 a weaker bend in the distal margin of the hindwing. But 1 fancy 

 its $ has the 3"^'' Joint of the palpus slightly shorter still and perfect 

 spccimens generali}' show a whitish dorsal line on the abdomen, 

 suggcsting that rubellifrons Warr. (Xew Guinea) and grammonota 

 l'rout (Kook Island and Solomons) may be eastern races of it. 



11. !I<ft 



