1880. J LEPIDOPTERA FROM FORMOSA. 689 



Under surface greyish brown, with cupreous reflections; wings with 

 whitish fringe, traversed by a grey hue and with a yellowish basal 

 line. Expanse of wings 9 lines. 

 Three examples. 



144. Nephopteryx hyemalis, sp. n. 



Primaries shining slaty black : secondaries pearly white, trans- 

 parent ; costal border and marginal line brownish ; Cringe traversed 

 by a grey line : thorax slaty black ; abdomen brown. Primaries, 

 costal border of secondaries, and body below sericeous grey. Expanse 

 of wings 1 1 lines. 



One slightly broken example. It is most nearly allied to N. semi- 

 nivella. 



14.5. Pempelia zinckenella. 



Phycis zinchenella, Treitschke, Schmett. Eur. ix. 1, 201 (1832). 



Assara albicostalis. Walker, Cat. Lep. Het. xxvii. p. 80 (1863). 



Modiana scitivit talis. Walker, I.e. p. 83 (1863). 



Alata andcalis. Walker, I.e. p. 108 (1863). 



Crambus sabulinus, Butler, Ann. & Mag. Nat. Hist. ser. 5, vol. iv. 

 p. 455 (1879). 



One specimen. This European species seems to come from all 

 parts of the world : the specimen upon which Walker founded his 

 genus Assara is from Borneo, that on which he founded his genus 

 Modiana from Australia, those upon which he founded his genus 

 Alata ivom St. Jago and Sierra Leone; and the example which 

 (misled by its long palpi) I described as a Ci-ambus was from Japan. 

 It now comes from South Formosa ; and we have an example in the 

 Museum collection from Espirito Santo in BrazU. 



Ceratamma, gen. nov. 



Allied to Pempelia, but the basal joint of the antennae thicker; 

 the second joint large, and covered on both upper and under surfaces 

 by a flattened tuft of hair-like scales ; frons terminating in a conical 

 process projecting downwards ; palpi about as long as in P. zinc- 

 kenella, but projecting obliquely downwards ; neuration as in Pem- 

 pelia. 



Type C. hobsoni. 



146. Ceratamma hobsoni, sp. n. 



Primaries above greyish brown ; basal fourth dark brown, limited 

 externally by an orange oblique stripe, margined internally with black 

 and externally with pearly whitish : secondaries pearly white, costal 

 border, outer margin, and a line on the fringe grey : body sericeous 

 greyish brown. Under surface sericeous greyish brown, the secondaries 

 becoming white towards the abdominal margin. Expanse of wings 

 85 lines. 



Four examples, all more or less rubbed, but showing the markings. 



