new Neotropical GeometmUe. 323 



Very close to IV. flavilucens, Warr., from Peru, but 

 differing in the increase of the dark coloration, which leaves 

 the ochreous band much narroAver (this is particularly notice- 

 able on the underside, where the colours are more sharply 

 defined), the conspicuous white apical marks beneath, the 

 equally conspicuous mallet-shaped mark at base of hind wing 

 beneath, larger cell-spots, and more strongly bent postmedian 

 band of hind wing. Warren's type was a ? , but this 

 differentiation holds also on comparison with a <$ in Coll. 

 Brit. Mus. 



Smileuma, gen. nov. 



Face rounded-prominent, apparently not tufted (more or 

 less abraded in all available specimens). Palpus short 

 (pfaffifracta) or rather short (salediza), quite moderately 

 rough-scaled. Antenna in <$ lamellate, nearly simple. 

 Hind tibia with all spurs. Abdomen not crested. Fore wing 

 triangular, apex moderately acute, termen strongly oblique, 

 as long as inner margin ; cell less than one-half, discocellulars 

 incurved, oblique below, SC 2 arising out of SC 1 , anastomosing 

 with SC 3-4 beyond SC 5 (further beyond in plagifracta) to 

 form a broad simple areole ; It 1 connate with SC 3-5 ; M 1 

 separate from R 3 . Hind wing with termen not very strongly 

 convex, apex therefore slightly but roundly produced; cell 

 short, little over one-third, discocellulars not biangulate, 

 oblique below, SC 2 rather long-stalked, with R 1 , R 2 from 

 middle of DC, M 1 separate from R 3 . Scaling very glossy. 



Type of the genus : Smileuma salediza, Dogn. Ann. Soc. 

 Ent. Belg. xxxvii. p. 575 (Cidaria). 



Nearly related to the preceding genus, distinguished by 

 the simple areole. On Meyrick's tabulations it would fall 

 into the Palsearctic Plemyria as used by that author ( = Ple- 

 myria + Epirrhoe + Eu/ype + Trichodezia) and stated by him 

 to be numerous in South America. It has most in common 

 with Plemyria, sens. str. (type, bicolorata, Hufn.), and Epir- 

 rhoe (type, alternata, Mull. , = sociata, Bork.), but they both 

 have the cell of fore wing normal (one-half), the palpus 

 stronger, the shape of wings and several details of venation 

 different ; while some characters which are not usually 

 regarded as generic — the smooth glossy scaling and the 

 different type of pattern — probably point to a wider evolu- 

 tionary divergence. 



Smileuma plagifracta, sp. n. 



$ . 30-32 mm. — Head, thorax, and abdomen brown- 

 black, the abdomen somewhat paler, with pale segmental 



