A KEVISION OF THE ORIENTAL HESPERIID^. 215 



it agrees well with the description and figure of Noiocrypta monteithi, Wood-Mason 

 and de Niccville (Jour. As. Soc. Beng. 1886, p. 391, pi. xviii. figs. 3, 3 «, 2). As, 

 however, Herr Snellen tells us that this female " is certainly the other sex [of his 

 P. dissimilis], being bred from the larva by Mr. Piepers," we do not feel justified in 

 placing it in the genus Notooypta as we should have done. 



We have seen a female from North Borneo in coll. Rothschild which agrees with the 

 description and figure of N. monteithi, and is similar to Herr Snellen's female. 



ACEEBAS. 



Acerbas, de Niceville, Jour. Bomb, Nat. Hist. Soc. 1895^ p. 381. Type anthea, Hew. 



This genus was established by Mr. de Niceville for the Ilesperia anthea of Hewitson. 

 We associate with the latter species three others which in form, colour, and pattern 

 resemble it more than they do any other species known to us ; they differ, however, 

 from anthea in wanting an alar sex-mark in the male, and from that species and each 

 other in venation. 



We distinguish the species as follows : — 



1 (2) Cell-spot normally absent from fore wing. Cell of hind wing at 



least half as long as the wing. Disc of fore wing below in the 



male covered with modified scales anthea, Hew. 



2 (!) Cell-spot normally present in the fore wing. Cell of hind wing 



distinctly less than half as long as the wing. No alar sex-mark 

 in the male. 



3 (6) . Base of cell 4 about one-fourth as long as the base of cell 3. Band 



on the hind wing below dull white. One pale spot in cell of 

 fore wing near its upper edge. 



4 (5) . White band on hind wing above evanescent towards the costa. Dark 



part of underside plain brown. Pale band on the hind wing 



below white throughout, a little contracted next the costa . . . martini, Dist. 



5 (4). White band on hind wing above broad, sharply defined, abruptly cut 



short at vein 6. Dark part of underside brown, with a distinct 

 purple shade, which is strongest in the apical region of the fore 

 wing. Pale band on hind wing below white, becoming yellow in 

 cells 7 and 8, not contracted next the costa duris, Mab. 



6 (3). Base of cell 4 about half as long as the base of cell 3. Band on 



hind wing below glistening white. Two pale spots in cell of 



fore win" 7iitidifasciata, n. sp. 



! Acerbas anthea. 



Hesperia anthea, Hewitson, Descr. Hesp. p. 29 (1868). 



Plesioneura? anthea. Distant, Rhop. Mai. p. 404, pi. sxxv. fig. 32 (1886). 



? Carystus tagiadoides, Mabdle, sec. spec. comm. 



Hah. Pulo Laut {Boherty). 



2p2 



