( 454 ) 



before oiie-tliird ; median from two-thirds of oosta to middle of inner margin, onfc- 

 curved and iudistiiii'tly waved, well be^-ond the small and obscure cell-dot ; outer 

 line, tliread-like, at five-sixths, marked with darker scales on the veins, oblique 

 outwards to vein 7, then vertical to vein 6, incurved to vein 4, and with another 

 sinus inwards on snbmedian fold ; submars;inal pale line hardly visible : marginal 

 line fine, dark, interrniited at veins : fringe grey with distinct blackish dots at base 

 beyond veins. 



Iliiididnys : like forewings, but without basal line. 



Underside mnch darker, thickly suffused with fnscons grey, with all markings 

 darker. Vertex, antennae, collar, and thorax paler grey than wings ; face and 

 palpi black ; abdomen discoloured, probably grey like wings. 



Expanse of wings : 26 mm. 



One ¥ from Snapure, Venezuela, October 1900 (Klages). 



The insect bears some resemblance to Ptychop. lowfipcddta Warr., but the 

 position of the median line of forewings is quite different. In both wings the hind- 

 margin is subcrenulate, more conspicuously so in the hindvvings, wliich have a slight 

 tooth at vein 4 ; veins 6 and 7 of hindwings stalked. 



.50. Arhostia pulverata sp. nov. 



Forewings : dingy grey, speckled with black ; the lines obscurely indicated in 

 dark grey ; the first curved at one-third, the second at three-fourths, curved out- 

 wards towards hindmargin, then inwards to below discal spot; cell-s])ot dark grey ; 

 median and snVunarginal lines hardly traceable ; fringe light and dark grey ; no 

 marginal dots or line. 



lliiuhcings : the same. 



Underside of forewings dark grey, of hindwings pale grey, both dark speckled, 

 with the cell-spots and lines barely indicated. Head, thorax, and abdomen like 

 wings ; face and palpi dark brown. 



Expanse of wings : 19 mm. 



One ? from (Jarobas, Pern, 2500 ft., March 1S99 (Simons). 



Forewings elongate ; hindmargin oblique ; hindwings with hindmargin indented 

 beyond cell. 



•51. Craspedia crenatilinea sji. nov. 



Very much like umhilicata Fab., with which it has doubtless been confounded, 

 as the forewings possess the small dark aj)ical spot of that species ; it may be 

 distinguished not only by its larger average size, but mainly by the crenulated, not 

 undulated, outer line of both wings. 



Expanse of wings : 28 mm. 



One ? from Hnamachuco, Pern, November 1899, 3200 ft., dry interval (Simons). 



Guenee gives 2't mm. only for his uiiihilicat((, which he snpjioses to be identical 

 with the species of Fabricius ; Walker's huloctaria is 22 mm. in expanse, and 

 niyroajjicata of Thierry-Mieg is also 20 mm. They all speak of the outer line 

 as undulated. Mr. Schaus detected two examples of the present form among his 

 umliiliritfa. 



.52. Craspedia falcataria sp. nov. 

 Forcicings : dull chalk-white, finely dusted with black atoms, especially along 

 the course of the lines, which are ochreous grey, all oblique parallel to the oblique 



