Pyralidae of the Subfamily Hydrocampliife. 4(t3 



wing silvery white ; the base orange-yellow with oblique outer 

 edge ; an obliquely curved orange-^^ellow antemedial band ; an 

 orange-yellow band from end of cell to inner margin, the end of 

 cell tinged with brown and the fovea above it with two brown 

 points on its upper edge, a yellow patch with a white .spot on it 

 beyond it on costal area ; an orange-yellow subterminal band 

 defined at sides by brown, obliquely curved to vein 2, then bent 

 outwards to tornus, giving olf on inner side between veins 4 and 2 

 a yellowish fascia tinged with brown to lower end of cell ; a pale 

 brown terminal band. Hind wing silvery white ; an orange-yellow 

 antemedial band from cell to inner margin ; a curved orange-yellow 

 postmedial band detined by red-brown from costa to vein 1, its 

 outer edge angled outwards at vein 4 ; a sinuous orange-yellow 

 subterminal band defined by red-brown and ending at tornus, its 

 outer edge excurved at discal fold to the narrow orange-j'ellow 

 terminal band defined on inner side by a red-brown line and ending 

 at submedian fold. 



Hub. S. Nigeria, Lagos {Dudyeon), 1 J type. Exp. 14 mm. 



(23/") Ambia niveijjlaffal/s, sp. n. 



S • Head, thorax, and abdomen white mixed with red-brown 

 .and dark brown, the head with dark line between antennae, the 

 tegulse dorsally and patagia at middle with white patches, the 

 abdomen pale towards exti-emity and witli white bands; antennae 

 yellowish ringed with black ; palpi pale red-brown, the 3rd joint 

 white with red-brown band towards extremity ; pectus, legs, and 

 ventral surface of abdomen white, the fore legs tinged with I'ed- 

 brown, the abdomen with faint brownish bands. Fore \\ang 

 yellowish tinged with rufous and irrorated with dark brown ; an 

 inwardly oblicpie blackish antemedial line, excurved above inner 

 margin and with a dark shade before it from subcostcil nervure to 

 inner margin ; an oblique slightly sinuous blackish medial line with 

 a white striga before it in and below the cell, where it is conjoined 

 to a silvery-white patch below the submedian fold extending to 

 inner margin and to the antemedial line ; a quadrate silvery-white 

 spot beyond the cell defined by blackish and a quadrate patch from 

 vein 2 to inner margin defined b}^ blackish at sides, the fovea above 

 end of cell white ; an oblique elliptical silvery- white patch defined 

 by blackish from costa, to which ib narrows, to vein 4 ; an apical 

 white spot, then a curved series of white spots defined by blackish, 

 minute to vein 3, the spots below veins 3 and 2 larger ; cilia red- 

 brown mixed with white. Hind wing yellowish tinged with rufous 

 and irrorated with dark brown ; a broad subbasal silvery- white band 

 defined by dark brown and with red-brown spot on it at inner 

 margin ; a rather lunulate silvery -white spot beyond the cell defined 

 by dark brown ; a rounded postmedial silvery-white patch defined 

 by dark brown from costa to vein 4, a spot below vein 3, and a 

 curved band from vein 2 to above tornus ; a triangular silver^'- 



