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NEW THYBIBIDAE, EFIFLEMIBAE, AND GEOMETRIBAE 

 FROM THE AETHIOPIAN REGION. 



By W. warren, M.A., F.E.S. 



Family THYRIDIDAE. 

 1. Dysodia angulata sp. nov. 



Forewings : deep red, with blackish reticulations and dull brown markings ; a 

 donble line near base, anj^led ontwards jnst below middle ; a broad funnel-shaped 

 postmedian fascia, much constricted just below middle, and widening somewhat 

 towards inner margin ; a marginal shade ; the costa marked with an ochreous 

 yellow spot before, beyond, and in the middle of it ; fringe pale yellow beyond cell 

 and below middle, red-brown at apex and on the middle jirojeetion. 



Himlicinys : with the costa broadly brown and a narrow dark streak along 

 margin from anal angle to middle ; two minute white black-edged specks at end of 

 cell ; fringe pinkish white, with a black mark beyond middle angle. 



Underside with the dark markings deeper brown, the paler portions grey-brown, 

 not red ; the basal half of forewings glossy grey from costa to vein 2, traversed by 

 obliiiue brown lines and shades. Head and prothorax dark brown-black ; thorax 

 and abdomen deep red, the latter with a diffuse dark ring towards end ; legs 

 externally dark brown, reddish internally. 



Expanse of wings : 27 mm. 



One S from Sierra Leone, June 1898 (Captain Stevens). 



The species is distingnishable from all others by the contour of its wings. The 

 costa of forewings is notched just beyond the middle, while the hindmargin of the 

 hindwings is bluntly angled at vein 3, convex above from apex and concave below 

 to vein 1. The antennae are quite two-thirds the length of the forewings, thin and 

 perfectly simple. 



2. Tridesmodes ansorgei sp. nov. 



Forewings : white, snbhyaline, tbe lines and reticulations consisting of 

 ferruginous and black scales ; costal edge for two-thirds thickly mottled with 

 fuscous ; 5 more or less connected lines are visible, 2 antemediau, waved, 2 post- 

 median, more strongly sinuous, and a distinct sinuous submarginal line, endiug in 

 anal angle and emitting two spurs to hindmargin at veins 4 and 2 respectively ; the 

 spaces between the lines with short transverse ripples, running mainly parallel 

 to the lines ; one round black dot below apex ; marginal line runnd ajiex as far as 

 middle of hiiuhuargin fine, deep black ; below middle interrupted ; fringe silky white, 

 with faint brown mottliugs in the basal half beyond veins, the whole basal half 

 round apex pale brown ; cell-spot linear. 



Hindwings : like forewings, but the lines less distinct from the reticulation. 



Underside the same. Head, thorax and abdomen whitish. 



Expanse of wings : 24 mm. 



One 6 from Mondo, Uganda, March 11th, 1899 (Dr. Ansorge). 



