( 135 ) 



The types of these two insects are, it- seems to me, quite distinct from any 

 of the forms of S. granitata Guen. ; the first line is distinctly curved outwards, as 

 in succosata Zell. Neither is in perfect condition, hut it is possible that they may 

 be identical with Zeller's species, the two examples of which in the British Museum 

 collection from the Zeller collection are almost perfect ; in that case Walker's 

 name SMfomarmorato would stand for all three; but for the present it will be safer 

 to keep them apart as distinct but kindred species. Packard sinks them all as 

 synonyms of granitata. 



Xenimpia gen. nov. 



Foreivings : with costa straight from base to three-fourths, then curved ; apex 

 produced, lihint ; hindmargin with a distinct tooth at the end of the fifth subcostal 

 and third median, concave between the teeth, and more faintly between the ai)ex 

 and the upper tooth, oliliquely curved in the lower half; inner margin sinuous, 

 incurved in middle, bulging at anal angle. 



Hirulwings : with costa strongly sinuous, forming a strongly developed rounded 

 shoulder at base ; the apex produced into a bluntly rounded projection ; the anal 

 angle square; a slight concavity below the apex, between it and the tooth at the 

 end of the second subcostal, and a semicircular cavity opposite the cell. 



Antennae of ? simple ; palpi porrect, second joint loosely haired, third slender ; 

 tongue weak. 



Neuratlon : cell half as long as wing. Forewings with discocelhilar strongly 

 angulated, the lower arm oblique, faint ; first median at seven-eighths, second and 

 third together from lower angle of cell; lower radial from above the angle of the 

 discocellular, upper from top angle of cell ; five subcostals (apparently) on a common 

 stem from shortly before the end of cell. Hindwings with costal rising away from 

 subcostal in the projecting shoulder, curving down and appiroximating to subco>tal 

 for some little distance at one-fourth, then curving away into the costal margin ; first 

 subcostal leaving just before end of cell ; discocellular hardly angulated ; medians 

 as in forewings; no radial. Scaling dense and mealy; in the central area rather 

 diaphanous. 



Type : Xenimpia erosn Wan. 



Xenimpia erosa sp. nov. 



Forewings: whitish, thickly and coarsely dusted, and in parts suffused, with dark 

 mouse-colour ; first line fine, acutely angulated below the costa, from the costa at 

 one-third to inner margin at one-fifth ; second line slightly curved, dark, parallel 

 to hindmargin, from costa at two-thirds to inner margin at two-thirds, followed 

 by an irregular fuscous shade, which is broadest towards inner margin ; subterminal 

 line indicated only by two or three dark spots towards apex; fringe darker; the 

 central area towai'ds the second line, and in a less degree towards the inner line, 

 is whitish, without so much dusting, and semidiaphanous ; it is traversed by an 

 indistinct fuscous cloud, which becomes obsolete towards the costa. 



Hindwings : the same, but with no inner line. 



Head, thorax, and abdomen concolorous. LTiderside like upjier, but tinged with 

 tawny, and with a broad tawny brown fascia in both wings beyond the outer line. 



Expanse of wings : 36 mm. 



(hie ? from the Congo. 



There is also an example unnamed in the British j\Iuseum. 



