382 NOVITATES ZOOLOOICAE XXIV. 1917. 



15. Semaeopus geminilinea spec. nov. 



<S, 22-24 mm. Similar to mitranaria Wallc. (List Lef. Ins. xx. 241). 



Forexohxg darker, the irroration being much stronger and mixed, especially 

 in anterior region, with grey ; costal edge partly blackened ; veins partly 

 darkened ; median line stronger, followed distally (at '5 mm.) by a second, 

 similarly formed line ; the oblique subapical hne (from eosta to termen at R') 



accompanied distally by some grey shading. Hinchving strongly shaded in 



middle \\ith whitish pearl-grey ; tornal patch of ground-colour much less sharply 

 defined, being shaded — especially at tornus — with grey, the hne which bounds 

 it proximaUy rather strongly dentate. 



Underside darker than in mitranaria. median hne of hindwing much more 

 proximally placed (close to cell-mark). 



Calama, Rio Madeira, below Rio Machados, Augu.st — October 1907 (W. 

 Hoffmanns). 2 $$ in coll. Tring Museum. Also an old and damaged cJ merely 

 labelled " S. America." 



16. Semaeopus plumbeostrota spec. nov. 



Heterephyra plumbeostrota Warr., MS. 



(J ?, 27-30 mm. Larger than geminilinea Prout. 



Forewing broader, with distal margin more strongly curved ; markings 

 similar, including the geminate median line ; antemedian hne angulated on M ; 

 cell-mark less obUque than in mitranaria and geminilinea ; a similar mark with- 

 in the cell ; the space between these, together with the entire posterior half of 

 wing from the antemedian to the postmedian line occupied by a violaceous- 

 plumbeous suffusion ; tornus and subapical band similarly suffused. Hind- 



loing without the whitish pearl-grey shading, thus coloured more as in mitranaria, 

 but with the ill-defined distal area of geminilinea ; distal edge of basal patch 

 more curved than in either of the aUies, tornal patch broader. 



Aroewarwa Creek, Maroewym Valley, Surinam, April 1905, ^ type. May 



1905, $ ; San Esteban, Venezuela, June 1909, $ ; Fontc Boa, Amazons, August 



1906, 9. All in coll. Tring Museum, collected by S. M. Klages. Also a ? from 

 Rio Chucurras, Rio Palcazu, E. Peru, 320 m. (W. Hoffmanns) in the same 

 collection. 



17. Semaeopus exypna spec. nov. 



(J, 32 mm. Face black on upper half, pale fawn-colour on lower. Palpus 

 with third joint very short ; black, beneath pale fawn-colour. Antenna pec- 

 tinate, the branches mostly over twice diameter of shaft. Thorax, abdomen, 

 and legs fawn-colour ; fore-femur and tibia blackened on inner side ; hindleg 

 with very long pencil of pale, shghtly ochreous-mixed hair, reaching almost to 

 end of tarsus, tibia and proximal part of tarsus dilated and thickly clothed, the 

 slender exposed end of tarsus extremely short. 



Forewing with termen waved, more obUque in posterior part than in 

 anterior ; SC arising well before end of cell ; fawn-colour, with very fine and 

 inconspicuous darker irroration ; antemedian and median lines rather weak, 

 irregularly crenulate ; antemedian obUque outward from beyond one-fourth 

 costa, marked with a dark dot on crossing SC (at base of SC), with a pronounced 



