SELENISTIS TRISTYLA. 393 



Hah. Mashonaland, Salisbury (Marshall), 1 ^ type ; Transvaal, 

 White 11. (Coohe), 1 cT , Bultfontein (Jaiise), 1 $ ; Orange R. CoLONr, 

 lilocmf'ontein {Eclcersley), 1 cJ ; Zpluland, Lr. Tugela (iie?/»o/c?s), 



4 J, 2 5; JS'atal, Staiiger {Leigh), 1 c? ; C. Colony, Deelfontein 

 {Slotjgctt), 1 cJ , Heald "Town (Jim F. Barrett), I 6 , 1 $ • 

 Exjj. 26-30 millim. 



Genus TRISTYLA. 



Type. 



Tnstt/la, Smith, Ins. Life, v. p. 332 (1893) alhoplagiata. 



^Proboscis fully developed ; palpi porrect, the 2nd joiot extending about the 

 leiifith of head and iiioderatelj' fringed with scales below, the 3rd short ; frons 

 wit li corneous process produced to a long point at middle, to two short points 

 at sides and a short poiur below, a corneous jjlate below it ; eyes large, round ; 

 antenna3 of female almost siuiple; thorax clothed entirely with scales, the 

 prothorax without crest, the metathorax with large spreading crest ; tibiae 

 smoothly scaled; abdomen without crests. Fore wing rather long and narrow, 

 tiie apex rounded, the termen obliquely curved and not ereuulate ; veins 3 and 



5 from near angle of cell; 6 from upper angle; 9 from ItJ anastomosing 

 with 8 to form a short areole ; 11 from cell. Hind wing witli veins 3,4 

 from angle of cell ; o obsolescent from just below middle of discocellulars ; 

 (3, 7 stalked ; 8 anastomosing with the cell nearly to middle. 



4856. Tristyla alboplagiata. 



Tristyla alhoplagiata, Smith, Ins. Life, v. p. 332. fig. 46. 6 (1893) ; Dyar, 

 Cat. Lep. N. Am. p. J 83. 



2 . Head white, the palpi above and frons at sides tinged with 

 rufous ; thorax white tinged with rufous, the patagia with some 

 black scales near upper edge ; the metathoracic crest bright 

 rufous ; tibioe and tarsi banded with fuscous brown ; abdomen 

 whitish suffused with ochreous brown. Fore wing white suffused 

 with grey-brown mixed with some rufous except at base and on 

 termen ; subbasal line represented by a black striga from costa ; 

 antemcdial line black slightly defined on outer side by white. 



Fig. 184. — Trisfj/la alhoplagiata , 5- t- 



oblique, waved ; orbicular represented by a white patch extending 

 to costa and defined on outer side by a black bar in cell ; rcniform 

 a large white patch extending to costa, its lower half strongly 

 defined by black ; a black point on middle of costa ; iwstmedial line 

 closely approximated to reniform, bent outwards below costa, 

 incurved in discal fold, strongly incurved and waved below vein 4 ; 

 subterminal line represented by the waved edge of brown area and 

 with slight rtifous patches beyond it below costa and in discal and 



