262 MESSRS. J. J. JOICEY AND G. TALBOT ON 



end posteriorly ; a large, somewhat quadrate spot beyond end of 

 cell divided by vein 5, the lower part in 4 larger than the upper, 

 the inner edge slightly curved ; a small spot above it in the angle 

 of 6 ; an elongate oval spot below it at base of cellule 3. Hind 

 loing paler in the costal area, A black patch of androconia in 

 base of cellule 7, 9 mm. long. Red basal streaks in 1 a, b, c, and 

 in the cell. In a second specimen, from Bolivia, they are a little 

 reduced, but in a third, from the Upper Amazon, the red streaks 

 are greatly enlai'ged and more extended, the one in the cell filling 

 its base and whole upper part, forked at the end and forming two 

 short streaks in 4 and 5 ; there are also two additional short 

 streaks in 2 and 3. 



Underside with paler ground-colour. Fore wing with markings 

 as above, and a white dot at base of costa. The black patch of 

 androconia, common to all membei-s of the genus, is longer than 

 in other species and does not touch the median vein ; it is placed 

 obliquely in the submedian area, whereas in other species it is 

 parallel to vein 2 ; the inner margin is shining grey ; a white 

 subterminal line from tornus to vein 2 and represented above 

 this vein by a few scales. In the species with increased red on 

 hind wing above, the basal fore-wing stripe is only represented 

 by a few scales. Hind wing with brick-red stripes between the 

 veins ; base of costa and precostal area brick-red, joined to a 

 stripe bordering vein 8 in 7 ; stripes in 1 c, 2-6, nail-headed 

 distally, the one in 4 joined to a broader cell-stripe, stripe in 1 a 

 filling the cellule ; a subterminal series of white spots between 

 the veins. In the specimen with increased red on hind wing 

 above, the stripes are broader below. 



Antennae black-brown, club and inner surface yellow-brown ; 

 palpi black, first and second segments white at sides ; head, 

 thorax, and abdomen black, collar with white dots ; abdomen 

 below dark brown, legs dark brown, coxse with white tufts. 



Length of fore wing 35 mm. 



Ilab. Jurua River, Brazil (type and paratype) ; Bolivia (1 J ). 

 This latter locality is doubtful. 



We propose the name radiata for the aberration with increased 

 red rays on the hind wing above (PI. I. fig. 1 a). 



This species agrees in structure with other species of the genus, 

 possessing the characteristic inflated' basal part of the costal vein 

 of the fore wing, and also the curved lower discocellular touching 

 the cell before vein 3. In pattern, its relationship with other 

 species may perhaps be traced in the fore-wing cell-streak, the 

 white mark at base of costa on fore wing below, the white sub- 

 terminal mark near tornus, the red subcostal stripe on hind wing 

 below, and the series of white spots which may represent the 

 subterminal line. The colour of the palpi and antennee also 

 shows aflinity with other species. 



The chief feature of this species lies in its i-emarkable mimetic 

 resemblance to the Heliconine genus Eiteides as represented by 

 U. eanides Stich. and its form aides Stich., which inhabit the same 



