THECLA. By Dr. M. Deaudt. 783 



Th. vieca Schs., apparently described according to a $, larger than gadira, without a tail, above vieca. 

 blackish-grey, in the basal inner-naarginal part of the forewing lilac-grey, the hindwings white, dusted in lilac- 

 blue with a blackish-grey costal margin and distal margin. Beneath light brown, marked like conchylium (155 i), 

 in the median area broad whitish with a white costal marginal streak. Venezuela. 



73. Laeta- Group (Erora Scudd.). 



Th. laeta Edw. (= clothilde $ Edw.) (155 i) is the typical representative of a small group probably laeia. 

 comprising only this one species, but varying a great deal. The name-type is distributed in North America 

 but apparently very rare. Above brown, towards the base suffused by blue; beneath fawn-coloured with post- 

 discal bands and such at the margin of the hindwings, composed of tiny, orange-red, distally white-bordered 

 spots. Jt flies from Quebec to West Virginia and Arizona; there are no details known as to its life-history. — 

 quaderna Heic. (155 i) from Mexico is above abundantly dusted in a violettish-blue, with small dark spots before fjuaderim. 

 the distal margin of the hindwings and orange fringes. The colour beneath is of a shade like a grey-horse, distally 

 with a greenish shine. This is probably the $ of attalion Godm. <£• Salv. (155 i) which is quite brown above, atlaUon. 

 with tiny, blue, submarginal spots of the hindwings. — aura Godm. <& Salv. (155 i) from Co.sta Rica and Panama aura. 

 is likewise similar, but black above, the hindwings only in the centre blue without a blue submarginal ; beneath 

 the colour is more bluish-grey, without the red small submarginal spots, and the median line of the forewing 

 is placed nearer to the distal margin. 



Th. phrosine Drc. (146 e) is a peculiar small species, which perhaps belongs into this group; above phmsine. 

 dark-brown, the fringes of the hindwings white. Beneath white with a faint silvery reflection, in the disc of 

 the forewing a bluish tinge; the postdiscal band sonsists of single, tiny, copper-brown spots, on the hindwings 

 there are besides minute submarginal dots. Abdomen beneath white. Peru, Bolivia. 



Th. castrena Jones (156 d) differs above from phrosine by lilac-blue scales being strewn on the base casirerM. 

 of the proximal margin of the forewing and on the hindwings. The ground-colour beneath is light lilac-blue, 

 in the $ more yellowish-grey with a similar marking as in the former, though more copious. Castro (Parana). 



74. Nana- Group. 



Th. nana Fldr. (155 k) is a most peculiar species not to be mistaken for any other species. The shape nana. 

 of the wings peculiarly high. The colour is above dull indigo-blue with a slight lilac lustre; the whole costal- 

 marginal half of the hindwing is of a light-grey lustre and in its basal half there is a roundish scent-spot of the 

 same colour. Beneath light bluish-green with a faint lilac shine, in the inner-marginal area of the forewings 

 brownish-grey; on the hindwings with a fine white lunular line, towards the inner-margin proximally bordered 

 by blackish, at the acute anal angle a small black spot; there is no tail. Forehead brown, palpi at the sides 

 green. Colombia. 



Th, facuna Heiv. (156 a) is larger, of a more slender shape of the wings. Forewings above blackish- facuna. 

 brown, in the basal inner-marginal part as far as the middle of the cell suffused by indigo-blue; hindwings in 

 the disc of a violettish-blue lustre, from which the large brown scent-spot stands out in bold relief, fillmg up 

 the whole basal part, inclusive of the cell; the costal margin itself is lustrous lighter brownish. The $ is duller 

 and more extensively blue. Beneath emerald-green; forewings unmarked, in the inner-marginal part brown; 

 the hindwings with an indistinct postdiscal line of blackish, distally lighter, though not white-bordered, small 

 streak-spots. Fringes brownish, near the anal angle black, at the base white; at the tip a small black spot. 

 Forehead, palpi and tibiae green, legs black, wreathed in white. Rio Grande. 



Th. senta sp. nov. (156 a) greatly appi'oximates the preceding, it is larger, the distal margm of the senta. 

 hindwings more convex, the wings dusted in a purer blue, the hindwings much more extensively, because the 

 distal and proximal margins are only narrowly black. The costal margin of the hindwings dark-brown, in its 

 basal half we notice the much smaller, red-brown lustrous, though little contrasting scent-spot of an oblong 

 shape. Beneath the green is a shade more yellow, of the postdiscal line there is only the beginning of a W left 

 at the anal angle, behind it is a small black spot. Forehead, palpi and femur green. 1 ^ from Colombia (Caiion 

 del Tolima) from the Coll. Fassl. 



Th. opisena Drc. (155 k) is a smaller, ultramarine species with a broadly \ elvety-black apex and opisena. 

 distal margin. Beneath emerald -green, often only with the beginnings of a postdiscal at the proximal angle 

 of the hindwings, which, however, may also be extended as far as the costal margin; a small spot and the fringes 

 at the anal angle are black, occasionally with an orange-red upper tinge. Colombia. 



Th. biblia Hew. (155 k). Above plainly brown, beneath of delicate bluish green, like all the followmg biblia. 

 species with a peculiar lilac-blue shine of a silky or mother-of-pearl lustre; at the anal angle of the hindwing 

 a tiny black spot. Amazon. 



Th. ares Godm. cfc Salv. (155 k) greatly approximates the preceding, bemg above suffused with a ares. 

 purple-violet; on the green under surface there is an indistinct, whitish postdiscal and also at the cell-end a 

 streak. Forehead green. Guatemala, Amazon. 



