1907.J BUTTERFLIES OF THE FAMILY LYC^NID^. 613 



Thecla ATRIUS. 



Thecla atrius * HeiT.-Schafl'. Exot. Schmett. figs. 53-54. 



Tmolus clitumnus Butl. Trans. Ent. Soc. 1877, p. 140, pi. 3. 

 fig. 6. 



Dr. Butler's type does not difi"er in any way from the well- 

 known T. atrius] and in the British Museum was latterly placed 

 by him under that name. 



Thecla calor, sp. n. 



Male. Closely allied to f. atrius Herr.-Schafi\ Upper side : 

 fore wing dull dark greyish brown, not black as in that species ; 

 hind wing pale shining blue, costal margin narrowly whitish. 

 Anal margin whitish, cilia pale. Under side as in T. atrius, but 

 linear bands on both wings inwardly edged with vermilion and 

 broadest on hind wing. Abdomen pale on both surfaces.^ 



Female. Upper side uniform dull brown ; inner marginal area 

 of hind wing bluish grey. A small red spot in the lobe. Under 

 side as in male, but ground-colour paler. 



Expanse 6 $ lyo "^c^^- , tt rr o vz.\ 



Hah. Brazil, Tapajos River; Chapada Campo {H. H. bmith). 



Mus. Godman. 



Types, Mus. Druce. . ^^ . . 



Mr. Smith's specimens were captured m iNovember and 



December. 



Thecla petaurister, sp. n. 



Male. Upper side : diflers from T. calor by inner margin of 

 fore wing being pale shining blue, extending upwards almost to 

 the lower median nervule. Under side as in T. atrius. 



Expanse 1 inch. 



Hah. Quonga, British Guiana {Whitely). 



Type, Mus. Godman. . i, tt j 



We have a specimen which was formerly m the Kaden 

 Collection which is identical with the type but is without 



locality. „ „ ■ x. n 



The last three forms and indeed the following may eventually 



prove conspecific with T. atrius. 



Thecla cos, sp. n. (Plate XXXYI. fig. 13.) 



Male. Allied to T. atrius H.-S. Upper side : fOre wing black, 

 slightly olivaceous in tone; hind wing rich dark shining'^ blue, 

 with the costal, outer and inner margins broadly black. A dull 

 red dot in the lobe. Under side as in T. atrius. 



Female like male, but blue area paler, less shining and more 

 restricted. 



Expanse 6 ? lyV "^ch. -r> ..• i r. • 



Hah. Bartica, British Guiana {H. S. Parish) ; British Guiana 



* Misspelt " atnius " by Hewitson and Kirby. 



