596. MR. H, H. DRUCE ON NEOTROPICAL [June 18, 



There are specimens in the British Musevun from San Paulo, 

 Para, and Tapajos which were sepai'ated fi'om T. cyllarus by 

 Dr. Butler, and I have found a male in the Hope Museum at 

 Oxford labelled " S. America, presented by G. 0. Griffiths." 



Hewitson's description and figure of the under side of T. perola 

 are somewhat inadequate. He writes of the underside (p. 112) 

 " Anterior wing dark brown where the wings meet." In realit}^ 

 there is a large black oval glandular patch which does not extend 

 more than half-way down from the median to the submedian 

 nervure. 



The type male is now in Mr. Godman's collection. 



Thecla trebonia. 



Thecla trebonia Hew. Equat. Lep. p. 63 (1870); 111. Diur. Lep. 

 p. 162, pi. 64. figs. 443, 444. 



Mr. Grose Smith has several specimens from Ecuador in which 

 the blue is of a more purplish hue and more extensive on the 

 fore wing and surrounding, exce]3t along the costal side, the lai'ge 

 black patch of androconia which is placed beyond the end of the 

 cell, thereby giving the insect a difierent appearance. On the 

 under side of the fore w^ing the ultramedian band is more 

 irregular than in typical specimens. 



Thecla uterkudante, sp. n. (Plate XXXV. fig. 9.) 



Male. Allied to T. trebonia Hew., from which it difiers on the 

 upper side in being of a brilliant rich dark blue and in the absence 

 of the conspicuous paler patch at the end of the cell. On the 

 under side the glandular patch on the fore wing is straw-colour in 

 place of blackish, and the interior black and white band is rather 

 broader and commences near the costa in a large triangular white 

 spot. 



Expanse \^ inch. 



Hob. Interior of Colombia (./. Carder). 



Type, Mus. Druce. 



Mr. Godman's collection also contains a specimen from the Rio 

 Minero, Muzo, Colombia, 2500 feet, obtained by Wheeler. 



Thecla ostrinus, sp. n. (Plate XXXY. fig. 6.) 



Male. Closely allied to T. cyllani.s Cr. Differs on the upper side 

 in the outer margin of the hind wing being very narrowly black, in 

 the lobe being very small and blue like the disc of the wing, and in 

 the anal fold being wholly blue. On the under side the ground- 

 colour has a decidedly greenish tinge and the large glandular patch, 

 which is so conspicuous in T. cyllariis, is entirely absent. 



Expanse -^ inch. 



Hab. Cayenne. 



Type, Mus. Godman. 



Easily distinguished by the absence of the glandular patch 

 below. 



