100 KHOPALOCERA. 



All three discocellulars are present, and all are long, the lower (somewhat atrophied) the 

 longest, the upper longer than the middle. The cell is thus unusually long, and extends 

 far towards the apex of the wing. There is a large stigmatic patch of closely-felted 

 scales over the region of the first median branch, and the median nervure is considerably 

 bent inwards between its branches to receive it. The palpi have a long slender terminal 

 joint; the middle joint is thickened slightly in the centre, the basal joint is shorter 

 than the middle one and considerably dilated. The femur and tibia of the front legs 

 are subequal, the former being somewhat swollen and the latter distended towards the 

 distal end and bearing two prominent spines beneath. The tarsus consists of five joints, 

 the first being equal to the other four together; all except the terminal joint are thickly 

 set with short strong spines on the under surface, with a somewhat prominent pair at 

 the extremity of each joint ; the terminal fifth joint bears a pair of well-developed claws 

 and a pulvillus, but paronychia are apparently wanting. The secondary sexual organs 

 consist of a well-developed tegumen with two strong overlapping hooks, as in Thecla 

 generally ; the harpagones are long slender rods ; the penis is long, extending backwards 

 into the body for more than half its length. 



We have no female of T. lebena. 



The structure of the front legs in this genus is very remarkable, the fusion of the 

 joints of the tarsus and the elimination of the claws usual in Lycgenida?, and indeed in 

 Nymphalidae and Erycinidee as well, has in this instance never been carried out. On 

 the other hand, the development of a spiny under surface to all the joints except 

 the last is carried much further than in the fused tarsus usual in LycsenidEe. 



l. Theclopsis demea. 



Thecla demea, Hew. 111. Diurn. Lep. p. 180, t. 70. ff. 533, 534 \ 



Alls Missime cyaneis, anticis eosta ad basin apice et margine externo nigris ; stigmate nullo ; posticis margine 

 externo anguste nigro, area abdominal! anguste nigra : subtus fuscis viridescente suffusis, linea communi 

 discali mtrorsum nigncanti-fusca, extrorsum alba, in posticis fracta ad marginem internum angulata 

 lobulo anali nigro, mtrorsum rubro atomato, macula rubra inter ramos medianos puncto nigro, inter eoa 

 macula fusca albo atomata. 



5 nobis ignota. 



Hob. Nicaeagua, Chontales {Belt ^.—Colombia. 



Though differing in many respects, the broad elongated cells of this and the following 

 species show a relationship to Thecla lebena of Hewitson, from which, however, they may 

 be at once distinguished by the much greater extension of blue on the upper surface 

 and the absence of the large black spot on the primaries beneath. We have a 

 male specimen which formed part of Belt's Nicaragua collection from Central 

 America, and two of the same sex from the interior of Colombia, where they were 

 obtained by Mr. Wheeler. 



