106 DIURNAL LEPIDOPTEKA. 



138. Thecla tephraeus. 



Thecla Faventia, Hewitson. Plate XLIII. 3 figs. 172, 173. 



Bithys tephraeus, Hilbner, Zutr. f. 959, 960. 



Thecla tephraeus, Westwood, Gen. Blum, Lep. p. 484. 



Upperside. Male. — Glossy blue. Anterior wing with the apical half dark brown: the 

 diseal spot large, round, rufous. Posterior wing with two tails (one very short) : the costal 

 margin broad, rufous-brown : the outer margin dark brown, narrow. 



Underside grey. Both wings crossed near the outer margin by a band of linear white spots 

 slightly bordered inwardly with brown, both with a submarginal band of less distinct white 

 spots bordered outwardly with brown, short on the anterior wing : the outer margin brown 

 bordered inwardly with white : anal angle with the lobe black, a black spot between the tails 

 crowned with orange. 



Exp. l^inch. 



In the Collection of W. C. Hewitson, from Venezuela. 



When figuring my T. Faventia I had passed over Hiibner's figure, not supposing that it 

 could (with the broad border of white on the underside of the posterior wing) be intended for 

 the same species. I now believe that it is : the transverse bands of both (which are, in their want 

 of relief of brown border, different from those of any other species) exactly agree. The sub- 

 marginal white of Hiibner's figure is probably exaggerated. I have found it quite impracticable, 

 with the greatest care, to represent the transverse bands with the truth and delicacy of nature. 

 It is quite necessary to leave some trace upon the paper for the guidance of the colourer instead 

 of trusting to the accuracy of his eye alone ; and this is of necessity often too strongly de- 

 fined. My aim has been as much as possible to give the position of each spot in relation to its 

 neighbour. 



139. Thecla Empusa, Heivitson. Plate XLII. <s figs. 158, 159. 



Upperside. Male. — Blue. Anterior wing with the costal margin and more than the 

 apical half dark brown. Posterior wing with one tail : the costal margin rufous-brown, the 

 outer margin dark brown, narrow. 



Underside pale grey. Both wings crossed beyond the middle by a linear band of white 

 bordered with brown, both with a siibmarginal band of brown spots : anal angle with two 

 spots : one marked at its base with black, the other touching the lobe which is black. 



Exp. 1-j^y inch. 



In the Collection of W. C. Hewitson, from the Amazon (Parii). 



Nearly allied to T. tephrasus, but differs from it in being without the diseal spot, andalso in 

 having the transverse band on the underside of the anterior wing much shorter. 



