28 Mr. G. T. Bethuiie-Baker's notes on 



leisure was the only thing required to enable me to 

 make the necessary drawings, and so place the species 

 in their correct genus. I have shown, at fig. 1, a profile 

 view of the genitalia of Lyc(ena plicretcs ; this is very 

 fairly typical of the shape of the majority of this genus, 

 a distinctive feature of which is the well-developed clasp, 

 from which arises a sort of forked guide or support, 

 whilst the tegumen is developed into an eared hood at 

 the extremity, attached to two iongish slender arms, 

 which arise at their juncture with the clasps. The hooks 

 in this species are somewhat short and thick, but in 

 many species of the genus they are rather longer and 

 more attenuated, but never, in any of the specimens 

 I have examined, are they so long and conspicuous as in 

 Thecla. In this latter genus, or rather, perhaps, in the 

 w-albtun, and the sassanidcii, Innnlttd groups, the clasps 

 are reduced to a very considerable extent, it being most 

 doubtful if they can be of any service in holding the 

 consort ; whilst the tegumen is largely developed, being 

 rather tunnel-shaped, excavated at the top both back 

 and front, whilst from front of the base arise the two 

 hooks (one on each side), which are remarkably con- 

 spicuous in all these species. Moreover, in the genus 

 Lyccena, there is always a kind of forked guide or sup- 

 port, having its origin in the clasps near their source, as 

 already mentioned ; this, I suppose, acts as a support or 

 guide to the intromittent organ, and is quite wanting in 

 TJiccla, as also in rlijininus, tengstrannii, and pretiosa. 

 Again, the penis itself in Lyccena, after the style of that 

 shown attig. Irt {phcretes), is always short and thick, 

 whilst in the group of Thecla we are now discussing it is 

 long, rather elegant in outline, and with trumpet-shaped 

 lips ; in this respect also the three species herein specially 

 considered follow the latter precisely. 



At figs. 2 to 3/; the genitalia of Thecla sassanides and 

 lunidata are represented, the former a profile, the latter 

 vertical from above ; and before proceeding further it 

 may be well to describe these organs, and also those of 

 Ijyccena, more in detail. 



At fig. 2a will be seen the clasps of Theda sassanides, 

 which are quite diminutive, and probably of but little 

 use for the function they are supposed to perform ; they 

 are roughly isosceles triangular in shape, with the base 

 slightly bowed outwards. 



