Explanation of Plates. 179 



Plate LIIL lolana tolas, <$ and $, X 25. The <$ preparation 

 is spread and shows the several parts excellently, 

 but hardly their natural relations to each other. 

 This species gives perhaps the largest 9 external 

 armature I know of amongst Lycaenines, in that 

 respect resembling L. boetica; it appears, how- 

 ever, not to be retractile, not to say eversible ; it 

 contrasts well with the Plebeiids. I am unable to 

 refer it to any recognised tribe of Lycaenines. 



Plate LIV. Fig. 1. I am not quite sure of the species ; I give the 

 figure as another one illustrating the point 

 brought out in PI. XXXII and again in 

 PI. XXXIX. 

 Fig. 2. L. argiolus, another Lycaenine to compare 

 with the Plebeiids ; the armature appears 

 to be slightly retractile, but in no degree 

 eversible (as in the prop in Plebeiids). 

 Plate LV. Fig. 1. L. boetica, <$, x 35, given as the 2 is illustrated 

 on next plate. 

 Fig. 2. L. prosecusa, 9, has a very large armature and 

 seems to be very close to L. boetica as re- 

 gards its retractility (and eversibility as 

 regards its proximate section). 

 Plate LVI. L. boetica, 9, X 25. 



Fig. 1. Armature extended. 



Fig. 2. Armature retracted. The structure here 

 seems almost identical with that in the 

 Plebeiids. In Fig. la" prop " is very 

 evident, but the terminal mass is so large 

 that there is room for little if any rein. 

 This specimen appears to show that the 

 Plebeiid structure is only an extreme form 

 of what obtains more or less in many 

 Lycaenine tribes. 

 Plate LVII. Fig. 1. Lycaena alcon, x 25. 



Fig. 2. Lycaena euphemus, x 25. These appear 

 to be similarly eversible with an invagin- 

 able prop, and support the conclusion 

 expressed under PI. LVI. 

 The following Plates show efforts to pre- 

 serve specimens in cop., all of which were 

 more or less failures, yet something is 

 demonstrated. 



