Genus Erycina. 95 



The species, which I yet retain under the generic term Erycinat 

 seem to fall into the following seven sections : — 



1. Rhelus, Swain. 



2. Diorina, Morisse. 



3. Mellhoea, VV. W. Saunders, 



4. Rodina, Westwood. 



5. Nirodia, Westwood. 



6. Eaerjjcina, W. W. Saunders, 



7. Riodina, Westwood. 



Of these sections, the 1st and 2nd, Rhetus and Diorina, have 

 been distinguished by the authors whose names stand against 

 them, and are known by the great length of the tail. They pass 

 one into the other without any well-marked division. Section 3, 

 which I name Melibcea, is distinguished by short rounded tails 

 in the males, which have blue metallic reflections on the under- 

 side of the wings. The females where known are dissimilar in 

 colouring and form to the males, and further information respecting 

 them will probably show that the species of this section will form 

 a good generic group. Section 4, Rodina, Westwood, consists of 

 female insects, some of which I have no doubt will prove to be the 

 males of the section Melibcea. Section o, Nirodia, Westwood, is 

 composed of a single female, but it is so different in form and 

 markings to the individuals of section 4, that it is necessary to 

 place it at present in a distinct section. Section 6, Euerycina, is 

 a form of which both sexes are known ; and the posterior wing, 

 attenuated into a long tail, distinguishes it readily from the other 

 sections. This seems to claim generic distinction, but in our pre- 

 sent imperfect acquaintance of the true Enjcinas I prefer to leave 

 it where it is. The same may be said of the last section, 7, 

 Riodina, Westwood, consisting only of the well-known and dis- 

 tinct form Lysippus, of which the female sex has only yet been 

 detected. 



In my former paper I enumerated twenty-five species of Ei-y- 

 cina, since which, if the species falling under the genera Necyria 

 and Lyropteryx be included — four fresh ones have been added — 

 three by Mr. Westwood and one by Mr. Hewitson, making a total 

 of twenty-nine. With the additions which will be found here- 

 after, the species will amount to forty-four. Of these both the 

 sexes are known of ten ; the males only of sixteen ; the females 

 only of twelve^ and six species have the sex undetermined. Look- 

 ing to the amount of unpaired males and females, there can be 

 little doubt, that, hereafter, this number will be considerably re- 



