436 LIEUT.-COL. C. SWINHOE ON LITTLE-KNOWN [June 17, 



marginal row of spots on the veins on the hind wings above ; they 

 vary much in the ground-colour of the wings, and many are 

 albinos. 



This is a very distinct species, and though allied to, is quite 

 distinct from, T. halimede, Klug, more especially in the female. 



Expanse of wings, c? 1^^^ inch, $ 2 inches. 



In coll. C. Swinhoe. 



2. Teracoltjs LEO, Butler (Plate XXXIX. d", f. 3), Ann. Nat. 

 Hist. ser. 3, vol. xvi. p. 397 (1865), though standing in his revision, 

 P. Z. S. 1876, p. 133, as a synonym to T. halimede, is also, I believe, 

 a distinct species. Mr. Butler's type came from the White Nile, 

 and I have another identical with his type from Harkeko, and in 

 both the apex and outer border are nearly colourless and very 

 different from both King's plate or description of T. halimede 

 (which comes from Arabia) and from mine. Probably a still greater 

 difference will be found in the female when it is discovered. I give 

 figures of all three. 



In coll. B. M. 



3. Teracolus pleione, Klug, Symb. Phys. pi. 8, figs. 7, 8 

 (1829). 



Aden, December to May. 



Of this very rare species I have a series from Aden. The colora- 

 tion in King's plate is very bad, and gives no idea of this very 

 beautiful insect. 



The females vary very much in colour — some are bright orange, 

 some pale, and some pure albinos. 



4. Teracolus miriam, Felder, Reise der Nov., Lep. ser. 2, 

 p. 190, n. 186, pi. 27. figs. 3, 4 (1865). 



Aden, December to March. 



This is put in Mr. Butler's revision as a synonym to the preceding 

 species, but it is undoubtedly quite distinct. It differs in both sexes 

 in having no border whatever to the hind wings, and in this 

 important character there is no variation in the twenty examples 

 before me. 



In coll. C. Swinhoe. 



Group. 6. Type Teracolus faustus, Olivier. 



5. Teracolus faustus, Olivier, Voy. dans I'emp. Ott,, I'Egypte 

 et la Perse, Atlas, pi. 33. figs. 4, a, b. (1801). 



T.faustina, Felder, Eeise Nov., Lep. ii. p. 190, n. 187 (1865). 



T. oriens, Butler, P. Z. S. 1876, p. 134, pi. vii. fig. 7. 



I think both T. faustina and T. oriens must be taken out of the 

 list of TeracoU and must become synonyms of T. fcnistus. I have 

 examined the types with the assistance of Mr. Butler, and have 

 compared them with a long series of T.fatcstus. 



