IOLAUS. 45 



16. Iolaus Iapyx, Hewitson. Plate XVIII. 6 figs. 1, 2. 



Upperside. Male. — Dark brown. Anterior wing with a triangular spot of ultramarine 

 blue at the base. Posterior wing with the anal half blue : the black spot at the anal angle 

 bordered above with orange, below with pale blue. 



Underside grey- white ; white near the outer margin of the posterior wing. Both wings 

 crossed near the middle by a continuous linear band of dark brown [forming a regular segment 

 of a circle) and by a pale submarginal rufous band : the outer margin of the anterior wing 

 rufous, of the posterior wing black. Posterior wing with the black spot at the base of the 

 tails broadly bordered with orange : the anal spot with silver : some conical white spots on the 

 margin marked with brown. 



Exp. 1-i inch. 



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



This species is nearly allied to I. Longinus, from which it differs in the position of the linear 

 band of the underside of the posterior wing. In this species the said band is much further 

 from the outer margin, and is much more regularly curved, forming a complete segment of a 

 circle. It is also nearly allied to /. Mantra, but is of a different colour on the underside, and 

 is without the beautiful silvery blue which adorns the anal angle of that species. 



17. Iolaus Diaeus, Hewitson. Plate XX. figs. 6 27, 28, $ 26. 



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

 Posterior wing with the apex rufous. 



Underside grey. Both wings crossed beyond the middle by a linear rufous band, and 

 an indistinct very pale submarginal band of the same colour. Posterior wing with the two 

 black spots crowned with orange near the anal angle. 



Female like the male, except that it is of a paler hue, that the anterior wing 

 has its centre white and a small black spot at the end of the cell, and that the posterior wing 

 has a submarginal band of brown spots. 



Exp. 1^ inch. 



In the Collection of the East India Museum, from Northern India. 



18. Iolaus Longinus. 



Hesperia Longinus, Fabricius, Ent. Syst. v. p. 430. 



Polyommatus Longinus, Godart, Ene. Meili. p. 634. Lucas, Lep. E.rot. pi. 44. f. 3. 



Bithys Longinus, H'uhner, Zu.tr. f. 933, 934. 



Amblypodia Longinus, Horsfietd, Cat. Lep. E. I. C. Mas. pi. 1. f. 7, p. 110. Westwood in Gen.Diwrn. 



Lep. p. 478. Horsjield <J- Moore, Cat. Lep. p. 45. 

 Amblypodia Pseudolonginus, Doubleday, Brit. Mas. List. Weshvood, Gen. Diurn. Lep. p. 478. Hors- 



field <J" Moore, Cat. Lep. p. 45. 



