456 Miscellaneous. 



seem to be present in O. viridipennis, where in both sexes 

 the pubescence is rather short. 



The following brief synopsis may help to distinguish the 

 species of the genus : — 



1. G. aurieoma, Westw., Griffith's Ciiv. An. Kingd. xv. p. 149, pi. Ixvii. 



fig. 3 (1832). 

 Reddish testaceous ; with hinder two thirds of elytra metallic blue or 

 green. Hah. Penang. 



2. G. bicoloripes, sp. n. 



Reddish testaceous ; with hinder four fifths of elytra metallic blue or 

 green; with tibife, tarsi, apices of femora, and distal eight joints of an- 

 tennae black. -Ha*- Java. 



3. G. viridipennis, Clark, Ann. & Mag. Nat. Hist. (3) xv. p. 146 (1865). 

 Reddish testaceous ; with elytra entirely metallic blue or green. 



Hab. Penang. 



4. G. Chapuisi, Thorns., Rev. et Mag. de Zool. 1875, p. 163. 



Black ; with elytra metallic blue, regularly and strongly punctured. 



Hab. Borneo. 



5. G. basalts, Jac, Proc. Zool. Soc. 1882, p. 58. 



With characters of aurieoma, Westw. (5)- -S«*- Sumatra. 



MISCELLANEOUS. 



Description of a new Species of Butterfly from Taganac Island, 

 N.E. Borneo. By H. Gkose Smith, B.A., F.E.S., F.Z.S., &c. 



Nectaria. nigriana. 



Male. — Upperside reseiribles N. leuconoe, Erichs., but the outer 

 third of both wings is much darker, the marginal and submarginal 

 rows of pale greyish-white spots and irregular markings being 

 almost obsolete, and the veins on the posterior wings, where they 

 cross the pale area of the inner two thirds of the wings, being more 

 widely greyish brown ; both wings are less elongate and compara- 

 tively broader than in N. leuconoe. The underside is also darker, 

 but the pale spots and markings are more developed than on the 

 upperside. 



The female differs from the male only in being larger and 

 blacker. 



Expanse of wings, S Sf, $ 4| inches. 



Hah. Taganac, a small island near the north-east coast of Borneo 

 {Cator). 



A pair only were sent. It is an insular form of N. leuconoe, but 

 the shape of the wings and its much darker general appearance 

 render it, I think, worthy of description. 



