312 MR. F. MOORE ON LIMNAINA AND EUPLCEINA. [May 1, 



In both sexes of this species the blue gloss of the fore wing does 

 not extend beyond the submarginal spots ; in this respect they 

 approach nearest /. iraivada, as they also do in the obsolescence 

 of the marginal rows of spots. 



Mr. G. Lewis has recently presented specimens of this species 

 to the British Museum, which he found common in Hong Kong fly- 

 ing over the Lantana. 



4. ISAMIA SINICA, n. Sp. 



Both sexes have a comparatively more triangular form of fore wing 

 than in typical I. superha ; these wings have similar but less glossy 

 blue, the sericeous streak is shorter, tbe discal blue spots and the 

 one at end of the cell small, the submarginal series conspicuously larger 

 and whiter, the marginal row also white : hind wing with two rows 

 of whity-brown ill-defined spots. 



Expanse 3| to 4 inches. 



Hob. S. China. In coll. F. Moore. 



5. IsAMiA MiDAMUs. (Plate XXXII. fig. 5, S •) 



Papilio midamus, Linnaeus, Syst. Nat. ed. x. p. 470 (1/58), 

 xii. p. 765 (1707) ; De Geer, Acta IIolrai8e,ix. p. 209, pi. 6. f. 1, 2, 

 2 (1748); Ehret, Plantge et Papilion. pi. xi., <S (1748). 



Papilio midamus (part.), Linn. Mus. Lud. Ulricse, p. 251 (1764) ; 

 Fabricius, Syst. Ent. p. 479 ; Spec. Ins. ii. p. 52 ; Ent. Syst. iii. 

 l,p. 39. 



Limnas mutabilis midamis, Hiibner, Samml. exot. Schmett. i. pi. 

 24. f. 3, 4 (1806), /maZc. 



Euploea midamus (part.), Butler, P. Z. S. 1866, p. 294. 



Euplcea superha (part.), Doubleday & Hewits. D. Lep. p. 87 ; 

 Moore, Catal. Lep. Mus. E.I. C. i. p. 131 ; Butler, Catal. Fabr. Lep. 

 B. M. p. 2; P. Z. S. 1866, p. 271 ; Kirby, Catal. D. Lep. p. 9. 



Nearest to /. ahpia ; fore wing with larger discal blue spots, com- 

 paratively smaller and less prominent white submarginal and mar- 

 ginal spots ; hind wing with a submarginal and marginal row of very 

 small white spots. 



Expanse 3| to 4 inches. 



Hah. S. China, Canton. In coll. F. Moore ; British Museum. 



The identification of the P. midamus of Linnaeus rests entirely on 

 the first published description in the 10th edit, of the ' Systema 

 Naturae.' 



This description also agrees with the figures (Acta Holm. pi. 6. 

 f. 1, 2), which are those of a female, and which Linnaeus therein 

 cites as an illustration, as pointed out by Mr. Butler in his Mono- 

 graph of Euploea (P. Z. S. 1866, p. 294). Of Linnaeus's other cited 

 illustrations, Ehret's plate xi. also refers to a male of the same 

 species. 



Here, therefore, we have all that is required for fixing the identity 

 of the species in question ; and I unhesitatingly apply it to the form 

 of the superha group here described. 



All recent authors, when referring to the P. midamus of Linnaeus, 



