ELTMNIIN^. 169 



Genus A.GRUSIA. 



Imago. — Male. Forewing very short and broad, triangular ; costa much arched, 

 apex obtuse ; exterior margin almost erect and very shghtly scalloped, posterior 

 angle rounded ; posterior margin long, with the middle longitudinally folded upon 

 the upperside and covering a scabrous patch of scales below the suhmedian vein, the 

 patch ivitli an erectile tift of hairs arising from the inner end ; cell short, very broad. 

 Hindwing short, and very broad, triangular ; anterior margin arched at the base, 

 apex obtuse, exterior margin obliquely-convex and almost even, anal angle obtuse ; 

 the normal glandular tuft within the cell ; the cell short and broad. 



Type. — A. Esaca. 



The species of this genus are mimics of the Nymphalid butterflies of the 

 " protected " section of the genus Euthalia — of which lepidea, ambalika, Diardi, 

 Andersonii, etc., are representatives. 



According to Mr. W. B. Pryer (Ann. Nat. Hist. 1887, p. 50) the A. Esaca is 

 found in N. Borneo, "in fairly open ground, in sunshine." 



AGRUSIA ANDERSONII (Plate 143, fi^s. 2, 2a, $ ). 



Dyctis Ande)-sonu, Moore, Jouru. Linn. Soc. Zool. 1886, p. 33, pi. 3, fig. 5, $ . 

 Dydis Esaca (part), Marshall and de Niceville, Butt, of India, etc. i. p. 278. 



Imago. — Male. Upperside dark olivescent violet-brown. Forewing with a 

 marginal excurved series of lilacine-grey spots, the three upper of which are of a 

 lengthened oval form, and the three lower pyriform with the point acute. HituU 

 wing with a broad marginal scalloped-edge lilacine-grey band. Underside pale 

 vinous-brown, the apical area of forewings and the exterior marginal area of hind- 

 wings whitish ; covered with numerous darker brown more or less confluent strig^e, 

 which are broadest from the disc to the base. Female unknown. 



Expanse, S 2^ inch. 



Habitat. — Mergui Archipelago. 



This species is, apparently, a mimic of the Nymphalid Euthalia Andersonii. 



Distribution. — A single specimen was taken by Dr. J. Anderson at Minthan- 

 toung, Mergui, in December. 



Indo-Malayan allied species of Ageusia. — A. Esacoides, de Niceville, Journ. 

 Bombay Nat. Hist. Soc. 1892, p. 323, <S . Habitat. Malay Peninsula; Sumatra 

 (Coll. Godman). — A. Esaca (Melanitis Esaca), Westwood, Gen. D. Lep. p. 405, ^ 

 (1851). Hewitson, Exot. Butt. iii. Mel. pi. fig. 5, <S (1863). Elym. Egiahna, 

 Semper [nee Felder], Reisen Philippen, Lep. i. pi. xii. figs. 7, 8, <S (1886). Habitat. 

 Borneo.* Philippines. 



* Not Assam, as has erroneously been stated. 



VOL. 11. October 23rd, 1893. z 



