266 MR. p. MOORE ON LIMNAINA AND EOPLCEINA. [May 1. 



middle and lower median veins : hind wing with marginal and sub- 

 marginal spots as above, and five very small discal spots. 



Expanse 3^ inches. 



Hab. Cambodia {Mouhot). In coll. Messrs. Godraan and Salvia. 



Tronga, n. g. 



Evploea (Crastia, sect. C, part.). Marshall and de Niceville, Butt, 

 of India, p. 76 (1882). 



Male. Fore wing broadly elongate, somewhat quadrate in form, 

 the posterior margin being very broadly convex ; cell much broader 

 and with longer discocellulars than in Vadebra ; upper discocellular 

 with a short spur or discoidal veinlet emitted within the cell : hind 

 wing with the apex and exterior margin more convex. 



Type T. crameri. 



1. Tronga crameri. 



Euplcea crameri, Lucas, Eev. Zool. 1853, p. 318, c?. 



Evploea crameri, Moore, Catal. Lep. Mus. E.I. C. i. p. 129 

 (1857), 6. 



Crastia crameri, Butler, Journ. Linn. Soc, Zool.xiv. p. 297- 



Euplcea Johanna, Kirby, Syn. Catal. D. Lep. p. 17 (1871). 



Euplcea {Crastia) crameri, Marshall and de Niceville, Butt, of 

 India, p. 78, pi. 8. f. 15 (1882). 



Female paler than male, and of a more olivaceous brown tint : 

 fore wing with eight submarginal spots ; a costal spot above end of 

 the cell, one at lower end of the cell, and two discal beyond the cell : 

 hind wing with two or three upper submarginal spots and indistinct 

 discal and submarginal spots. 



Hah. Borneo {Lowe). Colls. Paris Museum, British Museum, 

 F. Moore, Salvin and Godmau. 



Having compared Lucas's type of T. crameri with the insect 

 which 1 also described under the same name, I find that they are 

 identical. The specimens in the East-India Company's Museum 

 had been so labelled by Dr. Boisduval. 



2. Tronga biseriata, n. sp. 



Allied to T. crameri. 



Male. Uniform dark violet-brown, without gloss : fore wing with 

 a marginal row of small very prominent white spots, which are ob.so- 

 lete at the apex, and a submarginal row of somewhat larger syiots, 

 which are obsolete at the lower end, the penultimate upper spot 

 being the largest and oval; a small spot also on the disk between 

 upper and middle median veins : hind wing with a marg'inal row of 

 very prominent small white spots. 



Expanse 3j^ inches. 



Hab. Trinkut, Nicobar Islands. In coll. British Museum. 



3. Tronga marsdeni, n. sp. 



Intermediate between T. bremeri and T. Cameri. Colour paler. 

 Fore wing more the shape of that in T. cr^raeri, being comparatively 



