274 MR. F. MOORE ON LIMNAINA AND ETJPLtEINA. [May 1, 



4. Betanga anthracina. 



Euplcea anthracina, Butler, Proc. Zool. Soc. 1866, p. 280, f. 1, 

 fj ; Journ. Linn. Soc, Zool. xiv. p. 301. 

 Euploea walkenaieri, Boisd. MS. 



Hah. Amboina, Gilolo. 



5. Betanga duponchelii. 



Eriplmi duj)onchelii, Boisduval, Voy. Astrol. Lep. p. 97 (1832) ; 

 Butler, Journ. Linn. Soc, Zool. xiv. p. 301. 

 Euplcea geyeri, Boisd. MS. 

 ffah. Bouru, Ceram. 



6. Betanga dodingensis, n. sp. 



Euplcea moorei, Boisduval, MS. 



Closely allied to B. chiponclidii. Upperside of a more uniform 

 colour : fore wing with a somewhat bronder sericeous streak ; no 

 marginal pale spots : hind wing unspotted. Underside also of a 

 more uniform colour : fore wing with four discal bluish-white spots, 

 and two very minute costal dots : hind wing with a small bluish-white 

 spot within the cell ; a discal series of six spots, and an upper sub- 

 marginal series of three or four spots. 



Expanse 3| inches. 



Hah. Dodinga. In colls. M. Oberthiir and F. Moore. 



7. Betanga vitella. 



Eiiploea vitella, Montrouze, Ann. Soc. Phys. Nat. Lyon, 1856, 

 p. 403. 



Hah. "Woodlark Island. 



8. Betanga meg^ra. 



Euplcea megaira, Butler, Proc. Zool. Soc. 1866, p. 276 ; Journ. 

 Linn. Soc, Zool. xiv. p. 300. 

 Hah. Aru. 



Penoa, n. g. 



Euplcea (sect. C & D), Marshall and de Niceville, Butt, of India, 

 p. 80 (1882). 



Male. Differs from typical Crastia (core) in having a less trian- 

 giilar form of fore wing, which is also broader and is glossed with 

 purple-violet or deep blue, the exterior and posterior margins convex, 

 the edge of the latter more even, and in possessing a very long and 

 broad sericeous brand : hind wing shorter, the costal margin 

 straighter. 



Type P. alcatJioe, 



1. Penoa alcathoe. 



Danais alcathoe, Godart, Enc Meth. ix. p. 178 (1819). 



Euplcea alcathoe, Butler, Journ. Linn. Soc, Zool. xiv p. 301 ; 



