312 Mr. L. B. Prout on neio 



traversing the lower surface of the baculum. The edge of 

 the cup on each side of this cleft forms a lobate thickening-. 



The measurements of the baculum examined, which was 

 extracted from a specimen of Mellivora ratel, are as follows : — 

 Total length in a straight line 70 mm.; length along the 

 inferior curve 77 mm. ; width at the base 11 mm., at the 

 narrowest point behind the upcurved end 4 mm. ; of the 

 expanded cup-like termination 12 mm., height of the latter 

 9 mm. 



It may be added that in Mellivora, as in other genera and 

 species of Mustelines with the tip of the baculum upcurled, 

 the urethral canal does not follow the curvature, but runs 

 straight forwards, following the line of the lower surface of 

 the baeulum. 



XXXVI. — Neiv Heterocera in the Joicey Collection. 

 By Louis B. Prout, F.E.S. 



Family Zygsenidse. 



Subfamily Chalcobiinm. 



1. Eterusia proprimarginata } sp. n. 



<t . — 48 mm. 



Head and body above black, beneath pale buff; collar 

 red, as in pulchella, Roll. Abdomen above with very fine, 

 in part interrupted, buff rings at the extremities of the 

 segments. 



Wings shaped as in pulchella. Fore wing brownish black, 

 the yellow markings consisting of a longitudinal streak be- 

 hind cell from base, as in pulchella, the transverse median 

 band more interrupted at M than in that species ; a large 

 spot at the discocellulars, and a row of submarginal spots 

 between SC 5 and M 1 , recalling the anterior part of the 

 series which is developed in elizabetha, Walk. Hind wing 

 predominantly yellow, blackened in proximal part of cell, 

 on veins M (as far as the origin of M 1 ), M 2 , and SM 1 , in 

 the abdominal region to the same extent as in elizabetha, 

 and irregularly at the distal margin, the border being rather 

 narrow (about 2 mm.) between apex and M : , then forming 

 a triangular proximal projection; a roundish black spot 

 between R 3 and M 1 , nearly touching the distal border. 



