Fereday. — On a new Species of Butterfly. 193 



half the length of the fore wing ; forehead tufted ; thorax probably crested, 

 but denuded in the specimen under description ; abdomen not extending 

 beyond the hindwings, crested and villose towards the base, upper side 

 luteous shading into ferruginous grey at the base ; legs rather long, anterior 

 tibia? very densely clothed beneath with long flexible hairs, the intermediate 

 tibiae with one, and the posterior with two pairs of long spurs. 



Forewings. — Upper side appear to be pale ferruginous-grey, clouded 

 with ferruginous brown and purpliyh-grey markings, but are too dilapi- 

 dated and denuded of scales for certain description. Under side, basal two- 

 thirds luteous with a black band across the middle and the appearance of a 

 broad dark marginal band. 



Hindwings. — Upper side luteous, brownish at the base, with a very broad 

 curved and abbreviated discal black band or patch, concave outwardly, and 

 a broad black outer border abbreviated towards the anal angle, and ending 

 opposite the hind end of the discal band. Under side similar to the upper 

 side, but rather paler. 



Length of body, 14" jexpanse of wings, 42". 



Art. XVIII. — Description of a Species of Butterfly new to New Zealand and 



probably to Science. By E. W. Fereday, M.E.S.L. 



[Read before the Philosophical Institute of Canterbury, 80th November, 1882.] 



Family NYMPHALID^E, Westwood. 



G-enus (?) — helmsi, n. sp. 



Male. — Head small ; eyes naked, large and prominent ; antennas scarcely 



more than a third of the length of the costa of the forewing ; shaft slender, 



club small, flattened, rather elongate, and slightly curved, but not hooked ; 



tip of the club fulvous ; palpi long obliquely ascending, a little wider apart 



at the tip than at the base, thickly clothed with long bristly hairs, terminal 



joint small and pointed, the hairs on the upper and lower edges and tip 



black, on the sides (both inwardly and outwardly) white ; forelegs rudi- 



mental, rather slender, scantily clothed with long slender hairs ; hindlegs 



with a pair of small spurs at extremity of the tibiae ; tarsi with two simple 



claws. 



Primaries broad ; costa convex from the middle to the tip ; hindmargin 

 nearly straight, slightly tending to concave ; the costal and median nervures 

 dilated at the base. Upper side of primaries dark-brown, a transverse 

 fulvous band, extending in a slight curve from the subcostal to near the 

 submedian nervure and thence bending towards and terminating about two 

 18 



