PANTHERA.—ZERENE. 139 
This species is common in Central and South America, extending as far south as the 
Argentine Republic. It varies considerably in size and colour, and in the distinctness 
of the markings. To judge from our series of upwards of sixty specimens, there can 
be very little doubt that P. unciaria and P. colubraria, Guen., are nothing but slight 
varieties of P. pardalaria, Hiibn. P. leonaria, Guen., I consider to be a good species, 
differing constantly from P. pardalaria in having the spots darker, and the head, 
thorax, and abdomen deep black. | 
PERIGRAMMA. 
Perigramma, Guenée, Sp. gén. des Lép. x. p. 215 (1857); Walker, Cat. xxiv. p. 1182. 
This genus was founded by Guenée upon a Brazilian insect, P. nervaria, of which 
he only had the female before him. Of the two species now added to it, one is nearly 
allied to P. nervaria, and this has the antenne deeply pectinated in the male and simple 
in the female. 
1. Perigramma orates, sp.n. (Tab. LIV. fig. 9, ¢ .) 
Male. Primaries and secondaries pure white; the primaries with the costal and outer margins, and the 
secondaries with the outer margin from the apex to the anal angle, bordered with greyish-black ; the 
marginal line of both wings white, the fringe greyish-black ; the underside as above: head and front of 
the thorax yellow, the rest of the thorax and the abdomen white, the anal tuft yellowish, the antenne 
and legs blackish-brown.— Female. Very similar to the male. Expanse, 5 13, 2 1? inch. 
Hab. Panama, Chiriqui (Ridde, in mus. Staudinger), Bugaba, Volcan de Chiriqui 
3000 to 4000 feet (Champion). 
We figure a male specimen from Bugaba. ‘This species is allied to P. nervaria, 
Guen., from Para, from which it may be at once distinguished by the blackish-grey 
border to the costa of the primaries and by the dark outer border of the secondaries. 
2. Perigramma (?) cesata, sp. n. (Tab. LIV. fig. 10, 2.) 
Female. Primaries and secondaries pure white, the primaries with the costal margin and a rather wide band 
crossing about the middle to the anal angle, where it is curved inwards, greyish-black; the fringe white ; 
the underside as above: head and antenne black, the thorax, tegule, and abdomen white, the anus 
yellow, the legs brownish-white. Expanse 2 inches. . 
Hab. Panama, Chiriqui (Ribbe & Trétsch, in mus. Staudinger). 
Two specimens, both females. The band crossing the primaries is much wider in 
one example than in the other. We figure the one with the widest band. 
ZERENE. 
Zerene, Treitschke, Schmett. Europ. vi. 2, p. 217 (1828) ; Guenée, Sp. gén. des Lép. x. p. 221 (1857) ; 
Walker, Cat. xxiv. p. 1136. 
Orthostixis, Hiibner, Verz. bek. Schmett. p. 304 (pars). 
Three species were placed in this genus by Guenée. One is now added from Mexico. 
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