in the Basin of the Amazons.' 237 



indistinct lines ; the two stigmata and the central spot on the hind 

 wing large and dark. Expanse of wings, 16 mm. 



One ? from Papiinha, E. Jurua, Nov. 5tb, 1874. 



The species differs from P. snhrufa in having the 

 margin of all the wings scalloped, while in P. subrufa 

 they are plain. The specimen is damaged about the 

 head, and the final joint of the palpi (or rather palpus, 

 as there is only one left), is denuded of scales and thin ; 

 so that possibly a better series of examples will justify 

 its separation from the genus. 



Paramacna, n. g. 

 Fore wing very broad, almost triangular ; costa curved at the 

 base, then straight to the apex, which is pointed ; hind margin 

 slightly bent inwards below the apex, then broadly convex, and 

 again bent in a little before the anal angle, which is well-marked ; 

 hmd wing rounded, with the hind margin slightly elbowed in the 

 middle ; wings with fine scaling, and with unusual markings. 

 Labial palpi with second joint obliquely ascending, as high as the 

 top of the head, clothed above and below with fine hairs, laterally 

 compressed ; third joint horizontally porrected, not moi'e than one- 

 third the length of the second, small, pointed, with closely appressed 

 scales ; forehead with a horny ridge between the antenna ; these 

 in $ simple, laminated, subserrated towards the apex ; the basal 

 joint long and swollen ; tongue present, but not large ; maxillary 

 palpi invisible ; on the under side the cell in the fore wing is 

 clothed with fine hairs ; abdomen robust, with ovipositor cxserted. 

 Neuration : Fore wing, first median branch at one-fifth before the 

 end of the median, which is curved upwards towards the end of 

 the cell ; second median branch a little before the end ; third and 

 lower radial from the end, which is very acute ; disco-cellular 

 strongly incurved basewards ; upper radial from its upper end ; 

 third, fourth, and fifth subcostal branches on one stem, the fifth 

 leaving soon after its rise and curving into the hind margin, third 

 out of fourth shortly to the costa, fourth running into costa just 

 before the apex. Hind wing with the costal and subcostal approxi- 

 mating in the centre, and united there by a short oblique trans- 

 verse vein : costal with two branches ; subcostal single ; median 

 branches and disco-cellular as in fore wing. 



This genus agrees in many points with Walker's genus 

 Macna, the only species of which, however, comes from 

 Singapore. In neuration it accords entirely with the 

 genus Tamijra, H.-S., to which, among others, Lametia 



