PORTHESIA. By Dr. E. Strand. 
335 
P. melanosoma Btlr. (47 c). <$: snow-white, antennal pinnae greyish-brown, abdomen black with melanoso- 
a snow-white anal brush, anterior femora above blackish, anterior tibiae above ochreous, the base of the costal 
margin of the forewing beneath blackish. Expanse of wings: 32 mm. Melbourne. — A specimen without the 
habitat stated from Cob. Seitz has on the forewing beneath not only the whole costal margin blackish, but 
also the marginal area, the latter, however, not so dark as the basal half of the black costal-marginal band; 
fringes purely white. Length of wings: 16 y 2 mm. This form may be called: f. melainfera form. nov. (45 c). melainfera. 
P. mixta Btlr. (45 c). $: allied with P. melanosoma Btlr., but the anal brush is orange and the costal mixta. 
margin of the forewing beneath is not black. Tasmania. 
P. aroa B.-Bak. and $ purely white, abdomen except the first segment blackish, wings not hyaline aroa. 
at all. Expanse of wings: $ 33, $ 36 mm. Aroa River (Brit. New Guinea). 
P. alba B.-Bak. (44 b). $ and $ have white wings, in the $ at the proximal margin of the fore- alba. 
wing faintly ochreous. Abdomen dark grey with a yellow anal brush. Head and thorax hued with a flesh- 
colour. Expanse of wings: 32 mm. British New Guinea. 
P. meeki B.-Bak. head and thorax white, abdomen beneath white, otherwise yellow. Wings meeki. 
purely white, but the hindwing in the abdominal fold yellowish. — $ with a straw-colourecl hue in both wings. 
21 to 26, $ 32 mm. Aroa River (Brit. New Guinea), in March and April. 
P. ekeikei B.-Bak. (4a a). whitish, abdomen brown with a whitish anal brush. Forewing white with ekeikei. 
a brown spot in the middle of the posterior margin. Hindwing purely white. Expanse of wings: 24 mm. 
British New Guinea, March-April. 
P. biagi B.-Bak. (45 a). $: head and thorax white, metathorax hued orange, abdomen orange. Fore- biagi. 
wing white, very faintly hued orange, with traces of a median and a postmedian line. Hindwing white, in the 
dorsal area orange. Expanse of wings: 42 mm. British New Guinea. 
P. pallens B.-Bak. (45 a). $: body pale whitish-ochreous, both wings light straw-coloured. Forewing ■pattens. 
with a pale median and postmedian line, the spaces between the veins of a deeper straw-colour. Expanse of 
wings: 35 mm. Aroa River, British New Guinea. 
P. owgarra B.-Bak. (45 b). <$: body light straw-coloured, antennae black like the forelegs, whereas owgarra. 
the middle and posterior legs are light straw-coloured with black tarsi. Forewing lustrous white, at the base 
pale straw-coloured. Hindwing purely white. Expanse of wings: 32 mm. Owgarra in British New Guinea. 
— [Described as Caviria, but according to the author’s letter a Porthesia .] 
P. acatharta Trnr. 25, $ 35 mm. Head light ochreous, in the $ ochreous-whitish. Palpi ochreous- acatharia. 
whitish. Antennae whitish-ochreous, the combs in both sexes strongly developed, the longest in the Thorax 
and abdomen light ochreous, the anal brush darker ochreous. Legs ochreous-white. Forewing oblong triangular 
with a strongly curved costal margin, a rounded apex and a curved and very oblique distal margin: whitish- 
ochreous speckled with dark ochreous; lighter towards the costal margin; an extinct, undulate, whitish line 
from % of the costal margin to 3 / 4 of the anal margin, the most distinct in the $; fringes whitish. Hindwing 
with a very round margin, whitish, and with similar fringes. Kuranda in North Queensland; August. 
P. paradoxa Btlr. $: wings semi-transparent snow-white, with a faint silky lustre, at the fringes paradoxa. 
two very faint greyish lines; body white, scantily scaled; abdomen with a golden ochreous anal brush. Under 
surface as above. Expanse of wings: 32 mm. Rockhampton. 
P. aliena Btlr. (45 c). Forewing snow-white, the costal margin towards the base golden brown. Hind- aliena. 
wing white, the veins broadly dusted yellowish brown. Thorax white. Antennal pinnae light brown. Abdomen 
yellowish with black markings. Anal brush ochreous. Wings beneath whitish, at the margins slightly yellowish; 
forewing at the costal margin towards the base dark brown. Chest white, ventrum ochreous. Expanse of wings: 
30 mm. Peak Downs (Australia). 
P. panabra Trnr. (45 c). $ and $ white, anal brush ochreous, costal margin of forewing near the base panabra. 
ochreous, along the dorsal margin single, oblong, ochreous scales, whereby the species differs from P. paradoxa 
Btlr. and similar ones. — From P. euthysana it deviates by the white abdomen and less intense ochreous 
colouring. $ 24 to 26, $ 40 mm. Brisbane, Queensland, in March and April. Sidney. 
