256 



XANTHORHOE. By L. B. Prout. 



Tasmania and perhaps West Aiistralia 

 Guinea. 



further known froin Lord Howe and Norfolk Islands and eastern New 



suhidaria. X. subidaria Guen. (= regulata Walk., ? = ? multifilaria Walk., gelidata Walk., algidata Walk., M. S., 



Tvrn.) (25 i). Antennal pectinations in (^ long. Common and extremely variable, so that. eveii after the eli- 

 niination of sodaliala, it has still an extensive synonymy. Palpus fully twice diameter of eye; pectinations long. 



relictata. Guenee's type form has the median band of the forewing dark or blackish, solid. — ,^-ah. relictata Walk. 

 (= acutata Walk.) has a pale (in the subaberration acutata white) patch snrrounding the cell-dot of the fore- 



cymaria. wing. Both the types. together with that oi regulata, eame from Sydney. — ab. (?) cymaria Guen. It is not 

 quite clear on what grounds CJuenee separated this from subidaria. as he makes it a species and does not even 

 compare the two. A nearly typical subidaria $ in his collection is labelled ''cymaria'!", but I gather that its 

 median band shonld be "a little paler in the middle" and that therefore it may have to supplant ab. relictata 

 or even ab. irrepleta; it may, however, represent the usual $ form of subidaria' (which A\as founded on 6 oS), 

 permissata. generally distingnishable by its broader median band and darker hindwing. — $-ab. permissata Walk, has the 

 brown parts suffused with diill red, the onter lobe of the median band rather acixte, the white band beyond 



irrepleta. it strong. Type from Sydney. — ab. irrepleta noi\ is a freqnently recurring aberration with the median 

 band ill developed, exjDressed chiefly by some dark shading on the antemedian and postmedian groups of lines 

 and even this shading, in the cj, alniost confined to the anterior half, blackest about the median and 3rd radial 

 veins. This rather strongly recalls the commonest form of rosearia except in its less curved antemedian and 

 less rosy-tinged underside. — subidaria is common and widely distributed in Australia, except the more trojDical 

 parts. 



CJK«. X. epia Turn. (25 i). o and $, 29 to 34 mm. Paljnis 3. Pectinations in cJ 6. Forewing with apex pointed, 



termen bowed, oblique; grey, with numerous fine oblique fuscous lines, more or less reddish tinged; a small 

 basal patch and a median band darker, the latter mbderately broad anteriorly, from middle to hindmargin 

 narrowing to % the breadth, proximal edge slightly curved, distal very obtusely exangulated in middle. Hind- 

 wing rounded, grey, posteriorly with commencements of alternately darker and paler lines. Mt. Kosciusko 

 5000 feet. Nearest centroneura (25 i) but much less pale, with less contrasted band and without the blackish 

 vein-dots. 



centroneura. 



X. centroneura Meyr. 



Lö 1 . 



Palpus a little over twice diameter of eye. Pectinations at least as long 



as in epia. For the differentiation see above. Median band in general little darkened except on its edges, which 

 show some red or dark markings ; characteristic are the blackish vein-dots of the forewing, particularly outside 

 the median band. Described from Mount Wellington, Tasmania; perhaps confined to that Island. 



hiiuminea . 



though 



aphanta. 



X. bituminea Timi. Described from 2 $? from Rosebery, Queensland, of which Turner says 

 the (^ is unknown, I think this species is allied to centroneura and epia" . 30 mm. Forewing with costa nearly 

 straight to near apex, ajiex acute, termen sinuate, oblique; fuscous, obsciurely marked with slender wavy darker 

 lines; median band hardly darker, defined distally by a very slight whitish line from ^/g costa to ^/j hindmargin. 

 Hindwing with termen crenulate, only slightly rounded; grey, with the beginnings of obscure slender lines 

 from abdominal margin. Underside fuscous, tlie hindwing better marked, with blackish cell-dot and 3 dark 

 lines distally thei'eto. The second sjjecimen is a well-marked aberration, the forewing with brown ante- and 

 postmedian bands, the latter bifurcating near costa. its outer brauch running to apex. 



X. aphanta Tum. Position quite uncertain. The unique type, a $ from Lord Howe Island, was first 

 recorded as "'Cidarial" {Euphyia), then described as ""Xanthorhoet". Expanse 24 mm. "An inconspicuous 

 species of ordinarv facies." Palpus 2 i/o- Fore\\ing apex round-iiointed, termen slightly bowed, moderately 

 oblique; ochreous-whitish, the markings grey, mixed with brownish; basal 2'atch moderate, dentate-edged ; 

 median band broad, proximal edge curved, distal with a Single, prominent, rather obtuse tooth; cell-mark 

 linear, set in a jjaler s^iace; 3 rippled lines between postmedian and the interrujited, dentate subterminal. Hind- 

 wing whitish, with grey suÖ'usion. Both wings with terminal dots. 



xerodcs. X. xerodes Meyr. (25 k J, $). Palpus scarcely over twice diameter of eye. Pectinations 21/0 or scarcely 



(Meyrick, who gives 3 — 3^, must have measured from a narrower diameter of the shaft), continuing almost 

 to the apex. Forewing variable; veins sometimes partially marked with feiTUginoiis ; numerous irregulär dark 

 lines on a whitish or ochreous-mixed ground-colour, the median band a little darkened; antemedian very oblique 

 inward at hindmargin; postraedian with a short, but moderately acute central projection; fringe rather dark, 

 marked with whitish. West Australia: Albany. 2 $9» fi'om Perth and di.strict, are much Mhiter. with strongly 

 contrasting median band, extremely like a well-known form oi Larentia severata Guen., but I accept Meyrick's 

 determination, as I notice that they have the angle of the postmedian in front of Ist median sharper than in 

 hrachyctena. most severata. — brachyctena Tum. (25 d) is probably a synonym, at most a very slight geographical modi- 



