60 ACIDALIA. By L. B. Prout. 



sunk by Fletcher to minorata, but with shorter hindtarsus. G ue nee describes rer?iototo as expanding 18 mm, 

 1 mm less than ochroleucata, rather more greyish, the postmedian line little sinuate, wavy, remote from the 

 inner line and even from the median, which on the forewing passes much above (i. e., proximally to) the discal 

 spot without curving. ^J hindtarsus "nearly as long" as tibia, but this is said also of ochroleucata. 



personata. A.persotiatasp.nov. (= impersonata Pri/er nee Walk.) (7a). Bone-colour, sparsely dusted with blackish 



atoms. Forewing with 3, hindwing with 2 fine browner (sometimes greyish) lines and sometimes some weak 

 distal dusting defining on both sides a vague, wavy subterminal line, which is otherwise invisible; discal 

 and marginal dots sharp, black. Forewing with first line oblique outwards from costal margin, strongly bent 

 in cell, thence parallel with distal margin, rarely distinct; median shade somewhat thicker, distal to cell- 

 dot, undulate or subdentate, incurved in submedian area, somewhat weak; postmedian fine, distinct, denticu- 

 late, almost parallel with distal margin or very slightly incurved between the radials. Hindwing with the 

 median shade proximal to the cell-dot, mcurved in cell and m submedian area, post-median more sinuous 

 than on forewing, showing the two inward curves. Under surface of hindwuig and of posterior part of forewing 

 white, almost unmarked, the hindwmg usually showdng a very faint postmedian Ime; forewing anteriorly, 

 on the other hand, rather darker than above, postmedian line distinct; both wings with sharp cell-dot and 

 marginal dots. ^ antennal ciliation considerably longer than the width of the shaft, apparently nearly twice 

 as long; hindtibia not greatly thickened, fringed with hair-scales above, tarsus almost as long as tibia. Des- 

 cribed from 9 ^^, 8 being in the British Museum. Type from Satsuma, May 1886 (Leech collection); 2 from 

 Gensan, July and August 1887, 1 Nikko 1887, 1 Nagasaki, May 1886 (all Leech collection); Japan, probably 

 Yokohama (H. Pryer; misidentified as impersonata. Walk.); Yokohama (2 worn examples from the Jonas 

 collection); Kobe, Japan, May 1910 (in my collection, presented by Dr. M. Culpin). The last-named example 

 is rather strongly grey-dusted, rather weakly marked, especially as regards the discal dot of the forewing, 

 but in general personata varies little except m size (18 — 21 mm, English measuring). Extremely like certain 

 forms of ochroleucata H.-Sch. and actuaria Walk., scarcely distinguishable except m the longer hind-tarsus 

 and perhaps slightly longer antennal ciliation. May be regarded as the Eastern representative of the group. 

 In comparison, ochroleucata shows a slightly more fleshy tmge, slightly more incurved postmedian line, stronger 

 subterminal shades and better marked underside. The resemblance to pale impersonata is more superficial. 

 Some worn examples from Ichang are probably small personata. 



adelpharia. A. adelpharia Pilng. (3 k, as adelphata) differs from ochroleitcata in its rather brighter colour, sparser 



and minuter dustbag and darker ochreous (not fuscous or grej') lines. Median line curved costally, closely follow- 

 ing or even touching the discal dot; postmedian excurved near costal margin, very gently incurved between 

 radials and then still more sinuous to the posterior margin, not at all denticulate; the pale postmedian is 

 discernible between two faint dark shades. Discal spots black, but minute; marginal dots very minute, 

 in part obsolescent. Under surface altogether without markings except for very minute and not very strong 

 discal spot on each wmg. The underside affords a very ready distinction from ordinary ochroleucata, but Bo- 

 hat sen records pale aberrations of that species with unmarked underside. Finally, the hindtarsus of adelpharia 

 is relatively shorter, being less than one-half the length of the tibia. The (^ antennal ciliation is short, scarcely 

 half as long as in turbidaria. Jericho and Lower Egypt. The type specimens, from Jericho, were bred on 20 June 

 and 2 July 1892 from ova laid by a $ which was captured on 23 March. The larva when full grown measured 

 about 20 mm, slender in proportion, nearly cylindrical posteriorly very little thicker, the head slightly notched. 

 The dorsal area is pale yellowish brown, somewhat mixed with green, the ventral light grey. Similar to the 

 larva of A. ruhiginata, but somewhat more compact, the spiracles less prominent. The pupa is light brown 

 with darker stigmata, otherwise markingless. The further locality, Lower Egypt, was communicated by 

 Herr Pungeler (in litt.), who has recently received it from thence for determmation. 



sybillaria. A. sybillaria Sivinh. (7 b) is of about the size and colour of ochroleucata, very finely but moderately strongly 



sprmkled with blackish. Lines rather weak, the median on forewmg somewhat thickened, more strongly in- 

 curved behind the cell and somewhat dentate distally, the postmedian further from the distal margin, more si- 

 nuous, angled on the first radial, then markedly incurved; distal area appreciably darkened, containing a di- 

 stiiact rather broad pale subterminal line, formed much as in Ptychopoda hiselata, to weakly marked forms of 

 which the species bears some superficial resemblance, except in its rather smaller size. Each wing with a 

 black discal dot and black interneural dots or very short streaks at the distal margin. Beneath the hindwing 

 is whiter; both wings bear the cell-spots, postmedian Ime and the markmgs distally thereto. Ichang, taken 

 in August by Mr. Pratt. The leg and antemial structure are nearly as m ochroleucata. 



ignoUHs. A. ignobilis Warr. (4 m, fig. 5; 5 b) is considerably larger, exceeding in average size the well-known 



immutata. Colour again similar to that of the preceding group, rather clear, the black dusting being as sparse 



