LYGRIS. By L. B. Prout. 211 



L. plurilineata Walk. (\ 1 i). Much .smaller than the other species of Lijf/nf!. Pattern of forewing not pha-ilineata. 

 entirely dissimilar to that of I udovkaria, but with the 15 lines more equidistant, not grouped in fours, the 

 ground-colour very pale yellow, not white. Forewing beneath with the lines broadened, the distal pairs united 

 into bars; hindwing beneath paler than above, with large discal spot, a bar between the cell and the fold, 

 two thick ctn'ved lines behind the cell-spot, then a row of large spots, finally a dark apical spot, much smaller 

 than above. Palpus longer than in ludovicaria, stout and long-scaled. N. \l. China: Ningpo to the Nan- 

 kow Mountains. 



B. Palpuswith 3"* joint exposed; wings less broad, distal margin of forewing often 

 flexuous, of hindwing not ventricose; cf hair-tuft normal (Li/fjris Led.). 



L. fabiolaria Ob. has been already fignred in vol. 2, pi. 231', although Dr. Sti^anu expressed a suspicion fabiolaria. 

 (p. 196) that it would prove to be Geometiid. It is a beautiful mimic of the genus Abri(,r<is, but the structure 

 is typically that of Lygris except that the 2"'* joint of the palpus is rather more smoothly scaled; 3'''' joint 

 rather shoi't. The midcostal blotch is rather browner than in our figure. I have before me Lkech's series 

 from several localities in Central and Western China. 



L. prunata L. (=^ ribesiaria Bsd.) (8e). This handsome species also differs somewhat in facies from prunata. 

 the more typical species, the rich, variegated brown colouring and the triangular dark markings before the 

 subterminal line rather recalling Cidaria silaceata beneath paler, but with most oi the markings present in the 

 distal half It occasionally varies, but scarcely sufficiently to justify the many names which have been imposed 

 on its less typical forms. — ab. digna Th.-Mieg (^ ochraceata Lamhill., flavicata Sp. Schneid.), first described digna. 

 but not named by Guenee, has the ground-colour of the forewing pale ochre-yellow, the markings, with the 

 exception of the dark central band, weakly expressed, the hindwing also paler than in the type, with black 

 postmedian line. — ab. schwederi Teich differs little from the type on the upper surface, though the distal schwederi. 

 margins are darker, especially on the hindwing. Beneath both wings are blackish grey, only with a yellowish- 

 white line beyond the postmedian. 2 examples near Riga. — ab. constricta Strand (=: interrupta Hirschke) constricta. 

 has the median band narrowed and broken, the posterior one-fourth being cut off as a separate oval spot. — 

 aniiexa Schima, from Herzegovina, has the band distally more strongly dentate, its proximal and distal bordering annexa. 

 more mixed with golden yellow; the dark patch on the termen is altogether wanting. — arctica Strand, arctka. 

 According to its author, specimens from Arctic Norway are usually smaller with weaker markings but darker 

 marginal area. Schneider, however, does not think this constant. The adult larva is variable in colour and 

 in the strength of the markings; green or variegated with greys and red-browns; a V-shaped dorsal pattern; 

 a black collar on the swollen mesothorax, with whitish tubercular dots. On species of Ribes. Central and 

 Northern Europe and many parts of Asiatic Russia. 



L. testata L. {^= colorata F). The name-typical form, which is prevalent in the north of Europe and iestala. 

 in Canada, has the yellowish ground-colour strongly suffused almost throughout with testaceous, so that that 

 becomes altogether the prevailing colour. Underside of forewing almost unmarked as far as the postmedian 

 line; of hindwing with 2 well expressed dark lines (only indicated above). — achatinata Hbn. (8 e, as testata) achntinata. 

 is much more brightly coloured, the basal and median bands and the terminal patch on the forewing bright 

 orange-yellow. Also generally a little larger than the type. Only occurs in more southern localities. — insiiUcola. 

 insulicola Stgr. is considerably darker than the type, of a reddish brown colour; in general also somewhat 

 narrower-winged. Staudinger records it from the Shetlands and Hebrides and I have examples from the Isle 

 of Arran. — achatinellaria Ob. (Be), from Eastern Siberia, has the proximal edge of the median band of the achatinel- 

 forewing deeply angled and a more distinct dark cell-spot present above, besides other differences, and is ^°'''**- 

 likely to prove to be a separate Species, although according to Staudinger transitional forms occur in Mongolia. — 

 Larva a rather pale yellowish brown, often with some tinge of green; weakly marked, the most conspicuous 

 marking being a dark dorsal line; rather more slender and regularly cylindrical than that oi prunata, anal flap 

 somewhat pointed. On sallow, birch, etc., feeding chiefiy at night. The moth appears rather later than most 

 of its congeners, chiefly in August and September. 



L. populata L. (8 f). Very variable in colour, but pretty constant in the shape of the median band, popidata. 

 with its characteristic bilobed distal projection. Beneath this band is ill-defined proximally and the hindwing 

 is rather less pale and more strongly marked than above, with a distinct discal dot. We figure a rather darkly 

 marked example. — ab. dotata L. differs in being more uniformly coloured, somewhat recalling mellinatu; the dotata. 

 median area of the forewing, though sharply marked at its boundaries, encloses little or.no dark filling. — 

 ab. lutea Strand (= ? pallidata Lambill.), said to be chiefly prevalent in Arctic Norway, is a more extreme lutea. 

 development than dotata. Forewing almost uniform clear yellow, only the postmedian line distinctly indicated 

 and even this sometimes nearly obsolete; hindwing whitish, almost or quite unmarked. — ab. circumscripta drcum- 

 Strand has the basal and median dark areas of the forewing well developed and joined together both on costa scrtpta. 



