Puhl. 22. VI. W14. CATACLYSME. By L. B. Prout. 265 



it is much darker and more unicoloruus, llie liindwing also darkened. This latter form, which is recorded 

 from N. Germany, Romnania, the Ural, Ussuri, etc., is perhaps in some localities tending to form a local race. — 

 ab. zonata Wahh/ren has the median band entirely brown-black, ground colour normal. Larva stout, rugose zotiata. 

 laterally, segmenlation distinct; ochreous brown; dorsum tinged with green and with a row of large V-shaped 

 dark markings on the abdominal segments, pointing forward. On Chenopodium and Alriplex, especially on the 

 flowers and seeds. Pupa very short and thick, densely sculptured with fine incised line.s and punctures; dark 

 red-brown; hibernating. Moth in ,Iune and July, distributed in Europe (except the South-west and the Arctic 

 Region), Siberia, N. China, etc. 



62. Genus: Cataclys^iue Hbn. 



Closely related to Cidaria subgen. Enphyia, but distinguished by Ihe remarkable neuration of the foie- 

 wing; the distal areole is wanting, the 5*'' subcostal long-stalked with the 1*' radial, remote from the other 

 subcostals. In the typical subgenus, which inhabits the Palearctic Region, the cf antenna is nearly simple, 

 as in Euphyia. Only a few species are known. 



A. Antenna in cf very shortly ciliated. 



C. riguata Hhn. (91) is marked somewhat like Cidaria hilineata but even more uniformly and is very riguata. 

 distinct in its shaiie and colour, etc. In the name-typical form the ground-colour is grey-brown, the white 

 lines very fine, not very conspicuous. — ab. millierata Gmpbg. is described and figured as cinei'eous, brown- milUerata. 

 lined (dark blue-grey-lined in the figure), the median area of the forewing slightly darkened, the siibterminal 

 line of both wings better expressed, the underside distinctly marked. I have never seen anything approaching 

 it. — festivata Stgr. represents riguata in the district which extends from Zerafshan to Hi and is larger, feslivaia. 

 brighter brown, with the white lines more dislinct. — Larva elongate, cylindrical, violaceous grey, weakly 

 shaded in places with rosy ; dorsal line fine, brown, interrupted at the incisions, subdorsal flesh-coloured, lateral 

 line white, ventral band brown; the middle segments bear dorsally dark angular markings, pointing caudad. 

 On Galium and Asperula. Pupa rather slender, shining red-brown, the wing-cases etc., rather more prominent 

 than usual. Those of the second brood hibernate. Flies in May and in a partial second generation from July 

 to September. The name-typical form inhabits South and southern Central Europe, Belgium, Asia Minor to 

 Transcaspia and again in the Tarbagatai-Altai region. 



C. dissimilata Rbr. (= uniformata Bell., dissimulata Stgr.) (9 i). Similar to riguata, perhaps on an dissimilata. 

 average rather smaller, generally more tinged with yellow or greenish-yellow, a little more variegated, the 

 median area and sometimes the basal appearing slightly darkened, at least at the boundaries; indications of 

 double pale lines proximally and distally to the median area; distal edge of median band more strongly dentate; 

 subterminal line often obsolescent or indicated only by white vein-dots; terminal line black, dotted with white 

 at the veins. — spissistrigaria TrtL, according to specimens lent by Herr PiJngeler, seems to be nothing more spissistri- 

 than a rather dark form of this species, greyish fuscous with the pale waved lines and whitish subterminal gciria. 

 dots rather well expressed. Aritzo, Sardinia. — Larva less slender than that of riguata, flesh-colour or some- 

 times greenish, with numerous fine dark longitudinal lines and white lateral stripe, the middle segments with 

 blackish dorsal triangles. On Galium. The pupa hibernates. There are two broods, flying in April— May 

 (or June) and August— September. S. France; Spain; Corsica. 



C. multistriga Oh. possibly belongs here but is quite uncertain as the figure is accompanied by no multislriga. 

 descriptive matter, even the sex not indicated. Rather larger than dissimilata, forewing perhaps more elongate, 

 ground-colour whiter, the markings therefore sharper, otherwise similai', median band with rather strong 

 indentations proximally, postmedian white band of hindwing nearer the margin, subterminal obsolescent, not 

 broken up into dots. Underside similar to that of scripturata, rather more sharply marked, terminal line broken 

 up into pairs of dots. Constantine, Algeria. Perhaps a Cidaria (e. g. of the subgenus Euphyia). 



B. Antenna in cf strongly dentate with fascicles of cilia. 



C. plurilinearia Leech (7 i) is one of the largest species of the genus, grey, in places yellowish-grey, piuriUne- 

 not brown, the markings, at least on the hindwing, stronger than in the species of section A, a discal dot aria. 

 present on the hindwing; distal margins more appreciably crenulate. Underside still more strongly marked, 



with pale postmedian band, sharply dark-edged proximally. Ni-tou, W. China. 



IV 34 



