PuM. 17. IV. 1914. CALOCAI.PE. By L. J3. Prout. 201 



C. tristis nom. nov. (= sideritaria Leech nee Ob.) (12 b). Rather smaller than the preceding and much darker, trisHs. 

 recalling the darkest species of Triphosa; intermediate in colour between T. duhioscdu (llg) and mulfiliitearia. 

 Forewing rather narrower than in alternata (51), the markings rather similar, distal edge of median area and anterior 

 part of siibterminal line less dentate than in grisearia; the subterminal is fine, sometimes a little interrupter!, and 

 is of a bluish or greyish white, becoming purer wiiite behind the 2"'' median vein, where it develops a con- 

 spicuous triangular spot. Hindwing almost uniformly dark, with a fine bluish-white, scarcely dentate subter- 

 minal line. Underside rather uniformly dark, both wings with discal mark (that of forewing not quite so large 

 as in grisearia); and with a postmedian line, that of the forewing less bent than in grisearia, that of the hind- 

 wing placed rather nearer to the discal spot; forewing with whitish subterminal usually indicated, but chiefly 

 as dots on the veins and larger mark behind 2"'' radial. — ab. bicolor ab. nov. has the areas between the 

 basal patch and median band and between the latter and the subterminal line bright brown. One cf from 

 Ta-chien-lu. — W.-China: Omei-shan (type cf and others, July), Wa-shan (July) and Ta-chien-lu (May — July), 

 all from the Leech collection. 



C. undulata L. (8d) may always, except in one extreme and rare aberration, be known by the regular undulata. 

 undulate lines which, in almost equal strength, traverse nearly the whole forewing and much of the hindwing; 

 those of the median area are sometimes a little thicker, especially at the costal margin of the forewing; hind- 

 wing proxiraally to the discal dot without lines. Underside similarly but less regularly marked with larger 

 discal dots, more sharply expressed postmedian line etc. — In ab. subfasciata Renter the median area, at least suhfasciata. 

 of the forewing, is darkened into a band while the other lines are weaker than normal, in extreme cases even 

 obsolete. — Larva dorsally purple-brown with 4 fine yellowish lines or pale bluish grey with the lines white; 

 lateral stripe grey or sometimes blackish ; ventral area paler, variable in tone. On sallow, aspen and Vaccinium, 

 hiding between spun-together leaves. Full-grown in September — October. Pupa stout, shiny, the sculpturing , 

 and pitting faint, cremaster ending in a bifurcated spike bright red-brown, cremaster blackish. The moth 

 appears in the following June and inhabits Central and Northern Europe, a greet part of Asiatic Russia and 

 also North- America. 



C. marmoraria Leech (7 1) cannot possibly be confounded with any of the foregoing. The wings avemarmoraria. 

 more strongly glossy, the ground colour purer white, largely obscured by rich black-brown marbling, which 

 is for the most part sharply defined. Underside similar. Distributed in W. and Central China, June — -August. 

 The abdomen is orange with black spots, showing a transition to the last few species of the genus, which are 

 almost certainly mimetic of Abraxas. 



C. inanata Chr. ( = costipunctaria Leech) (7 e) is equally unmistakable. Smaller and more slenderly manata. 

 built, distal margin of hindwing less strongly crenulate. Forewing dirty yellowish white, the dark lines ex- 

 ceedingly faint and fine, except at costa, where they form dark fuscous blotches. Hindwing with a faint post- 

 median line, which is more conspicuous beneath. Amurland and widely distributed in W. China and Tibet. 

 Abdomen concolorous with forewing, but with dark dorsal spots. 



C. flavipes Menetr. (:= flavipedaria Mendtr) White with a macular black pattern recalling that of an flavipes. 

 Abraxas. Forewing at extreme base yellow, bordered by a black line or band; antemedian, median and post- 

 median costal spots, the two latter more elongate than the former, the median strongly oblique; one or two 

 spots in the disc; a subterminal series of three spots, the first costal, the second between the radials, the third 

 from P* median to hindmargin; distal margin with a series of partly confluent black spots, somewhat elongate 

 so as almost to meet the subterminal series. Hindwing with some black spots near base and in innei'-mar- 

 ginal half of the wing, a long subterminal one from the margin to the P' median corresponding to that on 

 the forewing; terminal series smaller and more isolated than on forewing. Underside the same. Abdomen 

 yellow with large black spots. Amurland. Menetries was deceived by the mimicry into describing it as an 

 Abraxas. — interruptaria Leech (llg), from W. China, has the spots larger, in particular the antemedian anAinterruptaria. 

 median costal spots of the forewing; the forewing has also a complete postmedian series of black wedge- 

 marks on the veins and the subterminal and terminal rows are only separated by a fine white line. Hind- 

 wing with the terminal spots considerably enlarged. 



C. latifasciaria Leech (llg) is related to the preceding but larger, broader-winged, the markings deeper toj/ascja^'/a. 

 black and still much more extended than in the form interruptaria. Japan: Oiwake. A strange anomaly of 

 neuration has led Warren to erect an untenable genus {Xenospora) for this species; the vein which divides 

 the areole is sometimes (2 out of 7 specimens examined) obsolete. 



IV 26 



