230 



C ID ARIA. By L. B. Prout. 



pyrenaea- 

 ria. 



kollariaria. 



obscurata. 

 hilar iata. 

 insulata. 



Arctic Norway to N. W. Russia. — pyrenaearia Oh. has tlie median band of the forewing pale, on the hind- 

 wing a fuscous postmedian line in addition to the dark border. It is the principal, though not the exclusive 

 form in the Pyrenees. — The early stages are apparently unknown. 



C. kollariaria H.-Sch. (9 b). A rather large species with dull mossy green, brownish-mixed forewings, 

 marked with brown basal patch and moderately broad median band, cf antennal pectinations rather long. — ab. 

 obscurata F. Hoffmann has the forewing much darkened, being dark-brown mixed with black-brown. — ab. 

 hilariata Schawerda. Ground-colour paler, median band sharply contrasted. — ab. insulata Schawerda. Median 

 band intersected by black lines which divide it into several separate patches. — The life-history of kollariaria 

 is unknown. It is distributed in the Swiss and Austrian Alps and occurs in Bosnia. Its reputed occurrence 

 in E. Siberia requires confirmation. 



laetaria. C. laetaria Lah. {^= viridicinctaria Peyer.) (9b) has commonly been regarded as a local race of the 



preceding, but those authors who have given the closest study to it declare it to be a separate species. 

 Delaharpe differentiated it by its somewhat longer palpus, rather smaller size, less rounded wings, more 

 sinuous postmedian line, median band narrowing towards the costa, anterior half of subterrainal line clear 

 white, discal mark larger, broader. Some of these differences have been called in question or have proved 

 inconstant but laetaria, in its typical form and when in fresh condition, is a brighter blue-green insect, without 

 brown admixture and probably this, combined with the shape of the band, will give sufficient distinction. 

 lareniiaria. Ratzer compared over 40 of each species and supported Delaharpe. Local in the Swiss Alps. — larentiaria 

 Brd. is the French form, with paler green ground-colour and brown, not green-mixed median band. It is not 

 rare in the mountains about Uriage, on Mont Revard. above Aix-le-Bains, and in the mountains of Doubs. — 

 laetaria .is on the wing from June to September, at altitudes of from 476 m to 1800 m. According to 

 Oberthijr it seems that the form larentiaria flies chiefly in June. 



varonaria. 



pung 



C. varonaria Vorbr. and Miill.-Rutz. A recently erected species, said to form with the two following 

 a distinct group. Pectinations as in austriacaria, while in pilngeleri they project more from the antennal shaft. 

 Expanse of cf 29 mm, of ? 24 mm (German system of measurement), cf forewing strikingly triangular, hind- 

 wing decidedly narrower and more elongate than in the allies. Forewing grey-green, slightly yellowish, hind- 

 wing ash-grey, cf forewing with a broad, obscure median band which is sometimes lighter in its middle part 

 but always distally and which is also indicated on the hindwing. ? more strongly marked; median band 

 always divided with whitish, so that the forewing appears traversed by numerous black-grey wavy lines. 

 Fringes black-chequered. Under surface unmarked. Discovered by Miss de Rougemont on the Alpe Varone 

 between 2000 and 2400 m, sitting on rocks or drinking at puddles. June. 



C. piingeleri Stertz is nearly related to austriacaria (9 b) but with broader wings, longer, more projecting 

 anteimal pectinations, etc. The wings have the same smooth, glossy scaling as in austriacaria, but have a 

 greenish tone which is wanting in that species; the distal projection in the postmedian line of the forewmg is 

 somewhat more acute, the pale band on the hindwing whiter. According to Rebel the antennal distinction is 

 not constant. Zermatt in July at an elevation of about 2500 m, sitting on rocks, but hitherto always scarce. 



austriaca- C. austriacaria H.-Sch. (9 b) is easily recognizable by its elongate, glossy grey wings and whitish head 



ria. and face. The markings are generally weak in the cf, stronger in the ?. The cf antennal pectinations are of 

 moderate length, usually lying rather flat against the shaft. Austrian Alps. Staudinger records a variety from 

 the Pyrenees but I have no knowledge of it. 



tempestaria. C. tempestaria H.-Sch. (9 b). Much larger than austriacaria, more whitish grey, sometimes with a 



yellowish admixture, the discal dots obsolete, the under surface sharply marked, cf antenna pectinate as far 

 as the apex. Southern Tyrol and Carniola, at elevations of 1700—2500 m sitting on rocks. Very scarce and 

 local, end of June — July. 



aqueaia. C. aqueata Hbn. (= lotaria Bsd.) (9b) is another strongly glossy species, but smaller than the prece- 



ding group, about the size of salicata. Head white, as in austriacaria, from which it differs in size, rather 

 less elongate wings, more whitish grey ground-colour, without a tinge of brown, etc. The typical form, when 

 hercegovi- in good condition, has a very strong tinge of green in the forewing. — hercegovinensis Rhl, from Bosnia and 

 nensis. Herzegovina, is a whiter form without the least admixture of green. — Larva moderately elongate, tapermg 

 anteriorly, rugose; head small, round, brown; on the last segments the posterior pair of dorsal tubercles 

 enlarged; colour dirty greenish yellow or clay-colour, with very indistinct and interrupted dark dorsal and 

 subdorsal lines and broad paler lateral stripe. It hibernates and is full grown in April or May. The moth 

 flies in June and July and is not rare in pie nionntains of Central and Southern Central Europe. 



