130 
CIDARIA. By L. B. Prout. 
ustipennis. 
aptata. 
polonica. 
sienotaenia- 
ta. 
griseata, 
suplata. 
hesperina. 
decomposi- 
tata. 
pontissala¬ 
ria. 
nigrofascia- 
ta. 
jurahelve- 
tica. 
juracolaria. 
desolivata. 
fitzi. 
cinerea. 
argillacea. 
C. ustipennis limps. (Vol. 4, pi. 11 f) remains very scarce in collections, but the Tring Museum has a 
$ from Simla. The S' pectinations are scarcely longer than in jameza and it is not absolutely impossible that 
viperata may prove to be a synonym. Angulations of the lines weaker than in jameza, distal area more weakly 
marked, etc. 
C. aptata Hbn. (Vol. 4, pi. 9 a). In most localities very variable (but see subsp. juracolaria). Those 
entomologists who have had the advantage of collecting it in numbers in the field, and have made a careful 
study of it, find interesting geographical variation. The fading of the delicate green tone in preserved specimens 
makes some of the distinctions less apparent subsequently and I can do little but summarize the forms which 
have hitherto been named. — ab. polonica Pruffer. Median band of forewing almost normal in width anteriorly, 
much narrower (% width) from the 2nd median hindward. Polish Tatra. — ab. stenotaeniata Nitsche. Median 
band of forewing only % of the normal width, that of the underside of the hindwing wanting. One specimen 
taken in the Grosse Fleiss valley, Carinthia. — ab. griseata Djakonov. Ground-colour on both sides of the 
band densely irrorated with grey, so that the forewing appears much darker than the normal. Lake Tiberkul, 
2 d' ( J. — ab. suplata Frr., founded on a specimen from Laibach (Carniola), was at first believed by Wehrli 
(as by earlier authors) to be identical with pontissalaria, described below; but further study has convinced 
hin that it is merely a strongly dark-banded aberration with the green tinge lost by fading. The median band 
is not, as I wrote (Vol. 4, p. 229), “unicolorous” fuscous, but contains, like typical aptata, a paler central stripe. 
hesperina Wehrli (12 e), from Valais and (on an average slightly smaller, but treated as synonymous) from 
the Maritime Alps, is a somewhat more pointed-winged form, with the green median band less sharply differ¬ 
entiated that in Hubner’s type. Culot (fig. 509) correctly figures this from Zermatt as an “alpine form”, without 
giving it a separate name; the preponderance of specimens collected in the localities named, at 1400—1800 m. 
belong to it. The Albanian form is said to be closely similar. — decompositata Dannehl, evidently akin to 
hesperina , is another high altitude form, constant at sufficient elevations in the Gran Sasso (type) and on Monte 
Velino. Small and strikingly narrow-winged, dirty white, the markings light-grey with scarcely a touch of 
green, the median band somewhat dissolved into lines, proximally diffuse (not sharply defined), the distal 
markings formed of fine faint lines. — pontissalaria Brd. (= suplata Wehrli olim, nec Frr.) is a really brown- 
banded form (contrast ab. suplata), even perfectly fresh specimens showing no trace of green or greenish in 
the median area; underside considerably darker than in typical aptata, in fresh specimens always with a brown 
tone which is wanting in even the darkest aptata. Perhaps (as both Bruand and Wehrli at first believed) a 
separate species, or at least a “species in the making”, but no structural difference has yet been found. Constant 
in the French and Swiss Jura, though three colour-forms can be differentiated. Wehrli notes an extremely 
interesting and significant distinction in the resting-habit; whereas aptata sits on rocks or stones, he has taken 
all his pontalissaria on Abies, either among the branches or on the trunks, so that its coloration is probably 
adaptive. Bruand's type, from Mt. Larmont, near Pontarlier, had the band of an “intense brown", but the 
figure shows a reddish tinge and Culot has applied the name to the most red-brown banded aberration. - 
ab. nigrofasciata Wehrli (= nigrifasciata Wehrli) has the band uniformly blackish. — ab. jurahelvetica Wehrli 
(12 e) has the band of a “fresh light-brown”. Overlooking the priority, Wehrli proposed this name for the 
whole race. — juracolaria Osthelder (12 e), from the Bavarian Jura, has a closely similar dark underside to 
pontissalaria, but differs essentially in that the upperside is very green, with the black element much reduced. 
Wehrli suggests that the two may have had a common origin in spite of their different protective guise. Unlike 
the other forms, juracolaria is very constant. It is very local at the foot of the Michelsberg, near Kelheim, its 
period of flight almost confined to the second half of June. 
C. olivata Schiff. (Vol. 4, pi. 9 a) ab. desolivata Schawerda is described from Herzegovina as blackish, 
without green scaling, recalling aptata ab. suplata. Culot has redescribed and figured it as ab. nigricata. 
C. fitzi Schawerda, originally erected as a very light race of olivata “superficially recalling aqueata”, 
was discovered in Herzegovina. Subsequently it was taken at Zengg and treated as a separate species, as 
it was found that typical olivata occured with it in Herzegovina. Then it was discovered in some numbers at 
Gravosa by Schwingenschuss and Wagner in a form which lacks even the faint greenish tinge of name-typical 
fitzi; but it seems to me impossible, notwithstanding some similarity in the markings, to confuse any known 
form of it with olivata. The appreciably broader wings, as well as the entirely different coloration, with less 
differentiated median band, create quite a different impression. cinerea Schwingenschuss (12 e) is this pre¬ 
vailing grey, darker-sprinkled Gravosa form and is said to look confusingly like salicata probaria. A very few 
name-typical fitzi have occurred among it as a rare aberration. — ab. argillacea Schwingenschuss, a very rare 
aberration, is the most striking form yet known, the median band assuming a definite hazelnut colour. Gravosa. 
- About a dozen eggs were obtained by Schwingenschuss from a captured $ and the larvae, which hatched 
at the beginning of November, placed on a plant of Galium mollago in a large glass. A few were successfully 
hibernated, attained their full growth about May and produced moths from 26 August to middle of September. 
The full-grown larva is short and stout, earth-brown, rugose; dorsal line red-brown, only distinct on the last 
segment, subdorsal, lateral and ventral lines equally indistinct. Head brownish, immediately followed by 4 
