ACRONYCTA. By Dr. M. Draudt. 
11 
A, sapporesisis Mats, from the same locality also closely resembles cuspis, differs however from same 
by the completely silvery white hindwings of A ; fore wings pale grey with heavier black markings; basal dart- 
shaped mark forked at end and with white edge outwardly below median nervure; both stigmata white, reniform 
large, brownish in centre with black outline inwardly, both conjoined by a black streak; the posterior transverse 
line quite extinct only indicated by 2 black marks on costa; the white subterminal line widely bordered out¬ 
wardly by a black-brown band; the anal dart-shaped mark with white border on lower edge,- white fringes 
with dark checks. Hindwings of $ more inclined to grey-white with narrower dark postmedian and some marg¬ 
inal dusting. Expanse of wings A 37 mm, $ 41 mm. Sapporo in June and September. 
A. orietttalis Mann related to cuspis, somewhat smaller on an average; ground colour is more whitish 
and more coarsely dusted with black; markings very similar to species named but the anal dart-shaped mark 
much finer and thinner. Pontus, Bithynia and Lydia. — subsp. galvagnii Schaiv. (1 g) has ground colour of 
deeper grey-black shade with boldly pronounced dentate lines of deep black colour. Herzegovina (Mostar). 
A. hercules Fldr. (1 g). We are giving a better illustration, the hindwings in the figure on plate 2 k 
were too dark. 
A. taurica Stgr. (1 g) should be separated from cuspis. It is certainly a genuine species, reminding one 
more of a small aceris; it has quite white hindwings with faint shading only in subapical area. Veins finely dark 
in marginal area. Forewings without the black streak between orbicular and reniform stigmata, the anal dart¬ 
shaped mark is delicate and does not extend to margin. Occurs at Lebanon in Syria besides in Asia Minor 
(Taurus, Hadjin, Zeitun). 
A. aceris L. —- candelisequa is a more lead grey form, whilst infuscata Haw. is more suffused with olive- 
brownish. Petersen mentions in his Fauna of Esthland a completely sooty black specimen, which seems to go 
beyond infuscata. —* asignata Hirschlce from a single specimen from Enzersdorf near Vienna is quite without 
markings on upperside, hindwings also without curved line. — In elineata Dujrane the black subanal streak 
is missing, the customary markings are more delicate than in normal specimens, the wings finely sprinkled 
with black. Described from Belgium. — subsp. judaea Stgr. (1 g) we illustrate a fine specimen from Palestine 
ex the PiiNGELER Collection. — calceata Dannehl (1 g) differs little from same, it has perhaps slightly more 
blackish dusting in inner marginal area and a slight yellow-grey tinge behind the postmedian; hindwings also 
slightly whiter. From the central Apennines. 
A. major Brem. — anaedina Btlr. is not purely synonymous, but designates darker forms, especially on 
hindwings, from Hondo and W. China. —- anaedinella Strd. (= ab. 2 Hmps.) with extinct basal and postmedian 
markings. From central and W. China. Probably this name is synonymous with defigurata Warr. 
A. alni L. — ab. nigromaculata Gelin has a more or less widely blackened marginal area on hindwings 
and represents a variety that apparently occurs relatively frequently in W. France. — ab. eothina Dannelil (1 e) 
from Drautal and Klagenfurt is heavily suffused with rose. From series of these specimens it would appear 
that 5% of the dark rosy specimens have very heavy black marking and orbicular stigma is always missing. 
The rose colour however soon fades in the collection and turns to reddish yellow. 
A. auricoma F. — The somewhat smaller and paler Spring form is separated as — vernalis Frings; it is 
the commoner form that occurs from April to June, whilst the summer generation is only a partial brood in July 
and August. pepll Hhn. (1 h) is a dark, small and single brooded form from the North and the Alps. The 
larva of this latter form seems to have a constant variation from that of auricoma as the warts are white 
instead of being red. 
A. schwingenschiissi Zerny (1 h) is very close to auricoma and the arrangement of the markings is the 
same. The ground colour however is a pure iron-grey with faint violet tinge; transverse lines and stigmata 
distinct and deep black; the black longitudinal streak extends from the basal edge of reniform stigma to the 
margin, the black central dot is absent from the longish orbicular stigma. Hindwings pure white with veins 
darkened towards the margin. It is less coarsely scaled than the somewhat similar euphorbiae. It occurs in 
June in Aragon and Andalusia. 
A, pulverosa Hmps. (= pruinosa Leech nec Guen.) (1 h) is also like auricoma-, it is more besprinkled 
with brown, the antemedian transverse line is less distinct, the white orbicular stigma is obliquely quadrate and 
not round; the posterior transverse line is distinctly double, especially at costa. The marginal area is very dark 
on the dusky hindwings and an indistinct postmedian is present. — fuscosuffusa Strd. (= ab. 1 Hmps.) has 
forewings more heavily suffused with black-brown. Japan, N. China. —- subsp. sachalinensis Mats, has a more 
slender and smaller body; wings much paler, only a quadrate mark between the stigmata which is distinct and 
darker; a further paler spot between postmedian and reniform stigma, so that the inner part of the postmedian 
diffuses here; hindwings pale grey with dark discal spot and submarginal band. Wing expanse 28 mm. From 
S. Saghalin in July . Possibly a genuine species. 
sapporen- 
ni$ 
or lent alts. 
galvagnii. 
hercules. 
taurica. 
infuscata. 
asignata. 
elineata. 
judaea. 
calceata. 
anaeadina. 
anaedinel¬ 
la. 
nigro¬ 
maculata. 
eothina. 
auricoma. 
vernalis. 
pepli. 
scliivingen- 
schussi. 
pulverosa. 
fusco¬ 
suffusa. 
sacha¬ 
linensis. 
