14 
THALATA; BRYOPHILA. By Dr. M. Draudt. 
pavifica. C. pacifica Filipiev (11) is unusually close to pontica, differs however in the genitals. According to its 
author it can be distinguished from pontica in that the light area between the inner line and the central shade, 
which encloses the orbicular stigma, runs less obliquely to the inner margin, the reniform stigma is greyer and 
not so distinct as in pontica, apex of wings remains lighter; there is a distinct white streak in the subanal area, 
which is absent in ponitica or only faintly indicated. Hindwings are more heavily darkened at the margin and 
are quite brown in the $. The last segment of the palpi is somewhat longer and the legs are darker. Sutshan 
Icalgana. district, Sidemi; we are able to illustrate a pair from Amur ex the Pgngeler Collection. — kalgana /. n. (1 1) 
Mr. 0. Bang-Haas has kindly placed at my disposal a specimen from Kalgan (in the Province of Chihli) with 
a more chocolate brown colour and which besides has a more glossy scaling and clearer finer markings with a 
less dentate postmeclian line. 
albonigra. C. albonigra Herz. held by many authors to be synonymous with pacifica, is said to be considerably 
smaller than same, the inner line lying closer to base, the orbicular stigma scarcely perceptible, hindwings 
uniformly brown. Amur; W. China. 
G. praeclara Graes. 
obscura. G. ligustri Schiff. — ab. obscura Mellaerts from Belgium closely resembles sundevalli, has quite black 
troni. wings with greenish markings, hindwings similarly blackish. — ab. froni Huene has paler whitish ground colour 
in place of olive green with rose coloured and faintly greenish sheen; seems to occur fairly frequently in Esthland. 
The larvae feed there on young oak trees. A form that predominates in the S. Tyrol, which seems to me to be 
effusior. close to troni is named effusior Dannehl (1 1) a type of which we can illustrate thanks to the author in the same 
way as the following two: it appears much brighter owing to an increase in the white which is admixed with 
roseo- rose and green hues transforming the black markings into light grey and grey olive. — ab. roseoradiata Dannelil 
radiata. ^ j) is a form in which the rose coloured interspersions form 3 rosy brown or violet longitudinal rays from base 
viburni. to margin; this is a rare form from the S. Tyrol. — viburili Dannehl (11) is the opposite extreme, uniformly 
mouse-grey with a very narrow darker transverse band; the large whitish spot in the outer area scarcely lighter 
than ground colour. Fairly common among the summer form in S. Tyrol and apparently very similar to sundevalli. 
G. obscura Leech. 
16. Genus: Tlialats® Wkr. 
This genus, which includes one african and several indo-australian forms, is closely related to Acronycta 
but differs chiefly by the presence of a small horny projection on the clypeus with raised edge. Only one species 
touches palaearctic territory: 
sine ns. Th. sifiens Wkr. The small grey-white species was classified in Vol. Ill under Acronycta, but actually 
belongs here. It reaches palaearctic territory in W. China and is described more fully in Vol. XI, p. 36 and 
well illustrated there on pi. 5 d. 
2. Sub-family: Bryophilinae (for Metachrostinae). 
We are utilising the old name: Bryophila instead of Metachrostis, because Treitschke described it 2 
years previously to when Hubner established his Metachrostis and Warren has meanwhile altered his classi¬ 
fication in the indo-australian part accordingly. 
19. Genus: ilryoplilla Tr. 
pineti. B. pineti Stgr. (2 a) cannot be recognised by the illustration in Vol. III. This species reminds one most 
readily of the Geometridae Pachycn. hippocastanaria in colour and markings but it has wider wings. This very 
rare species was hitherto only known from a few specimens from Andalusia, Castile and according to Korb from 
boursini. a single specimen from Aragon (Teruel) but has lately been found in a special form: — boursini Gleu also in the 
Htes Alpes. In these the forewings are grey, dusted with black without stigmata and the yellowish spot at 
close of cell; transverse lines are only indicated by spots on costa; a median suffused shadow stripe is very 
distinct, the elbowed line is more distinct, whitish, bordered with black outwardly, subterminal line radially 
dentate on veins. Hindwings dusky grey. Captured in July. 
B. albonotata Stgr. belongs to the Genus Ghytonix (compare there). 
petraea. B. petraea Gum. (2 a) has meanwhile been frequently captured in Spain and Mauretania (Batna, Guelt 
es Stel, El Kantara, Maafa, Lambessa) in September. It is a very variable species: pale grey, almost without 
