Pull. 20. XII. 1933. 
RHYACIA. By Dr. Corti and Dr. M. Drattdt. 
81 
Rh. digna Alph. (Vol. 3, p. 38, pi. 8 d). The illustration is fairly good, but rather too large and heavy, digna. 
the species is rather daintier. The author originally created the Genus Raddea for this species. 
Rh. panda Leech (Vol. 3, p. 38, pi. 8 d). 
Rh. molothina Esp. (Vol. 3, p. 38, pi. 8e). A better illustration (12 c) is being given here. We are molothiua. 
also illustrating a typical specimen of the rather daintier race occidentals Bell. (12 c). occidentals 
Rh. perigrapha Pglr. (Vol. 3, p. 38, pi. 8 c). The illustration was quite unrecognisable. A better illustra- perigrapha 
tion of this very rare species is therefore being given here (12 c). 
Rh. kononis Mats. According to the description I am inclined to place this species here. The author lamons. 
compares same to deplanata Ev. which is scarcely similar. Forewings brown with double transverse lines inter- 
filled with whitish. The very large oval orbicular stigma is pale grey, the cell before and behind same is 
black-brown. The narrow reniform stigma is also pale. Before the pale grey marginal area there is an 
undulate subterminal line with white spot on costa. Fringes paler, with blackish base line. Hindwings pale 
grey with darker subterminal band. Only $9 are known. Wing expanse: 34—35 mm. North Saghalin. 
Rh. castanea Esp. (Vol. 3, p. 39, pi. 8g). In the south the form ab. neglecta Him. is the more usual, castanea. 
in Sicily for instance it appears to be the predominant form. In the Tyrol this grey form frequently has a 
brownish hue. In the S. Tyrol transition forms occur, i. e. neglecta with a heavy rufous tinge, which is not 
confined to the base. It is named — subrubra DM. and is said to differ from the english form laevis Haw., subrubra. 
which more or less corresponds to the nomenclatural type of castanea. — syriae Strd. has pure white hindwings syriae. 
with dark marginal band. Syria. 
Rh. obsolescens Petersen according to the genitalia, is very close to castanea. It is however not a form dbsolescens 
of same, occurring however at. the same time as typical very dark rufous castanea. In shape and markings it 
resembles castanea, but the ground colour is a nice dark leaden grey, somewhat like that of ashworthii, with 
bluish grey tone. Hindwings are darker than in castanea. The species occurs on heaths with scattered pine 
trees in Esthonia. 
Rh. flavirena Moore ( = vulpina Moore) (Vol. 11, p. 59, pi. 7 k) was omitted from Main Volume, but flavirena. 
occurs in Kashmir on the boundaries of palaearctic territory. Corti classifies it next to the preceding species. 
It is larger, a bright fuscous, veins somewhat dusted with whitish and has a very distinct ochreous yellow 
reniform stigma. Transverse lines indistinct, only a few dots indicate the subterminal line. Hindwings blackish 
brown with ochreous red fringes. Wing expanse: 46 mm. 
Rh. lucens Btlr. (Vol. 3, p. 49, pi. 11 f). 
Rh. deplorata Stgr. (Vol. 3, p. 49, pi. 11 g). The illustration in the Main Volume was unsatisfactory, deplorata. 
A better illustration is given here (12 d). 
Rh. sennina Stgr. (Vol. 3, p. 50). This is probably a genuine species. Apart from the narrower wing sennina. 
contour, it is much darker and the ground colour more speckled, markings less distinct, the dark patch in 
cell between the stigmata is absent as also is the black basal streak. We are illustrating (12 d) a specimen 
from Sutshanski-Rudnik. 
Rh. senna H,-G. (Vol. 3. p. 50, pi. I I a). 
Rh. contorta Rbl. & Z. is somewhat larger than the closely related senna. It is wider in the wing, of contortn. 
glossy fuscous ground colour without the whitish grey admixture. Stigmata and double transverse lines are 
intertilled with brown and not with whitish grey. Marginal area a striking pale brown before the subterminal 
line. The latter has a dark shadowy inner edge. Hindwings dark black-brown, tips of fringes white. Wing 
expanse: 37 mm. From Albania (Beshtriq), a single 2 captured in August. 
Rh. anachoreta H.-S. (Vol. 3, p. 50, pi. 11 a). The illustrations are satisfactory. 
Rh. luperinoides Guen. (Vol. 3, p. 50, pi. 11 a). 
Rh. stridula Hmps. (Vol. 3, p. 50, pi. 11 a). 
Rh. cuprea Schiff. (Vol. 3, p. 50, pi. 11 a). The area of distribution, given as N. Europe, can be extended cuprea. 
to cover S. Bavaria, the entire Alps and Italy. The form from south Bavaria, that inhabits the moors, is 
named — palustris Osth. It is larger than the alpine specimens and is of uniformly dark colouration without palustris. 
paler basal and marginal areas. The form from the Abruzzi I denominate — livescens j.n. (12 d). It is more livescens. 
bluish grey in colour, the discal area is scarcely darker, but the cell is deep black between the stigmata with 
their delicate white circumscriptions and the claviform stigma is large. Also the mediana is delicately white. 
From Pescocostanzo. Specimens with a quite pale brown ground colour and almost extinct stigmata are 
Supplementary Volume 3 11 
