Publ.24. VII. 1933. 
RHYACIA. By Dr. A. Corti and Dr. M. Draudt. 
73 
multifida. 
sanct- 
moritzi. 
Rh. ocellina Schiff. (Vol. 3, p. 54, pi. 11 k). We are now giving an illustration of the form — transiens transiens. 
Stgr. (10 g), which was not shown in Main Volume. The form is generally paler than ocellina, but the lighter 
grey-white markings and especially the much more obscure transverse lines are very characteristic. It occurs 
throughout Central Asia. 
Rh. alpestris Bsd. (Vol. 3, p. 54, pi. 11 k). 
Rh. multifida Led. (Vol. 3, p. 54). We are now illustrating this nice species (10 g). The original type 
from the Brenner was paler and browner than the form — satictmoritzi A. B.-H. which has a blacker ground 
colour with more striking pale markings. In fresh specimens these are bluish white. 
Rh. difficilis Ersch. (Vol. 3, p. 34, pi. 12 f). This species should also not be classified under Euxoa, but difficilis. 
probably belongs in the neighbourhood of the preceding species multifida. The illustration was not good and 
we are giving a fresh picture here (10 i). 
Rh. degeniata Chr. (Vol. 3, p. 54, pi. 13 a). The illustration is fairly good, but we are giving a better degeniata. 
one of this variable species here (10 h). The illustration of the form — defuncta Stgr. (Vol. 3, pi. 13 a) in the defuncta. 
Main Volume is very good, the main difference lies in the much more distinct transverse lines. 
Rh. dominatis Corti inecl. (11 i). This is very close to the preceding species, but has a narrower wing dominans. 
contour, no black collar, much paler markings and on underside of hindwings a wide transverse band, that 
only stretches to the centre of wing and is situate nearer the base than in degeniata. Uralsk (Emba river); Naryn. 
candelis- 
qua. 
rana. 
cyrnos. 
Rh. candelisqua Schiff. (Vol. 3, p. 54, pi. 13 a). The illustration is quite good only perhaps a shade too 
brownish. — rana Ld. (10 h) is much paler silvery grey with more delicate markings. From the Abruzzi. 
cyrnos Schaw. is a much darker grey-black form with faint markings, also the body being dark grey. Corsica 
(Monte d'Oro). 
Rh. militaris Stgr. (Vol. 3, p. 41, pi. 9 a). This should be classified in juxtaposition to the preceding militaris. 
species. We are giving a better illustration here (10 h). 
Rh. furushonis Mats. (= roseni Corti i. 1.) (10 h). This may perhaps be a form of the preceding species, furushonis. 
It differs mainly by the absent transverse lines and corresponds therefore approximately to the form rana of 
candelisqua. Ground colour whitish grey, the basal longitudinal streak as in militaris, as also are the markings 
of the stigmata and the cuneiform marks on margin. Hindwings somewhat suffused with grey. From the Amur 
territory and Saghalin. 
Rh. fidelis Joan. (Vol. 3, p. 41, pi. 9 a). This may perhaps belong close to the preceding species. fidelis. 
Rh. porphyrea Schiff. (Vol. 3, p. 41, pi. 9 a). — astur Culot denotes the race from the S. Tyrol. Generally astur. 
they are larger and darker brown with some grey suffusion and without the rich red tone. Actually the 
name was given to identical specimens from the Pyrenees. — nitescens Dhl. from the upper Bavarian moors nitescens. 
are similarly dark grey-brown specimens with curtailed white markings, only the small orbicular stigma 
being still prominent, claviform stigma being extinct. I captured this form flying in the day time at the 
summit of the Himmelsschrofen near Oberstdorf (Draudt). 
Rh. trifida Fisch.-Wald. (Vol. 3, p. 25, pi. 12 e). According to Corti this species is neither a Feltia nor trifida. 
Euxoa. The usual type has a somewhat bistre brownish tone. — atra denotes specimens from the Crimea which atm. 
according to A. Bang-Haas, differ by having deep black colouration. In consequence the white veins stand 
out more prominently. In the $$ however this is less pronounced. The latter have dull grey-black hindwings. 
Rh. spissilinea (= picturata Kozh.) (Vol. 3, p. 35, pi. 7 h). A fresh illustration is given here (7 a). 
Rh. submolesta Pglr. (Vol. 3, p. 28, pi. 12 a). According to Corti this is neither a Feltia nor Euxoa. submolesta. 
It has a rough frons but no crater. Fore tibiae with stout spurs. There is no corona to the valve. It seems 
best to classify the species here. 
Rh. cursoriodes Hmps. (Vol. 3, p. 29, pi. 6 c). 
Rh. viguraea Pglr. (Vol. 3, p. 29, pi. 6 c) 
Rh. nyctopis Hmps. (Vol. 3, p. 31, pi. 61). — ab. kuijaremsis Strd. has black-brown thorax and dark lcuijaren- 
brown forewings with white intertilled double lines. Described from Kashmir. As. 
Rh. seditiosa Pglr. (Vol. 3, p. 31). 
Subgenus: Epipsilia Him. 
Rh. hyperborea Zett. (Vol. 3, p. 36, pi. 7 k). We prefer to select the northern form as type for this species hyperborea. 
and are illustrating a typical specimen from Esthland (11 b), as the illustration in the Main Volume was not 
Supplementary Volume 3 10 
