78 
RRYACIA. By Dr. A. Corti and Dr. M. Drattdt. 
blackish brown, cell black; the quadrate orbicular stigma is open above and below, also the reniform stigma 
is quadrate; below the mediana there is a black basal spot, the short claviform stigma has a black circum¬ 
scription; anterior transverse line is double, the posterior one is only distinct behind the cell; the black sub¬ 
terminal line is barely visible. Hindwings grey with dark discal lunule. Wing expanse 34 mm. Hokkaido. 
rubi. Rh. rubi Vieiu. (Vol. 3, p. 45, pi. 10 c). In regard to this common small species, we have to add that 
quadra- specimens that are especially heavily suffused with red are named — quadratum Hbn. — floridoides Did. is 
a name given by Dannehl to very large pale and brightly marked and coloured specimens from the S. Tyrol. 
They are not identical with florida Schmidt, which is a North German form. 
turn 
floridoides. 
kcrmesina. Rh. kermesitia Mab. (Vol. 3, p. 41). It has now been ascertained that this nice species, of which we 
are illustrating the red type (Ilk) is much more widely distributed. To the localities mentioned in the Main 
Volume we have to add: Sardinia and Algeria, over wide areas and Syria (Akbes). The forms that have been 
found there have been partly described as Athetis (Garadrina) species. To be enumerated, partly as synonyms 
flavida. are: — flavida Gulot ; the type from Malaga is ochreous yellow with faint orange hue. Specimens from Algiers 
are more of a milky coffee colour. Only 3 black spots on the costa are visible of the markings, the transverse 
lines can only be discerned as minute black dots by means of a magnifying glass. The subterminal is as a 
rule slightly more distinct, with a darker shade on inner edge. Hindwings white in the brownish in the 
deledans. $. The more brownish form from Algeria is named — delectams Obth. which we are illustrating (111). — suavis 
suams. oijifi very like the red type, but it is more of a salmon reddish brown colour and has besides the 3 black 
albida. costal spots, no other markings. Described from Lambessa. — albida Ribbe ( — pallida Fclz.) are very pale 
sclinoides. whitish specimens. — seliiioides Ribbe (11 1) (= darroensis Ribbe) are grey specimens which remind one in 
virescens. colour and marking strongly of Ath. selini. — virescens Trti (11 1) has greenish grey colouration and generally 
more distinct markings, especially the central shade and subterminal line. From Sardinia. It is sometimes 
very difficult to separate kermesina from some of the forms of xanthographa. Apart from the different genitalia, 
the $ antennae give a clue. In kermesina they have regular fascicles of cilia, whilst in xanthographa in each 
fascicle there is one longer outstanding hair. — The larvae hatch in September after having been 10 days 
in the ova. The full grown larva is reddish ochre brown, the dorsal and subdorsal lines that -were present in 
the earlier stages, vanish at maturity. It has then only an indistinct lateral line and a darker band above same. 
It feeds on low growing plants and hides by day, but it is not a subterranean larva. When full grown it enters 
the earth and forms a frail earthen puparium in which it rests for 3—4 months before changing to a pupa. 
There is only one generation. The moth emerges in September-October. 
lycophotioi- Rh. lycophotioides Rothsch. (111). This is somewhat larger than the previous species. It is dark 
des. brownish buff, heavily peppered with black. Transverse lines and stigmata rather indistinct, only the reniform 
stigma has a rather more blackish centre. The pale subterminal is boldly shaded on inner side, somewhat 
like in xanthographa palaestinensis , which it sometimes closely resembles. There are distinct black dots on 
straminea. margin. Hindwings quite pure white, or faintly dusky at margin. — straniinea Rothsch. is slightly more yel- 
inconspi- lowish clay coloured and scarcely worthy of denomination. — inconspicua Rothsch. is a trifle more reddish 
cua. yellow. Both these forms are just as heavily peppered with black as the type. Algeria (Guelt-es-stel). - 
faroulti. faroulti Rothsch. established from a single $, seems to belong here, according to Corti. It is unicolourous bluish 
grey with completely extinct transverse lines and rows of dots posterior to the outer line. Reniform stigma 
sharply circumscribed with black. Hindwings darker than forewings. Wing expanse: 42 mm. El Mahouna, 
Algeria. 
algirica. Rh. algirica Corti ined. (11 1). Under this denomination in Corti’s collection, there are specimens that 
are very like the previous one, but I am unable to state, without a closer examination, whether same are closely 
related. The structure of the antennae is certainly the same, only the fascicles of cilia are perhaps a little 
more robust and longer. It has wider wings and can be immediately differentiated by the pale brown-grey 
liindwdngs, which are not white but paler at the base. Forewings are the same brownish buff colour, but 
they are more regularly peppered with black than lycophotioides ; the stigmata are larger, rounder; reniform stigma 
has no black centre; the space between the stigmata is scarcely darker; transverse lines are delicately black, 
dentate, the anterior one is only double near the inner margin; the dark subterminal shading extends from 
costa only to centre of margin; the dark marginal dots are absent. Type: 1 <$ from Lambessa. October. 
Rh. petersi Christ. (Vol. 3, p. 41, pi. 12 h). 
Rh. tenuis Btlr. (Vol. 3, p. 40, pi. 12 b). 
lorezi. Rh. lorezi Stgr. (Vol. 3, p. 40, pi. 8 k). The illustration of this remarkable species is fairly satisfactory. 
It has been captured in greater numbers recently and we are able to give another illustration here (11 i). It 
is an isolated species without closer relationship to the others of this group. 
Rh. destituta Leech (Vol. 3, p. 40, pi. 8 k). 
Rh. sikkima Moore (Vol. 3, p. 40, pi. 8 1). 
