CIDARIA. By L. B. Prout. 
127 
to Niesiolowski (Polsk. Pism. Ent., Vol. 6, p. 90), Lempke (Ent. Ber., Vol. 9, p. 2), Derenne (Lambill.. Vol. 34. 
p. 74) and particularly Warnecke (Int. Ent. Zeitschr., Vol. 25, p. 77, 85). The last-named author correctly 
observes that the readiest distinction in the genitalia (easily seen with a quite moderate hand-lens) is in the 
costa, which in spadicearia is more produced and much more strongly curved (to at least a right-angle with 
its base). — ab. tromsoensis A. Fuchs (= tromsoeensis Strand) (Vol. 4, pi. 9 e, as alpinata). As this is a rather tromsoensis. 
small and not very sharply marked local aberration in northern Scandinavia, it was probably inaccurate 
to sink to it the following. — ab. alpinata F. Hoffm. (12 c), rather prevalent at high altitudes in Central Europe, alpinata. 
etc. (1300 m and upward), is generally large and well coloured, though with the same strong expression of 
the black lines on the light red median band as in tromsoensis. — ab. griseocamparia Vorbrodt is a development griseocam- 
of alpinata, still more variegated, the centre of the median area being narrowly light-grey, only its margins 
cherry-red. Noticed from Novaggio and Mte. Generoso. — ab. emutata F. Wagn. is a still further development, emvfata. 
mainly yellowish white, the centre of the median area broadly pale, the markings standing out strongly 
by contrast. The type was from Riva, Gardasee, but a few other examples are known. — ab. georgi Meissl georgi. 
has been recorded from S. Bavaria by Osthelder, but his figure and description shows that he uses the name 
for any much darkened (grey-black) form with the markings obsolescent. Meissl's type came from the Vienna 
Schneeberg. — ab. radiata Dioszegliy , from the Retyezat Mountains, seems to be a curious individual aberration, radiata. 
dirty white-yellow, the lines obsolete, the median band brown-grey, its distal teeth rounded off, the terminal 
area (from the position which would normally be occupied by the subterminal) rayed with brown on the veins. 
— ab. effusa L. Mull., like the citrata aberrations which are thus designated, has the pale band outside the effusa. 
median area fused with the brown terminal band. A A from Warscheneck, Upper Austria. It is by no means certain 
that. — ab. extrema C. Schneid., a weakly marked Wiirttemberg specimen with the median band of the fore- extrema. 
wing shading off into the (poorly marked) distal area, deserves separating. Dr. Muller himself occasionally 
applied his “collective name - ’ to this fusion of the median band with the pale area beyond (e. g. alternata ab. 
effusa). — ab. nigrofasciata Djakonov is a rare form with the median band blackish, as in ferrugata ab. unidentaria. nigrojascia- 
Described from the Sajan Mountains. I have seen a slight modification from the same district, with the ground¬ 
colour unusually white. Lempke has recorded ab. nigrofasciata from Holland. — The supposed races of spa¬ 
dicearia are really closely allied species. 
C. asiatica Stgr. (12 c). Described in Vol. 4 (p. 226) as a race of spadicearia, seems to differ constantly asiaticn. 
not only in the almost straight postmedian line, the reduced or obsolete cell-dot of the hindwing and in the 9? 
the absence of the dark border of the hindwing but also in the genitalia, the valves being more compressed. 
I have seen it from various localities, Alexander Mountains to Lake Baikal. It varies a little in coloration and 
in the strength of the markings, but apparently far less than spadicearia. 
C. insperata Djakonov (= inspersata B.-Haas), described without reference to asiatica, must surely be insperaia. 
nearer to that than to spadicearia. From the very careful description I can gather nothing that would differ¬ 
entiate it except its rather smaller size (expanse “19,5—20 mm”), the subterminal spots at the radials still 
more obsolete, cell-dot of hindwing more distinct, both wings beneath more strongly darkened proximally 
and possibly the wings narrower and more produced. The shape and orientation of the valves perhaps also 
differs and there may be differences in the aedoeagus. Buiba Lake, Sajan Mountains, 27 June and 2 July, 
1 <J, 1 ?• 
C. stupida Alph. (12 c). This is also a separate species and notwithstanding its superficial likeness to stupida. 
pale ferrugata, has nearly the genitalia of spadicearia, the costa of the valve (“harpe” of Vol. 4, p. 226) lacking 
the angular prominence which characterizes ferrugata-, spines at orifice of aedoeagus more numerous than in 
either. It seems to be widely distributed in eastern Palaearctic Asia; Sterneck has added Szechuan and Corea 
to its recorded range. The latter may belong to the following race. aridela subsp. nov. (12 c) is smaller aridela. 
(25—28 mm), paler, distal area of forewing except at costa weakly marked, the spots at the radials generally 
very small. Saccus more abruptly narrowed near its end. Ohabarovsk, Ussuri, 2 —17 June (E. Borsow), 9 (Jq, 
type in Tring Museum. Specimens from the Inn-shan and perhaps from Szechuan may, to judge from very 
insufficient material, be somewhat intermediate between stupida and aridela. 
C. ferrugata L. (Vol. 4, pi. 9 e). Perhaps less variable individually than spadicearia but more prone ferrugata. 
to develop geographical races, both in the Palaearctic and the Nearctic Region. Those of the latter fauna, 
comprehensively known of /. inclinataria Walk., will be considered in Vol. 8. — ab. ruficostata Prout. In dealing, ruficosfala. 
many years ago, with the minor variations which are often transmitted by heredity (Trans. City Lond. Ent. 
Soc., Vol. 8, p. 30) I used this name for the forms in which the median area of the forewing, predominantly 
black (ab. unidentaria), was definitely reddened at the costa. I now doubt whether it needed a name, but think 
it necessary to put its existence on record. — ab. obscura Dahlstrom. “Forewing with median area dark red, obscura. 
base and outer margin dark ochreous, almost brown; hindwing dark grey.” Hungary. As this was erected 
(1900) at a time when continental entomologists had not learned the delimitation of typical ferrugata and 
spadicearia, there is no certainty that this does not refer to a very dark aberration of the latter; in fact, my 
nearest match to it is a (rubbed) spadicearia from S. Devon. Without access to the type, no certainty can be 
