CATASEMA; ONCOCNEMIS. By Dr. M. Draudt. 
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towards the costa. On the margin there is a row of dark brown lunules. Extremities of fringes dark brown. 
Hindwings yellow-wliite. Wing expanse: 3G mm. Tripoli, Cyrenaica. 
D. lederi Chr. (Vol. 3, p. 119, pi. 29 f). Like the preceding species, this is also very variable. The icdcri. 
illustration in Main Volume of the depicts a transition to the paler reddish grey form — discors Stgr., of discors. 
which we are now illustrating a typical $ (17 b). The correct type form, which would correspond to the original 
description, we are illustrating (17 b) and we are also giving a picture of — coneots Stgr. (17 b) the almost con cor. s-. 
unicolourous yellowish white form that is devoid of markings. All these forms occur commonly at Marash. 
— bistrigata Obth. from the same locality is a grey-white delicately marked form. It is a unicolourous white bislrujata. 
$ with stigmata barely indicated and only 2 distinct black transverse lines. We are illustrating a similar specimen 
(17 b). — rosea Trti. differs from the reddish form rubellina, by its cinnamon brown colouration. Berka. rosea. 
D. amasina Hrnps. is now indicated as occurring also at Marash, although this is not definitely certain, amasina. 
Forewings are fairly wide, dark red with bluish grey sheen and very diffuse markings. Hindwings pure white. 
D. antherici Christ. (Vol. 3, p. 120, pi. 28 c). The illustration was bad, we are reproducing a specimen anthcrici. 
from the Pungeler collection (17 c). 
D. scoriacea Esp. (Vol. 3, p. 120, pi. 29 f, g). — ab. obliterata Trti. has extinct transverse lines, their oblilerata. 
course is only indicated by a slight paleness. Also the pale subterminal line is only indicated, ground colour 
is a monotonous brown, the rufous centre of reniform stigma is absent. The discal area is only slightly darker 
at its edges. From the Apennines of Modena. 
D. korsakovi Chr. (Vol. 3, p. 120, pi. 29 g). Like the preceding species, this is also subject to great korsakovi. 
variation. A blue-grey form is given as the name type. Generally only the anterior of the two black transverse 
lines is distinct and especially prominently black anterior to orbicular stigma. The posterior line is either 
absent or merely indicated. However both lines may be completely absent. — paenulata Chr. is not a synonym, paenulata. 
It denotes the very pale ivory coloured form. - transversa Wgnr. is with cream coloured ground, both trails- transversa. 
verse lines rufous to dark brown and very clearly marked. Also the fringes are rusty brown. — unicolor ferru- unicolor. 
ginea Wgnr. (17 c) is unicoloured yellow to fulvous, all markings more or less extinct, only the dark dot before Urrugmea. 
the orbicular stigma is usually retained. Akshehir and Marash. 
D. murina A. B.-H. has most resemblance to korsakovi, but is much smaller. It has much narrower marina. 
wings and a very different, monotonous grey ground colouration, sparsely speckled with black. The inner 
transverse line is indicated by 3 minute black dots, one on costa, one each in and under the cell. The posterior 
transverse line is faint and vestigial. In place of reniform stigma there is a small black transverse line. On 
the margin there are black dots. Fringes are somewhat paler grey. Hindwings pure white in basal half with 
wide clearly outlined blackish marginal band. Abdomen white. Wing expanse: 32 mm. Syr-Darja (Aulie-ata). 
19a. Genus: Catascma Stgr. 
This Genus, which was omitted in Main Volume, differs only very little from the preceding. Actually 
only through the entirely different wing contour and otherwise it corresponds anatomically with Derthisa, 
so that fundamentally it coidd only lay claim to being a Subgenus. Only 1 species: 
C. vulpina Stgr. (16 h). This interesting species, the only two types of which have been kindly submitted vulpina. 
to me by Mr. O. Bang-Haas for examination, has much more elongate wing contour with widely protracted 
apex and very oblique margin. Antennae of with medium long pectinations, of $ only simple. Colour pale 
yellowish fulvous, somewhat darker in $ with paler costal and outer marginal areas. Both stigmata small and 
pale. The anterior transverse line forms 3 very long pointed dentations. The posterior line is faintly curved 
with fine dentations and with a slightly darker inner shade. Subterminal line is almost parallel to margin. 
The area anterior to the faintly lighter checked fringes, is almost whitish. Hindwings darker at base than in 
the whitish marginal region, separated from same by a distinct dark central line. Further there is a dark sub¬ 
terminal band. West Turkestan. 
20. Genus: Oiicocnemls Led. 
0. exacta Chr. (Vol. 3, p. 120, pi. 28 c). The illustration was a poor copy of an inadequate picture, exacta. 
We are giving a good illustration here (17 c). 
0. tnongolica Stgr. (Vol. 3, p. 120). This is not a form of exacta , but certainly a genuine species. Ac- momjolica. 
cording to Boursin's investigations the genitalia are different and further the hindwings and the entirely 
