TARSOLEPIS; CERURA. By M. Gaede. 173 
17. Family: Notodontidae. 
1. Genus: Tarsolepls Btlr. 
T. japonica Wilem. This is the form illustrated as sommeri Hbn. in Vol. 2, pi. 48 g (p. 284). The japonica. 
differences between the form japonica and the species sommeri are very insignificant, japonica is smaller 
(68—70 mm), the hindwings are dark brown, still darker than shown in the illustration on pi. 48 g. The silver- 
spots are shorter than in sommeri, but this does not appear to be always the case. On the other hand the 
inner edge of the lower spot is indented, which is not the case in sommeri. Japan. 
4. Genus: C'eriira Schrlc. 
C. furcula Cl. (Vol. 2, p. 286, pi. 44 c). In this species Lenz has drawn attention to a material difference 
in the northern and southern german races. As it is not certain which of them is typical, both have been 
denominated. Specimens from Pommerania are almost as white as bicuspis. Their larvae feed chiefly on birch 
and also on willow; they are named var. betulae Lenz. The race from the Maine and Upper Bavaria is darker. 
The larvae feed on willow and beech: var. salicis Lenz. The larva of betulae will not feed on beech. — Very 
dark specimens similar to borealis Bkh. occasionally occur very far south. For instance Dannehl reports such 
a specimen from Terlan (S. Tyrol). In the South Carpathians a race occurs in which only the hindwing is 
black. Markings of forewing, clear and distinct, quite typical: transsylvanica Dhl. — In alpina* Bartel 
(15 d) from Zermatt only the outer half of hindwings is shaded. Basal area of forewings is normally white. 
Central and marginal areas are somewhat suffused with grey, so that the black dentate lines are indistinct. 
— ajatar Schilde is indicated in Vol. 2, as being synonymous with bifida. From a cotype in the collection 
of Pungeler, I am inclined to classify it with borealis. - pallescens Rocci has a grey band displacing the 
customarily black band. Apical markings and marginal spots are paler. The orange-yellow edge to central 
band is missing. Liguria. — The northerly obsoleta Haanshus appears to be similar to pallescens. — Specimens 
occur in which the dark band is interrupted as in the species interrupta. 
C. bifida Hbn. (Vol. 2, p. 287, pi. 44 c). In spite of the wide distribution of this species, from polar 
regions to North Africa, its variability is not great. A sub-form of the northern race saltensis Schdyen is 
described corresponding to furcula-alpina. Only the basal area of forewings is white, the rest of the wing 
is a deeper grey than in alpina. On the other hand the hindwing is white, only slightly grey at margin. The 
usual black marginal dots are conjoined forming a fine grey line: poecila Stichel. — renigera Bub. is a curious 
form. Only the inner edge of the median band and a small patch at inner margin is retained, the rest is 
paler. But the space behind same, which is usually pale, is dark as far as the disco-cellular and more nar¬ 
rowly to the submedian fold. There it conjoins with an extension of the subapical spot. — interspersa Rothsch. 
from Algeria is a subsidiary form to the southern urocera Bsd., in which in the $ the dark median band 
is sharply contracted on the median vein. In the q it is reduced to a line there or completely interrupted. 
— intervalla Kosh. is an aberration in which the blackish median band is only retained in the form of two 
patches on costa and inner margin. It is not stated whether the edge lines of the median band are complete 
or whether they only outline the patches. 
G. interrupta Christ. (Vol. 2, p. 287, pi. 44 c). leueotera Stichel is a form, which is close to syra Gr.- 
Grsh., but the ground colour is pure white and not faintly yellowish. The narrow median band and subapical 
spot are interspersed with white scales. Sultanabad in Persia. - It is a matter of personal opinion whether 
one considers petri Alph. (15 d) as a form of interrupta (as was done in Vol. 2) or whether one considers 
same as a species (as Pungeler did). The general impression is in any case a very different one. We are 
illustrating a A of petri, in which the outer median area is unusually dark, so that the white subterminal 
line contrasts very strongly. 
betulae. 
salicis. 
transsylva- 
nica 
alpina. 
pallescens. 
poecila. 
renigera. 
interspersa 
intervalla. 
leueotera. 
petri. 
* This and the other forms described by Bartel were classified in this way in the PunGELER collection, I have 
not been able to find the original descriptions anywhere, so that possibly these have hitherto only been trade names. 
