LYMANTRIA. By M. Gaede. 
101 
a band of white streaks and is thus slightly less dark than the <$. Perhaps this is the first sign of mela- 
nic forms developing in Belgium’s industrial areas. — fasciata Hannem. has a wide dark central band on fasciala. 
forewings, in which is situate a white ring with black central spot. — A few names have been given from 
Russia. — gracilis Krul. $ has a completely white upper forewing with wide black margin. This form is gracilis. 
rare and the S thereto is unknown. East Russia. — flaviventer Krul. has, as the name indicates, the abdomen flaviventer. 
with yellow underside instead of rose. - kusnezoWi Koloss. $ has wings of yellowish white colouration. Trans- kusnezowi. 
verse'lines are not present or perhaps they are only faded, as the specimen seems to be a worn one. Urals. 
— brunnea Stipan. denotes a $ that is grey-ochreous brown wings and body with diffuse markings some- brunnea. 
what like eremita. 
L. aboleta Stgr. As the specimen illustrated in Vol. 2, pi. 21 a was poorly marked, we are giving here 
(8 b as obsoleta) an illustration of a well marked pair. 
L. atlantica Rmb. (Vol. 2, p. 129, pi. 20 g). maura Oberth. is a small melanic form. On forewings in- maura. 
ner and outer lines scarcely contrast with the dark ground. Hindwings of A uniformly dark, slightly paler 
than forewings, the abdomen which is usually red is dusky. Sebdou (Algeria). 
L. mus Oberth. (8 g) is like atlantica in the arrangement of its lines, but much smaller with grey-yellow onus. 
ground colour. Erom outer line there is a streak to lunule at disco-cellular nervure. In the lunule a black 
streak. Hindwings somewhat paler, an outer band is indicated. El-Utaja (Algeria). 
L. kruegeri Trti. (8 f) is similar to atlantica and lapidicola H.-Schdff. but somewhat more compactly kruegeri. 
built. Pectinations of antennae of are longer than in atlantica and shorter than in lapiclicola. Fore wings rosy 
brownish with 3 transverse lines. The inner one is closer to base in kruegeri than in atlantica ; the middle 
one is wider and more diffuse. The outer one is more oblique inwards at inner margin in atlantica. The small 
black radial basal streak of atlantica, is absent here. Hindwings somewhat rosy brownish with wide dark marg¬ 
inal band similar to lapidicola. The $ has hindwings uniformly dark and is also somewhat darker on fore- 
wings, markings more diffuse than in $. Abdomen is rose coloured on upperside, somewhat darker at tip 
without dark rings. $ 32—37 mm, $ 40 mm. Gennargentu (Sardinia). Perhaps kruegeri is only a form of 
lapidicola (Vol. 2, pi. 23 e). _ 
L. militaris Oberth. ^ somewhat larger than atlantica. Forewings buff without transverse lines. A black militaris. 
radial streak extends from base under the cell; above it there is a black spot. At disco-cellular there is a 
“V” shaped black angular streak with a ray extending right into the middle cell, so that a “Y” is formed. 
Behind same there is a heavily dentate black double submarginal line and black marginal streaks. Hindwings 
coloured like forewings without discoidal spot or band. Colomb-Bechar (Algeria). 
L. oberthuri Luc. (Vol. 2, p. 130). The A of the form belvalettei Dum. from the Sahara differs from belvalettei. 
typical from Nefta by its greater size (33 instead of 30 mm). Ground colour of forewings is reddish ochreous, 
not grey-white. Surface of wings is bestrewn with white above the inner margin and marked by a fine black 
network. There are black scales above and below the lower wall of cell and similarly in the outer inter¬ 
stices of the veins. The reddish fringes are spotted with black. On hindwings the dark marginal band is 
more extensive and diffuse. The $ varies considerably, both from its as also from the typical $. It is 
smaller (28—30 mm instead of 40 mm). Forewing is narrower, ground colour ochreous with indications of 
black transverse lines and besides there is a black streak below the cell, the clarity of the markings varies 
in the single specimens. Between the ochre-red veins there are many black and a few white scales. Hind¬ 
wings ochre-brown with indications of dark marginal band. — The colour of the larvae that grow to 35 to 
45 mm length, varies from pale grey to ochreous. It has white and brown longitudinal lines with 8 tufts 
of hair on each segment. It feeds on Calligonum comosum and hibernates. 
L. sakaguchii Mats. Grey-white with black-brown lines on forewings. Near base there are 2 black dots, sakaguchii. 
The inner line is situate almost in centre of wing, it is incurved in cell and at submedian fold and excurved 
on median nervure. Outer line double, heavily dentate with a bold curve inwards above vein 5. I ringes 
checked with black. Hindwings similarly coloured, widely black-brown on costa to vein 6. A 30—60 ( ?) mm. 
Okinawa, may still be found on palaearctic territory. 
L. nigriplagiata sp. n. (8 f, g). Perhaps related to moesta Swh. (Vol. 2, p. 131). Thorax grey-white, nigri- 
Forewings buff. The inner line only apparent below the cell, widely white and very oblique. Behind same 
below the base of vein 2 a black spot. Outer line near margin, double, heavily dentate and with white lunu- 
les in the dentations, forming a white spot below vein 2. Abdomen and hindwings grey-brown, paler in in¬ 
ner area. The $ is a very pale grey-brown. The black main spot and the pale lunules very diffuse. A second 
A is darker brown, the inner line of forewings is absent. 32—40 mm. Siao-lu, Tien-tsuen. Type in the Brit¬ 
ish Museum. 
L. concolor Wkr. The form superans Wkr. was already discussed in Vol. 2, p. 131. It has increased 
black markings. I have received from the British Museum a $ each from Ta-tsien-lu and Siao-lu that bear J 
markings i. e. hindwings have a marginal band and abdomen is red in the anterior half and yellow in post- 
