PM. 5. Vll. Wit POECILOCAMPA; ERI0GA8TEH. By Dr. K. Grunberg. 153 



between the various specimens ; the back black, bordered at each side by abroad white longitudinal stripe, which 

 is often separated into spots; there are also red or reddish yellow markings. On each segment a narrow 

 transverse band reddish yellow or light yellow. Head black. Hair brownish, on the dorsal warts black. 

 Until July on Salix, Betula, Crataegus, Hazel, Blackthorn; the form ariae also on Ainu s. Pp red-brown, 

 very short and stout, with broad obtuse tail-end, in an ovate bluish grey cocoon. The moth in the autumn, 

 not everywhere and in many places of its area of distribution not at all common. 



T. Jlicis Ednib. (24 c). Smaller than crataegi, the median band narrower and its margins less dentate; tUris. 

 submarginal line more distinct. Hindwang brownish grey. Thorax dark, collar lighter, with a dark border. 

 Andalusia and Catalonia. — Larva slender, tapering anteriorly, reddish brown, evenly hairy, segment 1 bluish 

 grey. Dorsum with 2 yellow longitudinal lines connected at the incisions and enclosing on each segment 3 yel- 

 low papillae bearing hair; 5 similar papillae on each side below the yellow line, one larger red-brown wart on 

 segment 11 and two on segment 5; on segments 2, 3, 5 and 10 two black spots behind the middle papilla. May 

 to June, on evergreen Oaks. Pupa in a hard brown cocoon. 



4. Genus: Poeeilocampa Ste-ph. 



Allied to Trichiura; but the frontal process broader and shorter; wings longer and narrower, thinlv 

 scaled, transparent, the scales being divided nearly to base into 3 — 4 hairs; marginal scales shorter. In the 

 forewing vein 8 from the cell or stalked, 9 and 10 on a long stalk, both ending in the costal margin or 9 in the 

 apex; in the hindwing 6 and 7 from a point or on a stalk branching off from the anterior side of the cell. 

 Middle tibiae without spurs; hind tibiae with 2 minute hardly visible end-spurs. — Larva slightly flattened, 

 clothed with sparse and short hair, segment 11 with feeble protuberance, 1 — 10 without dorsal warts, but all 

 the segments with a wart-like hump; above the legs 1 or 2 warts. Rests in daytime closely appressed to the 

 bark of trees or branches. Pp in a hard cocoon intermingled with earth, red-brow2i, naked, with numerous 

 hooked bristles at th cremaster. — The moths appear in October and November, when the (J(^ can be observed 

 flying about street-lamps on warm nights. They are not rare, but do not appear ever to occur in such abundance 

 as is the case from time to time with Malacosorna. 



P. populi L. (= desolata Mull.) (24 f). (J blackish brown, with whitish or gi'ey collar; $ with somewhat popuU. 

 lighter wings, black-brown thorax, light grey-brown collar and dark brown abdomen. Forewing with a narrow, 

 white or yellowish, dentate median band and an often indistinct subbasal band. Hindwing with a white, ill- 

 defined, median band. Fringes of both wings with light spots. L^nderside like iipper, somewhat lighter, the 

 bands rather broader and chffuse. Europe, Central Scandinavia to Northern Spain and Sicily, in Asia as far 

 as Amurland. The species varies much in the ground-colour: the base of the forewing reddish yellow and the 

 distal margin yellowish (ab. flavescens Spul.), base of forewing and distal half of both wings whitish with broad flavesccns. 

 pale fringe-spots (ab. albomarginata Heyne), predominantly light-coloured specimens with the median and distal albomargi- 

 marginal areas of the forewing whitish and the hindwing entirely white (ab. albescens Heyne). — The high- "^^^• 

 alpine form from Switzerland, alpina i^rey (24 f), is larger, the marginal area clouded with grey and the light alpina. 

 subbasal band of the forewing distinct. — canensis Mill., from Southern France, is likewise essentially larger than canensis. 

 the t)rpe-form ; the ^ almost entirely black, the median band of the forewing sharply dentate, the marginal area with 

 light grey clouds, the white median band of the hindwing rather well-defined. $ brownish grey. — The Sicilian form, 

 cnlberlae. calberlae Rdgusn, usually united with canensis and probably not separable from it, has likewise a sharply 

 defined basal band on the forewing, and in both sexes an accessory, external, median band composed of two separate 

 parts, which band, however, occasionally occurs also in canensis. — lydiae Krulik., from Eastern Russia, doubtless lyiJiar. 

 identical with the dark Siberian form, has in the o the body entirely black, the collar being bu; little lighter, the 

 wings greyish black, without any brown tint ; the basal band of the forewing is absent, the median band feebly devel- 

 oped and shghtly dentate, parallel with the margin. — Egg oval, flattened, grey or dark brown, deposited 

 singly or in small clusters. Larva greyish yellow to whitish, black above, wath light hair on the sides, large 

 black dorsal spots which touch one another in the centre and irregular black spots, sometimes being almost 

 entirely without markings. Venter with black median spots, which are especially large between the abdominal 

 legs. Until July on Oak, Birch, Lime, Aspen, May, Blackthorn, nlpina especially on Larch (until August). Pp 

 blackish brown, in a hard, dirty grey cocoon intermingled with sand and earth. The moths in the late autumn, 

 from the end of September until far into November, singly, but not rare, and apparently not local. According 

 to Staudinger the specimens from Amurland are darker than European ones and have no light collar. 



5. Genus: Eriogaster Oerm. 



Eyes hairy. Anteima of ^ with long pectinations, of $ with very sliort ones or but feebly dentate {ki- 

 nestris). Palpi short, concealed under the dense hair. Wings entire, somewhat shorter ;vnd broader than in 



II 20 



