15t 



KKIOGASTEH. By Dr. K. Grunberg. 



Poerilocmnjxi. with more conv^ex distal margin, scaling rather thin, the groimd-scales likeA\'ise divided into 

 filaments. Forewing with 12 veins, 6 — 8 free from the upper angle of the cell or 6 and 7 resp. 7 and 8 on a 

 short stalk, 9 and 10 on a long stalk, 2 — 9 run into the distal margin, 10 into the apex. In the hindwing 8 

 already from the base united with the cell for a shorter or longer distance, 7 from the anterior side of the 

 cell, 6 from the apex of the cell; basal cell very small, with 1 or 2 simple or branched accessory veins 

 rxinning to the costal margin. C?ll closed in both wings. Fringes short. Body and legs clothed with dense long 

 woolly hair. 9 wth broad anal tuft. — Larva elongate-cylindrical, each segment with 2 larger or smaller dorsal 

 spots of reddish yellow felty hair; abdominal legs reddish yellow or light brown. Pp very short, stout, with 

 broadly rounded tail-end, in a hard j)archment-like cocoon which is acorn-shaped and has an air-hole and hd. 

 The moths in the autunui; the (^(^ fly soon after they have left the pupa, which usually takes place late in tin- 

 aft ernoon. 



rimicola. E. rimicola Hbn. (= catax Esp.) (24 f, g). Uniformly light reddish brown, $ with a grey anal tuft. 



Forewing with whitish discal spot and sometimes a more or less distinct, incurved light median band. Lighter, 

 more yellowish specimens also occur. Central Europe, from Germany and Northern France to Roumania. — 



inspcrmi. inspersa Sigr., from Cilicia (and Lydia I), is smaller and darker bro^\^l than European specimens, the upperside 

 heijig densely dusted with yellowish scales. Aiial wool of $ thinner and shorter, more brownish, with whitish 

 median stripe. — Larva ashy grey, with grey or brownish hair, and broad, grej-ish blue dorsal stripe bordered 

 with black and yellow. On segments 4 — 10 two brushes of short reddish yellow bristles, 2 and 3 each with a large 

 black dorsal spot also bearing reddish yellow bristles. May — June, gregarious when yourg. especially on hedges 

 of Black- or Hawthorn, but also on old Oaks. Pp light brown, in a hard, brown or yellowish brown cocoon 

 with lid. The moths are on the wing in August and September, the pupa also lying over in exceptional cases. 

 Spoi'adical, in the South common in many places, rarer in the North. 



pMlijypxi. 



cata.r. 



E. philippsi Bertol. (24 g). Most nearly allied to E. riinicoki, somewhat smaller, M'ith lighter ground- 

 colour. Antenna of ^ more shortly pectinated. Forewing without white discal spot. Anal wool of 5 silvery 

 grey. Syria. Cocoon Mghter than in rimicola, dirty yellowish brown, a regular elhpse, .similar to that of Las. 

 trijolii. 



E. catax L. (= lentipes Esp., everia Knock) (24 g). q : body and basal half of forewing bright golden 

 brown, distal area of both wings isabella-colour ; forewing with oblique ochreous median band, Avhich is not 

 sharply bounded. $ lighter or darker brown, with grey anal wool; forewing with narrow yellowish median 

 band. (J and $ with sharply marked white discal spot on the forewing and a wliite costal border to the hind- 

 wing. — Egg flattened, brownish grey, deposited around twigs in oblique rows and covered with wool. Larva with 

 brownish grey hair, yellowish brown, ^^•ith velvetv black incisions and blackish brown head, blue lateral spots, 

 wliich are pencilled and dotted with yellow, and blue-black dorsal spots. Until Jidy in a common web on 

 Black- and Hawthorns, Oak, Poplar and Birch. Pp dark brown, in a yellowish or brown, very hard, barrel- 

 shaped cocoon, 



E. lanestris L. (24 h). Very dark brown, with hght browii antemiae; $ with dense grey anal wool, 

 Forewing with a white basal spot centred with dark brown, a prominent white discal spot and a wliite post- 

 median dentate band. Hindwing Math ill-defined white median band, and beneath with wliite costal margin. 

 North and Central Europe, Italy with the exception of the South, and from South Russia to Turkestan. Egg 

 cylindrical, deposited in a spiral around thin twigs and covered with grey wool. Larvae gregarious until the 

 last moult in a bag-like, whitish grey web; greyish blue, clothed with greyish j^ellow and whitish hair, with 

 reddish yellow brushes of bristles as in rimicola, abdominal legs bright red. Until July on species of Prunus, 

 Hawthorn, Birch, Lime, Willow. Pp ochreous, soft-skinned, in a hard, smooth, brown or pale barrel-shaped 

 seuecta. cocoon. — The northern form, senecta Graes. (= borealis Car.) (24 h), from Finland, the Ural Mts., Hungary 

 and Eastern Siberia, is more slaty grey copiously mixed with white. The pupa hibernates twice. — The liigh- 

 arbwirulae. alpine arbusculae Frr. is characterised by the broader and more dentate band of the forewing and darker, more 

 blackish grey, distal marginal area of the (5. The larva of arbusculae is black, with glossy head and light 

 reddish brown hair, the back and sides being spotted with white; abdominal legs yellow. In the High Alps 

 until August on Salix arbuscula, Sorbus ariae, also on Alnus and Bctula. The pupa usually hibernates more than 

 once, 2 — 9 times. 



kuie-'ilris 



UCdlllllO- 



phylli. 



ncogena. 



E. acanthophylli <Uu\ (24 h). Body and wings light chocolate-brown; $ with dense whitish yellow 

 anal wool. Forewing with a dark-centred wliite basal spot and sharp white discal one; the white trans- 

 verse band also sharply defined, posteriorly widened into a spot and then strongly narrowed, curving basad be- 

 fore the liind margin and joining the basal spot; distal marginal area predominantly whitish grey. Hindwing 

 blackish brown, with indistinct Ught median band, Persia, in the high mountains. Larva gregarious, on Acan- 

 thophyllum, Acantholimon and Oxytropis; head black, dorsal hair dense, short, yellowish brown, incisions 

 black, at the sides a white interrupted line, venter lighter broM'n, stigmata V)ordered with black. Pupates on 

 the ground between clusters of the spiny food-plant in a barrel-shaped, ochreous, very thin cocoon. 



E. neogena F. d. W. (24 i). Similar to (icantophylU, blackish grey-brown. Patagia of ^ edged with 



