308 RHEGI\L\TOPHILA; PTEROAU; PTEROSTOilA. By Dr. K. GRtJNBERG. 



30. Genus: ltlio$>'iiiat4»|>liiln Standfs. 



Nearest to Lophopteryx, with which it agrees in the contour of the wings and their rest-position. Eyes 

 strongly hain% ocelli absent. Antennae of both sexes pectinate to the apex, the branches much shorter in the 

 $ than in the ^. The crest of scales on the thorax is less sharply caruiiform than in Lophopteryx, more woolly 

 and hairy than scaled. The lobe of scales at the hind margin of the forewing absent. Forewing without areole, 

 veins 6 and 7 separate, from the cell. Hind tibia Avith four spurs. 



nlpina. R- alpina Bell. (47 g). ForeAAing bluish grey, ^viXh. dark basal spots from hind margin forming a kind 



of transverse band; pre- and postdiscal dentate bands whitish with black borders, the postdiscal one rather 

 far distal and parallel with the margin. HindAWng light brownish grey, Avith white postdiscal dentate band, 

 the outer area between it and the margin darkened. — In eastern South France (Digne), in 2 broods. May 

 and August — September. Egg semiglobular, at first uniformly dark green, later on violet withwhite polar spot 

 and white ring. Larva flattened and blue-green on underside, broadest in centre, somewhat tapering in front 

 and behind, the dorsum grey, underside coloured, with a more or less prominent reddish tone and irregular 

 longitudinal rows of whitish dots and streaks; segments 3 — 12 with 2 longitudinal rows of dark brown spots, 

 which are largest on 5 and 12. Spiracles white with black edges, placed in a dark stripe running from the head 

 to the anus. The tubercles are arranged in 3 longitudinal rows, but on segments 2 — 5 in 4 rows, and bear light 

 brown tufts of hair. On Poplar and some large-leaved species of Salix ; they feed at night and are concealed 

 in da\i:ime in narrow fissures in the bark. Pupation in a weak cell some fingers' width beneath the surface. 

 Pupa very hard, glossy dark brown, as in Lophopteryx, slightly conical with obtuse anal end. 



31. Genus: Pferoma Stgr. 



Antenna of (^ with long pectinations. Palpi short and thin. Thorax without distinct crest (perhaps 

 worn off in the only known specimen?), on the metathorax a short tuft of woolly hair. Abdomen smooth- 

 hairy, with very short tuft of hair. Forewing similar to that oi Lophopteryx in contour, with undulate distal margin 

 and at hind margin two widely separated lobes of scales. — • The markings of the only known species, from Central 

 Asia, completely deviates from the type found in the allied genera Spatalia and Lophopteryx. 



eugenia. P. eugenia Stgr. (46 f — copied from Staudixger's figure in the Iris; as this figure is hardly recognis- 



able, we bring another, from nature, on pi. 49 b). Forewing grey reddish brown, with a fawzi brown longi- 

 tudinal stripe in the basal half along the costal margin and another in front of the hind margm; the area bet- 

 ween these stripes occupied by a broad whitish streak from the base to beyond the cell; in the distal-marginal 

 area 2 further large whitish spots edged with fawn-brown ; pre- and postdiscal bands only represented by an inter- 

 rupted, feebly dentate double line with a wliite line in between; the two lobes of scales black-brown. Hindwiiig 

 blackish grey, with whitish fringes and a strongly obsolescent pale median stripe. — ^ Chinese Mongolia (Uliassutai). 



32. Genus: Pterostonia Germ. 



Antennae pectinate to the tip. the branches long in (^, short in ?. Palpi strongly prolonged, far pro- 

 jecting, as long as the thorax, and clothed with long hairs and scales iji dorso-ventral direction, therefore appear- 

 ing strongly compressed, with lanceolate end-segment. Eyes naked, ocelli absent. Proboscis feebly developed. 

 Thorax with long hair and scaling, and with a pointed erect crest of scales in the centre. Legs with long woolly 

 hair; hind tibia Avith mid- and end-.spurs. Abdomen with longer hair onh^ on the back, othei-wise smooth-hairy, 

 in ^ with long anal hair. Forewing very elongate, costal margin almost straight, apex very shai^p, distal margin 

 strongly oblique, evenly convex, and dentate, hind margin with a strong lobe of scales in the centre, beyond 

 it a shallow rounded sinus, and near the outer angle a second, smaller, lobe of scales; veins 6 and 7 separately 

 from upper cell-angle, 8, 9, 10 on a long stalk, the stalk anastomosing more or less distinctly with 7 in a 

 point, a long and narrow areole being formed. Hindwing semicircular, the apex rather pointed and the distal 

 margin slightly undulate; veins 6 and 7 stalked. — Larva naked, Noctuid-like, moderately flat and relatively 

 broad, with 16 feet, and 4 rows of granules commencing on the second thoracical segment, the tubercles of the 

 two lateral rows smaller than those of the middle rows, there being an additional similar row on each side on a 

 level Avith the spiracles. At rest the head is held horizontally forward, the frons being directed upwards. Pupa 

 cylindrical, Avith spinose anal end; in a cell in the ground lined A\'ith silk. 



pa'.pina. P. palpina L. (47 a). The specimens of the first brood larger, predominantly grey-broAA'n, those of 



the second brood smaller, light straw-colour. The transverse bands of the forcAving only indicated by black 

 vein-dots, the postdiscal band more complete than the other, being marked by double dots separated by Avhite 

 and placed in a shghtly darkened shadoAvy band ; all the veins more or less extended black ; the proximal lobe 

 of scales of the hind margin for the greater part black. HindAA'ing of the same ground-colour as the forcAvdng, 

 AA'ith lighter median band. — Distributed throughout Europe Avith the exception of Greece; in North- West 

 . Africa, northern Asia Mnor, and also in Amurland. Two broods in Central Europe, April— May and July— 



