184 NOTHOPTERYX. By L. B. Prout. 



exportata. N. exportata Stgr. is unknown to me. If it is related in structure to volitans expressata, with whieli 



its author compares it, it must be removed to Trichopterigia, but no information on this question is given. 

 Wings slightly narrower and more elongate than in volitans, the greenish tone entirely wanting. Forewing dirty 

 dark grey with lighter and darker lines, the veins mostly dark, here and there' spotted with white; median 

 band broad but not distinct, being comparatively little darkened, while its central part remains nearly of the 

 ground-colour; proximal margin of the band carved, without the projecting tooth near the hindmargin which 

 characterizes volitans; on the costa near the apex slands a triangular darker spot; pale sub terminal line broken 

 into spots, little developed; a dark terminal scries of double dots. Hindwing light grey, showing traces near 

 the distal margin (especially in the ?) of a darker line. Underside glossy grey, the forewing in the ? with 

 a light band in the distal part. Askold and the Sutschan district, Ussnri. Possibly related to grisearia. 



grtscaria. 



N. grisearia Leech (lie). Nearly related to carpinata and hemana. It has the same whitish ground- 

 colour but the lines of the forewing (which are numerous and rather well expressed) are of a browner tone, 

 with a tinge of olive; occasionally they are pretty evenly distributed over the wing, but usually in the median 

 area Ihey are condensed into a narrow proximal and broader distal band, the intermediate space remaining 

 clear; outer area marked with series of roundish white spots, the third of which forms the subterminal line; 

 between the subterminal and the margin the veins are rather strongly darkened, at least in the anterior half 

 of the wing. Hindwing whitish grey with traces of a postmedian line or series of vein-dots. Under surface, 

 especially of forewing, rather more smoky, very weakly marked. Japan. 



carpinata. N. carpinata Bkh. (^ lobulata Hbn. = costaestrigata Haw. = dentistrigata Haw. = rupestrata Steph. 



nee Schiff) (6 f, cf; 6g. ?). Ground-colour whitish grey, in freshly emerged specimens with a very delicate 



green tinge; the markings somewhat darker brownish grey, but generally quite weakly expressed. Hindwing 



whitish, greyer distally, sometimes with one or two fairly well-defined grey lines not far from the distal 



fasciata. margin, c^ narrower-winged than ?. — In ab, fasciata Front the two central bands are very much darker, 



ohseurata. sometimes quite deep fuscous, giving the effect of a different species. Frequent in Perthshire. — obscurata 

 Sp. Schneid., described as a local race in Norway, is perhaps transitional towards ab. fasciata, as the bands 

 and lines are said to be more distinct; the ground-colour, however, is also darkened, which is not the case 



unifasciata. with fasciata. — ab. unifasciata Bhl. is a development of ab. fasciata in which the two bands coalesce in 

 their posterior part, leaving only a pale central part anteriorly, as in polijcomniata. — Larva of moderate length, 

 rather flattened; head small; thorax and first abdominal segment with a slight lateral enlargement; colour 

 green, with a bright yellow spiracular stripe; anal points yellow. On sallow, birch, etc. in May and June. 

 Pupa rather glossy, finely sculptured, wings smooth; colour red-brown. Hibernates in a small oval earth- 

 mingled cocoon on the ground. The moth appears in April and sits on tree-trunks by day. Distributed and 

 often common in Central and Northern Europe, Siberia and the Hi district. 



qerminata. N. germinata Pilng. Unknown to me and the neuration not described, but as the shape and structure 



are said to agree with carpinata it probably belongs to this genus. Rather smaller than carpinata. Forewing 

 ash-grey with bent or angled subbasal brownish line, a second line similar, a narrow curved antemedian band, 

 the discal mark elongate, forming a very sharply expressed, somewhat wavy black streak, postmedian narrow 

 band strongly excurved round the cell-streak, slightly incurved in its posterior half, marked with black at the 

 base of the 3"^ radial and P' median veins, 3 fine outer lines parallel to the postmedian, veins with blackish 

 dashes towards their extremity. Hindwing light grey, in the distal part with 2 indistinct lines. Forewing 

 beneath brownish grey, hindwing pale grey, both with elongate discal mark, hindwing with the 2 dark lines 

 more distinct than above. Koko-Nor, described from a ?. 



hemana. N. hemana Btlr. (^ insonlata Chr.) (6 g). Considerably smaller than carpinata, rather whiter, the lines 



of the median area curved outward at the posterior margin, terminating in two distinct reddish-brown spots 

 placed at about one-half and three-fourths the length of the margin. These spots also distinguish hemana from 

 grisearia, from which it further differs in the finer, clearer grey (not olive-brownish) lines, etc. Our figure is 

 coloured too brown. Eastern Siberia and Japan. Staudinger (Iris vol. 10, p. 73) evidently received the wrong 

 species as hemana. 



terranea. N. terranea Btlr. (12 c) slightly recalls in its coloration some dark specimens of jjo^ycomwato and the shape 



of the distal margin of the central band also resembles that of the species named ; terranea, however, is very 

 much smaller, duller, the costal part of the band only indistinctly pale in its centre, the proximal edge of the 

 band very much straighter, etc. The ground-colour is dark greyish, the hindwing nearly as dark as in sahi- 

 nata, the band dark reddish-brown or blackish-brown. Both in this and the following species, but perhaps 

 especially in the latter, the costal vein of the hindwing is further removed from the subcostal than in most 

 of the genus. Japan (Yokohama, etc.). 



