. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. ON THE OSMYLIN^E OF JAPAN. Plethosmylus hyalinatus Krüger, Stett. Ent. Zeit., 74 Jg., p. 274 Head bright yellow without marking ; mouth-parts and clypeus somewhat darker ; ocelli minute and placed very close together ; antennae black. Prothorax blackish, variegated with yellow ; above three some- what yellowish longitudinal lines, of which the median is the broadest. Meso- and metathorax fuscous black with pale hairs. Legs pale yellow ; tarsal joints suffused with fuscous ; claws commonly serrate internally, rarely without the ser


. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. ON THE OSMYLIN^E OF JAPAN. Plethosmylus hyalinatus Krüger, Stett. Ent. Zeit., 74 Jg., p. 274 Head bright yellow without marking ; mouth-parts and clypeus somewhat darker ; ocelli minute and placed very close together ; antennae black. Prothorax blackish, variegated with yellow ; above three some- what yellowish longitudinal lines, of which the median is the broadest. Meso- and metathorax fuscous black with pale hairs. Legs pale yellow ; tarsal joints suffused with fuscous ; claws commonly serrate internally, rarely without the serration ; coxa I has a rather long spur which is however not so long as in O. maculatus of Europe. Abdomen blackish with pale hairs, yellowish at apex. The boat- shaped organ depending from the last abd. segment in the female yellowish, more or less darker along the margin. spots. Neuration mostly blackish or fuscous ; subcosta and radius yellowish, though sometimes pale or dark greyish. Most costal cross-veins are furcate, except several basal ones, which are simple ; here and there two adjoining furcate veins cross each other or are united by a short cross-vein ; radial sector with 10-14 branches; two series of gradate veinlets complete and nearly parallel. Hindwing hyaline, with brownish pterostigma. (1913).. Fig. 8. Coxa I of Osmylus hynlinatus M'L. 20 x. Forewing broad, subacute at apex, hyaline with a grey tinge ; commonly without spot, sometimes with a small discal spot and some more spots near apex ; outer series of gradate veinlets often narrowly margined with faint fuscous ; inner marginal area occasionally clouded. Pterostigma with some dark fuscous. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nihon Do?butsu Gakkai; To?kyo? Do?butsu Gakkai. Tokyo : Societas


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