Tijdschrift voor entomologie . Figs. 43—46. N. fuscescens. Fig. 43. Hypopygium, lateral view. Fig. 44. Extension of male tergite 9, dorsalview. Fig. 45. Left inner dististyle, from outside. Fig. 46. Male sternite 8, ventral view. Figs. 47—50. N. contras-ta. Fig. 47. Hypopygium, lateral view. Fig. 48. Extension of male tergite 9, dorsal view. Fig. 49. Left inner distis-tyle, from outside. Fig. 50. Male sternite 8, ventral view. pygium of this species is very similar to that offuscescens and contrasta and it is assumed thatthe same applies to the ovipositor). The species differ among each other
Tijdschrift voor entomologie . Figs. 43—46. N. fuscescens. Fig. 43. Hypopygium, lateral view. Fig. 44. Extension of male tergite 9, dorsalview. Fig. 45. Left inner dististyle, from outside. Fig. 46. Male sternite 8, ventral view. Figs. 47—50. N. contras-ta. Fig. 47. Hypopygium, lateral view. Fig. 48. Extension of male tergite 9, dorsal view. Fig. 49. Left inner distis-tyle, from outside. Fig. 50. Male sternite 8, ventral view. pygium of this species is very similar to that offuscescens and contrasta and it is assumed thatthe same applies to the ovipositor). The species differ among each other as fol- lows: in leeuweni the posterior part of the innerdististyle is enlarged and blackened (fig. 58) andthe broadly V-shaped extension of the male ter-gite 9 possesses robust lateral projections (fig. 254 Tijdschrift voor Entomologie, deel 127, afl. 11, 1984 (1985). 52 Figs. 51, 52. N. fuscescens. Fig. 51. Ovipositor, lateralview. Figs. 53, 54. N. contrasta. Fig. 53. Ovipositor,ventral view. 56); in juscescens the extension has a concavemedial incision (fig. 43); in contrasta the medialincision is convex (fig. 48); the inner dististyleo{ fuscescens has a high posterior crest (fig. 45);in contrasta the crest is low (fig. 49); further-more there are some differences in the ventralaspect of the male sternite 8 (figs. 46, 50); fe-males of fuscescens and contrasta differ in theshape of the short hypovalvae (figs. 51, 53, witha small dorsal notch before apex in fuscescens)and by the transition of sternite 8 and the hypo-valvae (figs. 52, 54). Distribution and period of flight. — Knownfrom southern Primorye and the Japanese is-lands Tsushima, Fionshu, Kyushu and Honshu the species is sympatric with con-trasta and leeuweni and known as far north asYuze, Akita. Altitudes are up to 1200 all Japanese records are in May, a few KALE
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectentomology, bookyear1
