Nesodiprion niger Togashi, 2001

Figs 1J–K, 5F, 7C–D, 9D, 10B, 11D, 12E, 13D, 14H–I, 15E–F, 16D

Nesodiprion nigrum [sic] Togashi, 2001: 913.

Nesodiprion niger: Taeger et al. 2010: 210; Hara & Smith 2012: 21, 22.

Additional description of female (holotype). Shiny, without metallic reflections (Figs 1J–K). Palpi dark to black brown. Legs black, brown on apex of fore femur, yellow on fore tibia except for narrow apex brown, narrow bases of first tarsomeres and tibial spurs.

Head and thorax with punctures shallow and ill defined, partly well defined (Figs 5F, 9D); punctures on dorsal part of mesepisternum mostly fused (Fig. 11D).

Distance between eyes 2.1 × eye height. Distance between eye and lateral ocellus 1.5 × distance between lateral ocellus and posterior margin of head. First flagellomere in lateral view (Fig. 7C) with length along dorsal margin 1.3 × apical breadth except for ramus and ramus length 0.5 × its flagellomere length. Anterior edge of mesoscutellum angled about 120° (Fig. 9D). In hind leg, first tarsomere length 1.2 × tibia breadth (Fig. 12E). In hind wing, section of vein 1A between crossveins a and cu-a 1.1 × as long as width of cell 1A.

Lance as in Figs 15E–F (base of lance laterally broken and condition of posterior projection of processus articularis unknown). Lancet (Fig. 16D) very slightly concave on ventral margin in outline, with length from apex to ventral end of first (most basal) row of spines (ctenidium) 3.5 × maximum width and apex narrowly rounded; first row of spines oblique, and its ventral end narrowly separated from ventral margin of lancet; first annulus without serrula; all serrulae posteriorly angulated; distance between serrulae of second and third annuli (d) about 4 × length of serrula of second annulus (s) (for d and s, see Fig. 16A).

Material examined. Holotype (Figs 1J–K): ♀, “Tokusawa Kamikochi. Nagano 5-6. VII. 1989 A. Shinohara” (NSMT).

Distribution. Japan: Honshu.

Remarks. The female of N. niger is easily distinguished from those of other congeners by the almost entirely black middle and hind legs (Fig. 1K) and the biserrate flagellum (Figs 7C–D).