Nesodiprion shinoharai Togashi, 1998

Hara, Hideho & Smith, David R., 2015, Japanese species of the sawfly genus Nesodiprion (Hymenoptera, Diprionidae), Zootaxa 4007 (4), pp. 481-508 : 505-506

publication ID	https://doi.org/ 10.11646/zootaxa.4007.4.2
publication LSID	lsid:zoobank.org:pub:6EEDD233-746F-4A04-84CD-565540676C60
DOI	https://doi.org/10.5281/zenodo.5669566
persistent identifier	https://treatment.plazi.org/id/643687C2-D844-FFAE-FF7B-F91EF568F86A
treatment provided by	Plazi
scientific name	Nesodiprion shinoharai Togashi, 1998
status

Treatment

Figs 4A–F View FIGURES 4 A – F , 6G–I View FIGURES 6 A – I , 7I –J View FIGURES 7 A – J , 8I –J View FIGURES 8 A – J , 9L View FIGURES 9 A – L , 10F View FIGURES 10 A – L , 11K–L View FIGURES 11 A – L , 12L–M View FIGURES 12 A – M , 13J–K View FIGURES 13 A – K , 14U–Y View FIGURES 14 A – Y , 15L–O, 16K–L, 17K–L, 18F

Nesodiprion shinoharai Togashi, 1998: 255 ; Taeger et al. 2010: 210; Hara & Smith 2012: 21, 22.

Additional description of female [condition of holotype in brackets]. Length 6.8–7.5 [7.5] mm. Shiny, without colored metallic reflections ( Figs 4A–D View FIGURES 4 A – F ). Labrum dark reddish brown or black [dark reddish brown]. Wings narrowly darkened apically; forewing with vein C basally slightly pale, section of vein R1 basal to stigma scarcely or distinctly pale [scarcely], and basal part of vein A pale.

Head with punctures small and predominantly separated on dorsal area, generally large and mostly contiguous on anterodorsal and ventral areas ( Figs 6G–H View FIGURES 6 A – I ); punctures on supraclypeal area and dorsal part of clypeus small and shallow; ventral part of clypeus and labrum nearly smooth. In thorax, punctures small, mostly shallow on mesoscutum, large, distinct and predominantly contiguous on mesoscutellum ( Fig. 9L View FIGURES 9 A – L ), and large, distinct and mostly contiguous or fused on dorsal part of mesepisternum ( Fig. 11K View FIGURES 11 A – L ). Dorsum of abdomen posteriorly punctured; first abdominal tergum not punctured as in Fig. 13K View FIGURES 13 A – K or medially narrowly punctured [not punctured], sometimes centrally with inconspicuous oblique striae [with striae] ( Fig. 13J View FIGURES 13 A – K ).

Distance between eyes 1.9–2.1 [2.0] × eye height. Postocellar area with width 1.4–1.7 [1.5] × length. Ratio of distances between eye and lateral ocellus, between lateral ocelli, and between lateral ocellus and posterior margin of head 1.0–1.3:1.0:1.0–1.1 [1.3:1.0:1.1]; ratio of distances between eye and lateral ocellus and between lateral ocellus and posterior margin of head 1.0–1.1:1.0 [1.1:1.0] ( Fig. 6G View FIGURES 6 A – I ). Distance between torulus and eye 1.2–1.3 [1.2] × distance between toruli. Malar space 1.0–1.6 [1.6] × width of median ocellus. Antenna with 23–24 [23] antennomeres; first flagellomere in lateral view with length along dorsal margin 1.4–1.6 [1.6] × apical breadth except for ramus and ramus in conspicuous or its length 0.2–0.6 [0.2] × length of flagellomere ( Figs 7I –J View FIGURES 7 A – J ). Anterior edge of mesoscutellum angled 100–120° [120°] ( Fig. 9L View FIGURES 9 A – L ). In hind leg, first tarsomere length 1.1–1.4 [1.4] × tibia breadth ( Fig. 12L View FIGURES 12 A – M ). In hind wing, section of vein 1A between crossveins a and cu-a 1.2–1.5 [1.5] × as long as width of cell 1A.

Ovipositor sheath as in Figs 14U–Y View FIGURES 14 A – Y . Lance (Figs 15L–N) abruptly narrowing from middle in dorsal and lateral views; small projection present behind posterior projection of processus articularis. Lancet (Figs 16K–L) with 12 annuli (apical annulus very small),with length from apex to ventral end of first (most basal) row of spines (ctenidium) 2.5 × maximum width; spines narrow; first row of spines nearly erect, with ventral end widely separated from ventral margin of lancet; serrulae of second and third annuli fused and appearing as large 4-dentate serrula; other serrulae small; serrulae of fourth and fifth annulus posteriorly angulated.

Description of male (hitherto undescribed). Length 5.8–6.0 mm ( Figs 4E–F View FIGURES 4 A – F ). As in female, but differing as follows except for usual sexual differences. Legs yellow, black on basal parts of coxae, orange on femora except for trochantelli and narrow apices, apices of fore and mid tibiae, apical fourth to third of hind tibia, apices of tarsi and spurs.

Distance between eyes 1.8–1.9 × eye height. Postocellar area with width 1.8–1.9 × length. Ratio of distances between eye and lateral ocellus, between lateral ocelli, and between lateral ocellus and posterior margin of head 0.9–1.0:1.0:0.8; ratio of distances between eye and lateral ocellus and between lateral ocellus and posterior margin of head 1.2:1.0 ( Fig. 6I View FIGURES 6 A – I ). Distance between torulus and eye 0.9–1.1 × distance between toruli. Antenna ( Fig. 4F View FIGURES 4 A – F ) with 26–27 antennomeres. In hind leg, first tarsomere length 1.6–1.7 × tibia breadth ( Fig. 12M View FIGURES 12 A – M ). In hind wing, section of vein 1A between crossveins a and cu-a 1.1 × width of cell 1A. Subgenital plate in ventral view with apical margin truncate ( Fig. 4F View FIGURES 4 A – F ).

Genital capsule (Figs 17K–L) wide in dorsal or ventral view. In ventral view, parapenis wide, apically rounded. Harpe in ventral view narrow, with medial margin nearly straight and apex nearly pointed. Valviceps in dorsal view narrow and straight, in lateral view ( Fig. 18F View FIGURES 18 A – F ) wide, with dorsal margin distinctly convex angularly near apex.

Material examined. Holotype ( Figs 4A–B View FIGURES 4 A – F ): ♀, “Mt. Ōtakiyama Nagano VII. 22. 1968 Coll. A. Shinohara” ( NSMT). Other material examined: JAPAN, HONSHU―Nagano Pref.: 1♀, Sakuho, Mugikusa-toge, coll. larva 11. IX. 2010, coc. 15. IX, em. 17. IV. 2011, host: Pinus koraiensis, H. Kojima ( USNM); 1♀ 1♂, Minamiaiki, Tateharakogen, coll. larva 11. IX. 2010, coc. 16–19. IX, em. 6–7. V. 2011, host: Pinus parviflora var. pentaphylla, H. Kojima ( NSMT); 1♀ 3♂, Komoro, Mt. Mizunoto-yama, coll. larva 19. IX. 2013, coc. 24–26. IX, em. 11. V.–17. VI. 2014, host: Pinus parviflora var. pentaphylla, H. Kojima ( NSMT).

Distribution. Japan: Honshu.

Host plants. Pinaceae : Pinus koraiensis Siebold et Zucc. , P. parviflora Siebold et Zucc. var. pentaphylla (Mayr) A. Henry (new record).

Life history. In mountainous regions in Honshu, one adult was collected in late July, and larvae were collected in mid-September. Larvae solitarily feed on needles (Kojima, personal communication, 2015).

Remarks. Nesodiprion shinoharai is easily distinguished from other congeners as in the key below.

Togashi (1998) stated that the oblique striae on the first abdominal tergum is an important specific character, but the tergum is faintly striate only in the holotype ( Fig. 13J View FIGURES 13 A – K ) and not striate in other specimens as in Fig. 13K View FIGURES 13 A – K .