Neurotoma, Konow, 1897

Shinohara, Akihiko, Choi, Jin-Kyung & Lee, Jong-Wook, 2018, The webspinning sawfly genus Neurotoma (Hymenoptera, Pamphiliidae) of South Korea: Neurotoma silla sp. nov. and a key to species, Zootaxa 4444 (5), pp. 593-599 : 595-596

Key to the South Korean species of Neurotoma

1. Head covered with long hairs; occipital carina blunt or inconspicuous............................................ 2

- Head glabrous or nearly so except for sparsely pilose gena and clypeus; occipital carina sharply defined................. 3

2. Abdomen without distinct bluish luster. Female: Clypeus with large creamy white mark medially; pronotum entirely black laterally. Male: Head entirely black...................................................... N. atrata Takeuchi, 1930

- Abdomen with distinct bluish luster dorsally. Female: Clypeus with two large lateral creamy white marks; pronotum in lateral view usually marked with yellowish white. Male: Head with large subtriangular mark on clypeus..................................................................................................... N. coreana Shinohara, 1980

3. Antenna with scape and pedicel usually entirely yellow in both sexes, at most with obscure blackish mark on upper side of scape.......................................................................... N. iridescens (André, 1882)

- Antenna with scape and pedicel mostly black in female, at least scape black dorsally in male.......................... 4

4. Head, thorax and abdomen richly marked with whitish yellow; facial and frontoclypeal crests prominent, sharply carinate..................................................................................... N. satoi Shinohara, 1980

- Head, thorax and abdomen with few pale-yellow marks; facial and frontoclypeal crests low, not sharply carinate.......... 5

- Large species, female 13 mm, male 12 mm. Head with large pale yellow mark between antennae in female ( Fig. 3 ), anterior surface mostly pale yellow in male ( Fig. 9 ); vertex and temple covered with dense, well-separated punctures ( Figs 3 , 9 ); mesoscutellum and metascutellum pale yellow in female ( Fig. 1 ); cell C of forewing glabrous, with some pilosity in apical posterior part ( Figs 14, 15 )..................................................................... N. silla sp. nov.

Figures

FIGURES 1–6. Neurotoma silla (holotype, female). 1, Habitus in dorsal view; 2, habitus in ventral view; 3, head in frontal view; 4, habitus in lateral view; 5, antenna, 6; ovipositor sheath. Scale bars: 1, 2, 4, 2 mm; 3, 0.5 mm; 5, 1 mm; 6, 0.2 mm.

FIGURES 7–13. Neurotoma silla (paratype, male). 7, Habitus in dorsal view; 8, habitus in ventral view; 9, head in frontal view; 10, apex of abdomen in dorsal view; 11, habitus in lateral view; 12, apex of abdomen in ventral view; 13, antenna. Scale bars: 7, 8, 11, 2 mm; 9, 13, 1 mm; 10, 12, 0.5 mm.

FIGURES 14, 15. Neurotoma silla, wings. 14, Female, holotype; 15, male, paratype. Scale bars: 2 mm.