Torymus macrops Matsuo 2020, n. sp.
Creators: name: Matsuo, Kazunori
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Torymidae
Torymus
Torymus macrops

description: Torymus macrops Matsuo n. sp.
Figs 2c, 6c, 14 a–d, 24g
Etymology. The specific name, macrops, is Latin meaning “large eye”, in reference to the size of the compound eye of female of this species.
Type material. Holotype: ♀ (BLKU), emerged on 24–29 April 2007 from a gall of Mikiola glandaria on Fagus crenata collected by S. Sato and K. Matsuo on 30 March 2007 from Mt. Takanosu, Akitakada, Hiroshima, Japan. Paratype: 1 ♀, same data as the holotype (BLKU).
Description. Female. Body length excluding ovipositor sheath 2.7–3.3 mm. Head dark green with violet reflection. Scape yellow; pedicel black, yellowish basally; all flagellomeres black. Mesosoma dark green with violet reflection. Fore wing with an infumate streak. Legs yellow; claws brown. Metasoma dark green with violet reflection, with basal part yellowish (Fig. 2c).
Head 2.0–2.2× as wide as long in dorsal view; temple narrow, 0.01–0.03× as long as dorsal length of eye; POL 1.7–1.9× OOL; OOL 1.0–1.1× OD. Head 1.2–1.3× as wide as high in frontal view (Fig. 14a); eyes separated by 0.7–0.8× their height; malar space narrow, 0.1–0.2× height of eye; mouth 3.1–3.5× malar space; gena straight; clyp- eus with apical margin slightly produced, truncate medially. Antenna not clearly clavate (Fig. 6c); scape 0.6–0.7× as long as height of eye, just reaching ventral margin of anterior ocellus; combined length of pedicel and flagellum 1.3× width of head; pedicel about twice× as long as wide; anellus quadrate; F1 1.4–1.5× as long as wide, shorter than pedicel; F2–F4 1.5–1.6× longer than wide; F5 1.2–1.3× longer than wide; F6 1.0–1.1× longer than wide; F7 quadrate; each funicular segment bearing longitudinal sensilla arranged in two rows; C3 with a small tuft of micropilosity beneath.
Mesosoma 1.5–1.7× as long as wide; mesoscutum (Fig. 14b) with large piliferous punctures; notaulus shallow; scutellum (Fig. 14c) 1.2–1.3× as long as wide, with large piliferous punctures; dorsellum without median carina; propodeum (Fig. 14d) reticulate; lower mesepimeron 1.2–1.3× as long as wide. Fore wing (Fig. 24g) 2.6–2.8× as long as wide; costal cell 11.0–13.0× as long as wide, on upper surface with a setal row in distal half, on lower surface with a complete setal row and scattered setae; basal cell closed, hairy; cubital setal line present; basal setal line present; speculum closed below, narrow; relative lengths of marginal vein: postmarginal vein: stigmal vein=9.3: 2.4: 1.0. Hind coxa 1.8–2.0× as long as wide, with dorsal carina basally; dorsal surface of hind coxa bare in basal half; hind femur 3.9–4.3× as long as wide; hind tibia with longer spur 0.9–1.1× as long as width of hind tibia, 0.3–0.4× length of basitarsus; shorter spur 0.6–0.7× length of longer spur.
Metasoma as long as mesosoma; posterior margin of metasomal tergum five incised; tip of hypopygium situated at 0.6 length of metasoma, with short setae; ovipositor sheath as long as metasoma plus three–fourths of mesosoma, 2.6× as long as hind tibia.
Male. Unknown.
Distribution. Japan (Honshu).
Host information. Torymus macrops is an ectoparasitoid of Mikiola glandaria Sato and Yukawa (Diptera: Cecidomyiidae) that induces galls on Fagus crenata Blume (Fagaceae) (gall photo: C–166 of Yukawa & Masuda 1996).
Remarks. Females of T. macrops are similar to T. fagineus Graham, a European species (Graham & Gijswijt 1998), by having the following characters: antenna slender; dorsellum without median carina; propodeum reticulate; fore wing with an infumate streak; costal cell on upper surface with a setal row in distal half, on lower surface with a complete setal row and scattered setae; basal cell closed, hairy; speculum closed below; hind coxa with dorsal carina basally; dorsal surface of hind coxa bare in basal half; posterior margin of metasomal tergum five incised; ovipositor sheath as long as metasoma plus three–fourths of mesosoma. However, females of T. macrops can be distinguished from T. fagineus by having the following features: temple narrow, 0.01–0.03× as long as dorsal length of eye (0.05–0.13× in T. fagineus); POL 1.7–1.9 OOL (2.3–2.7 in T. fagineus); scape just reaching ventral margin of anterior ocellus (reaching distinctly above vertex in T. fagineus); each funicular segment bearing longitudinal sensilla arranged in two rows (F1 with a row of sensilla in T. fagineus); hind coxa 1.8–2.0× as long as wide (about 3.0× as long as wide in T. fagineus).
description: Published as part of Matsuo, Kazunori, 2020, A revision of Japanese Torymus Dalman (Hymenoptera: Torymidae), pp. 401-441 in Zootaxa 4758 (3) on pages 422-423, DOI: 10.11646/zootaxa.4758.3.1, http://zenodo.org/record/3734584