Psyllaephagus enokicola Japoshvili, 2016

Japoshvili, George, Higashiura, Yoshimitsu & Kamitani, Satoshi, 2016, A review of Japanese Encyrtidae (Hymenoptera), with descriptions of new species, new records and comments on the types described by Japanese authors, Acta Entomologica Musei Nationalis Pragae 56 (1), pp. 345-401 : 385-388

Psyllaephagus enokicola Japoshvili , sp. nov.

( Figs 4, 7–8 , 31–37 )

Type material. HOLOTYPE: ♀, Nikkonarabu-cho, Kanuma-shi, ex Pachypsylla japonica on Celtis sinensis , 19.vi.2012, R. Sonobe lgt. ( ELKU). PARATYPES: 1 ♀, same data as holotype; 1 ♀, Aichi, Shitara, Uradani, Beech forest, trapped during 15.–21.viii.1994, T. Kanbe lgt.; 5 ♀♀, Hatsutani valley, Toyono, Osaka pref. ex P. japonica , 24.vi.1994, Y. Higashiura lgt.; 1 ♀ on slide, data as for holotype ( ELKU, 1 ♀ in EIAUG).

Diagnosis. Female (length about 2.00– 2.24mm) ( Figs 7–8 ). Head metallic green, mesosoma generally with metallic blue and golden reflection; antenna generally brown; all funicle segments longer than wide; pedicel almost as long as F 1; legs generally yellow, only basal 1/4 of midcoxa, basal 1/4 and whole of hind coxa brown; wings hyaline; scape about 3× as long as wide; pedicel about 2× as long as wide; F 1 about 2.5× as long as wide; F 6 subquadrate; only F 2 –F 6 with one line of longitudinal sensilla in the upper half of segment; frontovertex about 0.25× as wide as head; fore wing about 2.25× as long as wide; ovipositor exserted with exserted part 0.15–0.2× length of gaster.

Male. Unknown

Description. Female. Length of holotype excluding ovipositor 2 mm, length of exserted part of ovipositor almost 0.2× as long as gaster.

Head ( Fig. 4 ) metallic green with golden reflections and with very short, almost invisible, translucent white setae; antennal scrobes deep and with a blue and golden lustre; gena with a coppery golden-green lustre. Malar sulcus almost inconspicuous. Antenna with scape dark brown, funicle segments partly yellowish in some aspects. Palpi pale yellow. Pronotum, mesoscutum, axillae, scutellum and metanotum generally concolorous and with a metallic blue and golden lustre; apex of scutellum with a brighter greenish and golden lustre; mesopleuron with a bright green and golden lustre; gaster generally with a mixed coppery and golden lustre; tegula completely yellow; visible parts of gonostyli dark brown.

Head in frontal view ( Fig. 33 ) about 1.27× as wide as high; almost 3× as wide as FV; FV with fine, raised, regular, coriaceous granular sculpture, cells smaller than eye facet; face and temple with similar, but more elongate and very small reticulate/imbricate sculpture; gena with similar sculpture; ocellar angle about 110°; occipital margin sharp, carinate; eye reaching occipital margin; mesoscutum and scutellum with similar, small, regular polygonal, coriaceous sculpture, however sculpture on mesoscutum deeper and slightly different from that on scutellum, distance between toruli nearly1.4× distance between torulus and clypeal margin and 1.4× as long as distance between torulus and eye; mandible as in Fig. 34 ; only F 2 –F 6 with longitudinal sensilla arranged in a single apical row ( Fig. 36 ); head and mesosoma almost 1.36× as long as gaster (excluding exserted part of ovipositor); mid tibial spur ( Fig. 35 ) shorter than basitarsus; hypopygium extending about 2/5 along gaster; exserted part of ovipositor 0.2× as long as gaster; mesosoma as in Fig. 31 ; ovipositor as in Fig. 32 ; basal part of fore wing and venation as in Fig. 37 . Relative measurements: HW 40, FV 13, FVL 17, OD 3, OOL 1, OCL 1.5, AOL 5, POL 8, SL 19, SW 7, MS 11, EL 24, EW 16, ScL 21, ML 24, WS 22, FWL 115, FWW 50.

Relative measurements of paratype: OL 49, GL 12, MT 29.

Differential diagnosis. The new species is by its habitus and morphology very close to Psyllaephagus syntomozae , but can be separated using the characters given in Table 5.

Etymology. The species name enokicola is composed of the Japanese name enoki, which is the tree Celtis sinensis , and also occurs in the Japanese name of Pachypsylla japonica (enoki-kaigara-kijirami) living on it, and the Latin ending - cola meaning “inhabitant of”. Noun in apposition.

Distribution. Japan: Honshu (new record). Endemic.

Figures

Figs 1–10. 1–2 – Aphidencyrtoides tachikawai Japoshvili sp. nov., female, body. 3, 5–6 – Leptomastix teii Japoshvili sp. nov., female: 3 – head; 5–6 – body. 4, 7–8 – Psyllaephagus enokicola Japoshvili sp. nov., female: 4 – head; 7–8 – body. 9–10 – Psyllaephagus kamitanii Japoshvili sp. nov., female, body.

Figs.30–43.30 – Leptomastix teii Japoshvili sp. nov., female, mesosoma.31–37 – Psyllaephagus enokicola Japoshvili sp. nov., female: 31 – mesosoma; 32 – ovipositor; 33 – head; 34 – mandible; 35 – mid tarsus; 36 – antenna; 37 – fore wing. 38–43 – Psyllaephagus kamitanii Japoshvili sp. nov., female: 38 – mesosoma; 39 – mid tarsus; 40 – antennae; 41 – head; 42 – fore wing; 43 – mandible.