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Main Authors:	Barthélémy, Christophe, Terayama, Mamoru, Sin, Simon Yung Wa, Poon, Emily Shui Kei
Formato:	Recurso digital
Idioma:
Publicado:	Zenodo 2026
Subjects:	Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Tiphiidae Methocha Methocha haaksek
Acceso en liña:	https://doi.org/10.5281/zenodo.19203067
Tags:	Engadir etiqueta Sen Etiquetas, Sexa o primeiro en etiquetar este rexistro!

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Methocha haaksek Barthélémy & Terayama sp. nov.urn:lsid:zoobank.org:act: E85AD8EF-2B19-43C4-8CEA-721B5630BB2CFigs 5A, 6A, 7A, 8A, 9A, 10A, 11ADiagnosisFemales of this species can be distinguished from other Asian congeners by the following combination of characters: body entirely black; legs and antennae dark brown; head dorsally trapezoidal, with convex posterolateral margin; mandibles not distally narrowed; clypeus with rounded anterior margin; frontal tubercule reduced; ocelli forming a large equilateral triangle; pronotum, mesoscutellum, and propodeum largely smooth; tarsal claws with subapical tooth shorter than apical tooth. The male is unknown.EtymologyThe specific epithet refers to the transliteration of the Cantonese ideograms for the colour “black” (黑º) in reference to the black body of this species.Type materialHolotype CHINA – Hong Kong • &female;; Ping Shan Chai; 22 ° 29′14″ N, 114 ° 11′06″ E; 140 m a.s.l.; 7 Dec. 2019 – 4 Jan. 2020; C. Barthélémy leg.; Malaise trap; CASC, ref.: M459.D.Hy.1.Paratype CHINA – Hong Kong • 1 &female;; Lung Fu Shan; 22 ° 16′49″ N, 114 ° 08′18″ E; 143 m a.s.l.; 22–29 Apr. 2021; Andre Ibanez leg.; Malaise trap; CBC, ref.: 0732.E.Hy.1.DescriptionFemaleSTANDARD RATIOS (n = 2). L: 3.8–4.1 mm (mean = 3.95 mm); CR: 1.17–1.21 (mean = 1.19); OOR: 0.56– 0.82 (mean = 0.69); CLR: 0.37–0.60 (mean = 0.48); MER: 0.24–0.29 (mean = 0.26); OMR: 0.54–0.56 (mean = 0.55); FRR: 2.42–2.83 (mean = 2.63); MSR: 1.27–1.40 (mean = 1.33); PRR: 0.77–1.06 (mean = 0.92).HEAD (Figs 5A, 7A, 8A, 9A). Head wider than high in frontal view (mean CR = 1.19) width 2.1 × narrowest interocular distance; head trapezoidal dorsally (Fig. 8A), 1.4× as long as wide, with convex posterolateral margin; ocelli forming a large equilateral triangle (Fig. 8A), ocelli minute; frons, vertex and gena largely smooth, with sparse and minute punctures (Figs 5A, 7A, 8A); frontal tubercules much reduced (Fig. 8A), space lateral to tubercules coriaceous; frontal line absent; clypeus convex, anterior margin weakly rounded (Fig. 9A), sub-flat, anterior part coriaceous, posterior part minutely rugulose; mandibles not distally narrowed, lower tooth slightly longer than upper one; pedicel long, 0.7× length of FL1; FL1–FL 3 in a ratio of 6:7: 6 in length.MESOSOMA (Figs 10A, 11A). Collar of pronotum smooth in dorsal view (Fig. 11A); pronotal disc smooth bearing a few sparse and minute punctures (Fig 11A); mesonotum longer than pronotum (× 1.25); mesoscutum with concave dorsum in profile, mesoscutellum smooth, rounded in lateral view, not separated from mesepisternum; tegula absent; mesepisternum mostly smooth bearing a few minute punctures; metanotum with transverse ridges anteriorly (Fig. 10A), smooth posteriorly; propodeum globular, smooth (Figs 10A, 11A).METASOMA. Terga polished, bearing largely interspaced minute punctures, petiole rugose. Sterna polished bearing larger and widely spaced punctures.LEGS. Tarsal claws tridentate, apical tooth sharp, subapical tooth blunt nearly as long as apical one, basal tooth minute, triangular.COLOUR AND VESTITURE (Figs 5A, 6A). Body entirely black except legs and antennae dark brown (Figs 5A, 6A). Body bearing sparse long and erect white setae.RemarksWe were unable to extract viable DNA for analysis from our material; however, the clearly trapezoidal head (in dorsal view) distinguishes this species from the similar looking M. hongkongensis sp. nov.

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