Orthostigma (Patrisaspilota) ketambeense ( Fischer 2004 )

Peris-Felipo, Francisco Javier, Stigenberg, Julia, Quicke, Donald L. J. & Belokobylskij, Sergey A., 2019, Revision of the Oriental subgenus Patrisaspilota Fischer, 1995 (Hymenoptera: Braconidae: Alysiinae: Orthostigma Ratzeburg, 1844) with description of a new species from Papua New Guinea, Zootaxa 4629 (3), pp. 365-378 : 371-374

Orthostigma (Patrisaspilota) ketambeense ( Fischer 2004)

(Figs 5, 6)

Patrisaspilota ketambeensis Fischer 2004: 78 .

Orthostigma (Patrisaspilota) ketambeense: Yu et al. 2016 .

Type material. Holotype: male, Indonesia, Sumatra, Aceh Gunung Leuser Nat. Pk. Ketambe Res. Sta., 1–30. Nov.

Head. In dorsal view, 2.2× as wide as long, 1.4× as wide as mesoscutum, smooth, with temple rounded behind eyes. Eye in lateral view 1.6× as high as wide and 2.4× as wide as temple medially. POL 1.0× OD; OOL 3.0× OD. Face 1.6× as wide as high, entirely densely setose with dense and distinct punctation; inner margins of eyes subparallel. Clypeus 2.7× as wide as high, slightly concave ventrally. Paraclypeal fovea small, not reaching half distance between clypeus and inner border of eye. Mandible almost parallel-sided, 1.5× as long as its maximum width; its middle tooth wide, rather long, directed forwards, lower tooth not evenly curved, lobe-shaped. Antenna 24-segmented. Scape 2.1× as long as pedicel. First flagellomere 3.9× as long as its maximum width, 1.4× as long as second flagellomere. Second to sixth flagellomeres 2.2–2.5×, seventh to 19th flagellomeres 2.0×, and 20th (apical) flagellomere 2.7× as long as their maximum width.

Mesosoma . In lateral view about as long as high. Mesoscutum (dorsal view) 0.8× as long as its maximum width, smooth, densely setose on median lobe. Notaulus rather narrow, present on horizontal surface of mesoscutum reaching the half part of mesoscutum, reaching mesoscutal pit. Mesoscutal pit present, wide, short, oval, smooth, 1.2× as long as its maximum width. Prescutellar depression (scutellar sulcus) smooth, with median carinae, 1.4× as long as its maximum width. Precoxal sulcus wide, oblique, hardly crenulated, not reaching anterior and posterior margins of mesopleuron. Posterior mesopleural furrow crenulate below. Propodeum rugulose, almost smooth anteriorly, with pentagonal areola distinctly delineated by carinae. Propodeal spiracles very small, its diameter 0.2× as large as distance from spiracle to anterior margin of propodeum.

Wings. Length of fore wing 2.9× its maximum width. Marginal cell ending on apex of wing, 4.0× as long as its maximum width. Vein 3-SR 2.1× as long as vein 2-SR. Vein SR1 2.1× as long as vein 3-SR. Vein r longer than pterostigma width. First subdiscal cell 2.1× as long as its maximum width. Hind wing 4.3× as long as its maximum width.

Legs. Hind femur 3.5× as long as its maximum width. Hind tibia widened to apex, 7.3× as long as its maximum subapical width, 1.2× as long as hind tarsus. First tarsomere of hind tarsus 2.0× as long as second tarsomere.

Metasoma. First tergite evenly widened towards apex, 1.4× as long as its apical width, striate with rugulosity between carinae.

Colour. Body, flagellar segments of antenna and pterostigma dark brown to black. Mandible, and legs yellow. First metasomal tergite similar colour to second and third tergites. Wings almost hyaline.

Length. Body 2.0 mm, fore wing 1.8 mm, hind wing 1.4 mm.

Female. Unknown.

Comparative diagnosis. This species is similar to O. (P.) multicarinatum Tobias 1990 ( Sri Lanka and Vietnam), but differs from it in having the eye in lateral view 2.4× as wide as temple medially (1.3× in O. (P.) multicarinatum ), first flagellomere 3.9× as long as its maximum width (2.5–2.8× in O. (P.) multicarinatum ), vein 3-SR 2.1× as long as vein 2-SR (1.6–1.7× in O. (P.) multicarinatum ), vein SR1 2.1× as long as vein 3-SR (2.5–2.6× in O. (P.) multicarinatum ), hind femur 3.5× as long as its maximum width (4.1× in O. (P.) multicarinatum ), head in dorsal view 2.2× as wide as long (1.8× in O. (P.) multicarinatum ), and face distinctly densely setose and punctate (mainly glabrous and smooth in O. (P.) multicarinatum ).

Distribution. Indonesia (Sumatra).