Foenatopus flavidentatus (Enderlein, 1913)

Hong, Chun-dan, van Achterberg, Cornelis & Xu, Zai-fu, 2011, A revision of the Chinese Stephanidae (Hymenoptera, Stephanoidea), ZooKeys 110, pp. 1-108 : 20-22

Foenatopus flavidentatus (Enderlein, 1913) Figs 115157

Diastephanus flavidentatus Enderlein 1913: 204; Elliott 1922: 801, 809; Huflejt 1996: 97.

Foenatopus flavidentatus Baltazar 1966: 20; Belokobylskij 1995: 21; Aguiar 2004: 25.

Diastephanus simillimus Elliott 1920: 82, Elliott 1922: 802, 823. syn. n. Foenatopus simillimus Aguiar 2004: 36. Diastephanus trilineatus Elliott 1920: 81; Elliott 1922: 801, 813. syn. n. Foenatopus trilineatus Aguiar 2004: 38.

Type material.

Lectotype of Foenatopus flavidentatus , ♀ (SDEI): "[CHINA], Formosa, Kankau (Koshun), H. Sauter, vi. 1912", " Diastephanus flavidentatus TypeEnderlein. ♀ Dr. Enderlein det. 1913", "Lectotypus Diastephanus flavidentatus des. Belokobylskij 92", "Coll. DEI Eberswalde", "OSUC 0021645". Paralectotype, 1 ♀ (SDEI): "Formosa, Taihorin, H. Sauter, 1911", "7. VII.", " Diastephanus flavidentatus TypeEnderlein. ♀ Dr. Enderlein det. 1913", "Paralectotypus Diastephanus flavidentatus Enderlein des. Belokobylskij 92", "Coll. DEI Eberswalde", "OSUC 0021646".

Holotype of Foenatopus simillimus (BMNH): “Type”, "B.M. Type Hym., 3.a.19", "B.M. Type Diastephanus simillimus ( Elliott 1920)", " Diastephanus similis [sic!] E.A. Elliott, 17.xii.1919", "[Vietnam], Tonkin: Hoabinh, Aug. 1918, R.V. de Salvaza", "Indo China, R.V. de Salvaza, 1919 –25”.

Lectotype of Foenatopus trilineatus here designated, ♀ (BMNH): “Type”, "B.M. Type Hym., 3.a.3", " Diastephanus trilineatus E.A. Elliott, 17.xii.1919", "[Vietnam], Tonkin: Hoabinh, Aug.1918, R.V. de Salvaza", "Indo China, R.V. de Salvaza, 1919 –25”.

Other material.

8 ♀ + 2 ♂ (HNHM): 1 ♀, "Taihorinsho, x.1909"; 1 ♀, id., but “xi.1909”, 3 ♀, id., but “ix.1909”; 1 ♂, id., but “viii.1909”; 1 ♀ + 1 ♂, "Kosempo, x.1909"; 1 ♀, id., but “ii.1908”; 1 ♀, "Teraso, v.1909"; 1 ♀ (RMNH): 1 ♀, CHINA: Guangdong, Mt. Nankunshan, 20.viii.2005, Zai-fu Xu, No. 200800169; 4 ♀ (SCAU): 1 ♀, CHINA: Hong Kong, Kowloon, 10.x.2006, No. 200800172; 1 ♀, CHINA: Guangdong, Guangzhou, Tianlu Lake, 24.vi.2003, Jing-xian Liu, No. 200800164; 1 ♀, CHINA: Guangdong, Mt. Nankunshan, 20.viii.2005, Zai-fu Xu, No. 200800168; 1 ♀, CHINA: Guangdong, Liuxihe, 12.vi.2008, Zai-fu Xu, No. 200800181.

Diagnosis.

Vertex transversely striate (Figs 131, 146, 154); middle pale stripe of frons comparatively wide dorsally (Figs 124, 133, 148, 156; both sexes, but sometimes less in male) and base of anterior tooth of corona yellowish brown; pronotum often yellowish brown or dark brown posteriorly and usually contrasting with black mesoscutum (Figs 127, 151); pterostigma long and narrow, more or less subparallel-sided, apically acute (Figs 125, 140, 149); vein 2-CU1 of fore wing absent or weakly developed; vein r of fore wing somewhat less oblique (Figs 125, 140, 149); hind femur with 2 large teeth ventrally, teeth completely to partly pale yellowish or ivory (Figs 129, 143, 152); pygidial impression of female deep and reverse V-shaped; ovipositor sheath with ivory or pale yellowish subapical band (Figs 130, 144, 153).

Description.

Redescribed after the lectotype from Taiwan, female, length of body 15.6 mm, of fore wing 7.3 mm, and of ovipositor sheath 14.2 mm.

Head. Antenna with flagellomeres partly missing; frons finely transversely striate (Fig. 133); coronal teeth distinctly carinate and acute apically; vertex (Fig. 131) with three short transverse carinae between posterior ocelli, followed by finely transversely striate area; temple with striae from vertex, but ventrally smooth; temple smooth and shiny, narrowly rounded behind eye (Fig. 132).

Mesosoma. Neck (Figs 126, 127) comparatively robust and with several weak spaced carinae; pronotum largely coriaceous and somewhat microreticulate, posteriorly narrowly smooth; mesoscutum coriaceous and posteriorly largely irregularly foveolate-rugose; scutellum smooth and shiny, weakly rugulose, laterally sparsely with medium-sized foveolae (Fig. 128); mesopleuron largely coriaceous and with some small punctures, anterior fourth densely whitish setose; convex part of metapleuron densely foveolate, ventrally with spaced carinae; propodeum shallowly reticulate-foveolate and with coriaceous interspaces (Fig. 128).

Wings. Fore wing (Fig. 125): hyaline, vein 2-Cu1 indistinctly developed, 0.1 times as long as vein cu-a; pterostigma elongate and acute apically, twice as long as vein r and 14.8 times long as its maximum width; vein r and vein SR1 obtuse-angled, vein r ends 0.2 times length of pterostigma behind level of apex of pterostigma; vein SR1 subparallel to costal margin.

Legs. Hind coxa finely transversely spaced striate, basally rugose; hind femur swollen and finely microreticulate, ventrally with two large acute teeth and with one acute smaller denticle basally (Fig. 129); hind tibia coriaceous, 1.2 times as long as hind femur, basal narrow part of hind tibia 1.4 times as long as widened part, inner side of widened part basally distinctly depressed, followed by convex and setose area, apically densely setose; basitarsus parallel-sided and ventrally densely setose.

Metasoma. First tergite finely densely aciculate, first tergite 10.8 times as long as its maximum width, 2.3 times as second tergite and 0.8 times as remainder of tergites; second tergite basally weakly rugose, remainder largely smooth and shiny; pygidial area medially slightly convex and smooth; pygidial impression deep and reverse V-shaped; length of ovipositor sheath 0.9 times as long as body length, length of subapical yellowish band 2.6 times length of dark apex (Fig. 130).

Colour.Largely brownish or blackish; frons with three longitudinal yellowish streaks; vertex and pronotum reddish brown; scutellum and propodeum blackish; hind femur chestnut brown and with two large ventral teeth yellowish; ovipositor sheath with subapical yellowish band.

Variation. Female: length of body 11.0-15.8 mm, and of fore wing 6.0-8.2 mm.

Distribution.

Oriental China (Taiwan); Vietnam.