Taeniogonalos subtruncata, Chen, Hua-yan, van Achterberg, Cornelis, He, Jun-hua & Xu, Zai-fu, 2014

Chen, Hua-yan, van Achterberg, Cornelis, He, Jun-hua & Xu, Zai-fu, 2014, A revision of the Chinese Trigonalyidae (Hymenoptera, Trigonalyoidea), ZooKeys 385, pp. 1-207 : 110-113

Taeniogonalos subtruncata nom. n. Figs 496-517

Nanogonalos flavocincta Teranishi, 1929: 140; Weinstein and Austin 1991: 421.

Poecilogonalos flavocincta ; Marshakov 1981: 107; Lelej 1995: 14. Synonymized with Nanogonalos mongolicus by Marshakov 1981.

Taeniogonalos flavocincta ; Carmean and Kimsey 1998: 67 [not Taeniogonalos flavicincta (Bischoff, 1913)].

Type material.

Holotype, ♂ (OMNH), "Corea, Suigen, V.1928, C.P. Clausen", "Holotype Nanogonalos flavicincta [sic!]".

Additional material.

1 ♀ (IZCAS) "[China:] Shaanxi, Zhenping, 21.VII.1983, IOZ(E)1495446".

Diagnosis.

Supra-antennal elevations 0.4-0.5 times as long as scapus and outer side of elevations oblique, largely smooth (except for sparse punctures) and apically brown (Figs 498, 509); tyloids of male antenna linear; occipital carina distinctly lamelliform, moderately widened (about 0.5 times as wide as diameter of ocellus) and smooth medio-dorsally (Fig. 498); head posteriorly with two small ivory spots (Fig. 509; female) or entirely black (male); head dorsally coarsely reticulate-punctate and largely without distinct smooth interspaces (Figs 498, 509); mesosoma black dorsally except for ivory patch(es) on metanotum medially (Fig. 501); mesoscutum and scutellum coarsely punctate-reticulate (Fig. 501); scutellum entirely black (Fig. 501); anterior half of fore wing dark brown (Fig. 506); third submarginal cell of fore wing nearly as long as second submarginal cell (Fig. 506); first discal cell of fore wing comparatively elongate (Fig. 506); metasoma coarsely punctate (Fig. 503), with wide band at apex of second tergite and sternite, and fourth-sixth tergites largely orange or yellowish and remainder of metasoma black (Fig. 503); first tergite about half as long as its apical width; protuberance of second sternite of female subtruncate medio-apically and in lateral view curved and rounded apically (Figs 516, 517); second sternite of male distinctly shallowly depressed medio-posteriorly (Fig. 505); third sternite of male flat medially; third sternite 0.3-0.4 times as long as second sternite.

Description.

Female from Shaanxi, length of body 12.4 mm (of fore wing 9.8 mm).

Head. Antenna with 25 segments; frons, vertex and temple coarsely reticulate-punctate (Figs 508, 509, 512); head gradually narrowed behind eyes, eye in dorsal view 0.7 times as long as temple (Fig. 509); occipital carina narrowly lamelliform and smooth medio-dorsally; supra-antennal elevations medium-sized (about 0.4 times as long as scapus), outer side oblique and largely smooth except for sparse punctures; clypeus slightly concave and thick medio-ventrally.

Mesosoma. Length of mesosoma 1.5 times its height (Fig. 514); mesopleuron coarsely reticulate-punctate anteriorly, transversely rugulose posteriorly; transverse mesopleural groove narrow, deep and moderately crenulate; notauli narrow, deep and finely crenulate; mesoscutum coarsely reticulate-punctate (Fig. 513); scutellar sulcus complete, medium-sized and crenulate medially and wider laterally; scutellum coarsely reticulate-punctate, convex medially and anteriorly slightly above level of mesoscutum; metanotum medially slightly convex, not protruding and rugose (Fig. 513); propodeum coarsely rugose (Fig. 513); posterior propodeal carina thick lamelliform and strongly arched, foramen medially 0.4 times higher than wide basally.

Wings. Fore wing: length of vein 1-M 1.8 times as long as vein 1-SR (Fig. 511).

Metasoma. First tergite 0.6 times as long as apically wide, largely smooth and with shallow elliptical depression medially (Fig. 515); second–sixth tergites densely and coarsely punctate; sternites densely and coarsely punctate; second sternite distinctly convex in lateral view, its medio-apical protuberance medium-sized and blunt medio-apically (Fig. 517); third sternite about 0.4 times as long as second sternite, with two close large triangular protuberances medially (Fig. 517); hypopygium triangular in ventral view (Fig. 517).

Colour. Black; palpi dark brown; mandible black with teeth dark brown; antenna dark brown; frons with small yellowish brown spots along inter orbita, remainder of head black except for posterior vertex with small yellowish brown spots and narrow yellowish brown stripes along outer orbita; apex of supra-antennal elevations yellowish brown; tegulae dark brown; mesosoma laterally black except for antero-dorsal yellowish brown patch of pronotal side; metanotum with one medium-sized medial yellowish brown patch; hind trochanter, trochantellus and base of hind femur ivory, remainder of legs dark brown to black with tarsi paler; anterior half of fore wing dark brown, posterior half subhyaline; metasoma with moderate wide orange-brown apical band at apex of second tergite and sternite, third tergite with narrow orange-brown band at posterior margin, fourth to sixth tergites with large orange-brown patches posteriorly.

Male. Holotype male is very similar to the redescribed female except shape of second sternite. It has length of body 10.7 mm (of fore wing 8.1 mm); brown antenna with 23 segments with longitudinal tyloids on 10th-16th segments; outer orbita largely and pronotum dorso-posterioly ivory, head posteriorly and third tergite apically black; second sternite of male distinctly shallowly depressed medio-posteriorly; third sternite of male flat medially;

Biology.

Unknown. Collected in May and July.

Distribution.

China (Shaanxi), Korea.

Etymology.

Renamed after the blunt (subtruncate) protuberance of the second sternite of the female: from “sub” (Latin for "under, less") and “truncus” (Latin for "cut off").

Notes.

The replacement name of Taeniogonalos subtruncata is necessary after transferring flavicincta Bischoff, 1913 from the genus Lycogonalos Bischoff, 1913 and flavocincta Teranishi, 1929 from the genus Nanogonalos Schulz, 1906 to the genus Taeniogonalos Schulz, 1906 ( Carmean and Kimsey 1998). Both became secondary homonyms in spite that the names differ in one letter (articles 57.3.1, 58.12 of ICZN 1999; Lelej 2003).