Bareogonalos huisuni Yamane & Yamane, 1975

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 : 11-12

Bareogonalos huisuni Yamane & Yamane, 1975 Figs 18-28

Bareogonalos huisuni Yamane & Yamane, 1975: 456; Weinstein and Austin 1991: 412; Carmean and Kimsey 1998: 61.

Type material.

Paratypes, ♀ (RMNH) "[China:] Taiwan, Nantou, Kwantau Shih, 15.III.1973, S. Yamane", or "6.VI.1973, S. Yamane", "Paratype Bareogonalos huisuni Sk. et S. Yamane". Holotype ♀ (HUS) and 3 ♀ topotypic paratypes (HUS) are not examined.

Diagnosis.

Head nearly as wide as mesoscutum (Fig. 23); anterior half of scutellum distinctly convex and above level of mesoscutum; metanotum weakly convex and without protuberance, its setae medium-sized (Fig. 23); protuberance of second sternite of ♀ densely setose and widely truncate medially (Fig. 26); metasoma largely finely and rather densely punctate and rather dull (Figs 25, 27).

Description.

Female paratype, length of body 11.0 mm (of fore wing 10.7 mm).

Head. Antenna with 20 segments, segments of apical half about as long as wide (Fig. 21); frons and vertex smooth and strongly shiny (Figs 19, 20), with long yellowish setae; head gradually narrowed behind eyes and nearly as wide as mesoscutum (Fig. 23); dorsal length of eye 1.7 times length of temple (Fig. 20); temple smooth and shiny; occipital carina narrow lamelliform medio-dorsally and with a short crenula; supra-antennal elevations hardly developed as a thin rim and smooth; clypeus moderately emarginate and thick medio-ventrally.

Mesosoma. Length of mesosoma 1.3 times its height (Fig. 24); mesopleuron below transverse mesopleural groove largely smooth and weakly shiny, above groove coarsely irregularly reticulate; transverse mesopleural groove wide, deep and coarsely crenulate; notauli medium-sized and distinctly crenulate; mesoscutum largely irregularly rugose and matt, contrasting with shiny head (Fig. 23); scutellar sulcus present medially and narrowed, laterally wide and coarsely crenulate; scutellum reticulate-rugose, convex and anteriorly above level of mesoscutum, posteriorly flattened and finely sculptured; metanotum flattened and medially with some rugae (Fig. 23); propodeum largely irregularly reticulate-rugose (Fig. 23).

Metasoma. First tergite 0.3 times as long as apically wide, gradually narrowed basally, with wide oval depression medially and straight apically; second tergite densely finely punctulate and slightly shiny; second sternite smooth and shiny, its medio-apical protuberance densely setose and widely truncate medially (Fig. 26), protuberance of third sternite similar to it but smaller (Fig. 26); hypopygium truncate apically.

Colour. Black or dark brown (including palpi) with yellow pattern (including mesopleuron; Figs 18, 23, 24, 26); mandible largely chestnut brown; scapus and pedicellus yellow, third and following segments brown, but apical half of antenna dark brown; pronotum dorso-apically and dorsally, pair of wide patches on mesoscutum anteriorly, scutellum (except posteriorly), axilla partly, lateral patch of propodeum, basal 0.4 of second tergite (except small anterior patch and laterally), anterior quarter of 3 rd– 5th tergites (except laterally) and narrow median stripe of 4 th– 7th tergites, apex of fore and middle femora, base of fore and middle tibiae, yellow; hind coxa dorso-apically, inner side of middle trochanter and hind trochanter and trochantellus pale yellow; pterostigma and veins 1-SR, 1-M and more distal veins of fore wing light brown; membrane of anterior half of fore wing rather dark brown, remainder of wing membrane slightly infuscate.

Male. Unknown ( “males” reported by Yamane and Yamane (1975) concerns females).

Biology.

Reared from Vespula flaviceps karenkona Sonan ( Vespinae : Vespidae ). Collected in March.

Distribution.

China (Taiwan).

Notes.

The illustrated paratype is a female and not a male as reported by Yamane and Yamane (1975).