Stenonartonia tanykaju Garcete-Barrett

Garcete-Barrett, Bolívar R., 2011, A revision of the genus Stenonartonia Giordani Soika 1973 (Hymenoptera: Vespidae: Eumeninae), Zootaxa 2868, pp. 1-50 : 24-25

publication ID	https://doi.org/ 10.5281/zenodo.277490
DOI	https://doi.org/10.5281/zenodo.6191432
persistent identifier	https://treatment.plazi.org/id/A7084763-FFEE-EF2C-FF00-CFDBFC2137B8
treatment provided by	Plazi
scientific name	Stenonartonia tanykaju Garcete-Barrett
status	sp. nov.

Treatment

Stenonartonia tanykaju Garcete-Barrett , sp. nov.

( Figs 7 View FIGURES 5 – 8 , 21 View FIGURES 9 – 23 , 32, 35 View FIGURES 24 – 35. 24 – 32 , 45 View FIGURES 36 – 47 , 53 View FIGURES 48 – 56. 48 - 53 , 64 View FIGURES 57 – 64 , 75 View FIGURES 65 – 76 , 86 View FIGURES 77 – 86 , 94 View FIGURES 87 – 95 , 106 View FIGURES 96 – 108 , 120 View FIGURES 109 – 122 , 134 View FIGURES 123 – 136 , 147 View FIGURES 137 – 148 , 158 View FIGURES 149 – 159 , 167 View FIGURES 160 – 167 , 175 View FIGURES 168 – 175 , 181 View FIGURE 181 )

Diagnosis and comments. This is a moderately small species with a conical and strongly transversely carenated T1. It looks a lot like S. mimica at first sight, but the wide anterior axillary fossula, partly covered under the fingerlike parategula, and the propodeum, slightly creased and obtusely angulate at sides and almost flat on its posterior declivity readily separate this species.

Description. FEMALE. Color pattern. Black integument with yellow to testaceous markings as follows: base of mandibles; inner orbit from clypeal border up to the ocular sinus; scape ventrally; interantennal spot; thin, short and darkened frontal line; comma shaped line between the eye and the posterior ocellus; lower gena, even posteriorly; thin and medially interrupted hind pronotal margin; small suffusion on the lower corner of pronotum and larger one on the pronotal lobe; thin and short submedial line on mesoscutum which can be absent; darkened subalar spot; small mesepisternal and metapleural precoxal spots; lower submedial propodeal spot; fore coxa largely; inner face of fore femur; fore tibia except for a large external darkening; all tarsi; apical ring extending over the apical three fourths of the anterior and the dorsoposterior face of mid and hind femur respectively; external face and apical ring of mid and hind tibia; hind and lateral margin of T1, getting diffuse at sides; whole S1 with some darkening; very diffuse and darkened apical margin on metasomal segments 2–5. There are some brown areas as follows: flagellum ventrally, getting lighter toward the apex; gradual mesal darkening on mandible toward apex; thick posterior diagonal strip on tegula; lateral suffusion on metasomal segment 2; almost whole metasomal segment 6. Wing color pattern as in S. mimica .

Measurements and proportions. Body length 9.8 mm. Wing length 10 mm. Clypeus 1.12 × wider than high and with its apical margin 0.9 × as wide as the interantennal distance. T1 as wide as long and 0.71 × as wide as T2. S1 shaped as in S. apicipennis , 2.43 × wider than its medial length and 2.15 × wider than its total length.

Structure. Clypeus cordiform, with rounded sides, moderately convex, with a shallow apical depression and a semicircularly concave emargination between two sharp and carinated downpointing teeth. Humeral angle, pronotal carina, parapsidal line and metanotum as in S. mimica . Parategula digitiform and convex above. Scutellar-axillar complex as in S. apicipennis . Propodeum a little more elongate than in S. apicipenis and with its posterior declivity almost completely flat by confluence of the sublateral face, the medial depression and the extremely shallow and poorly defined medial channel. Propodeum slightly longitudinally creased behind the spiracle, obtusely angular at side in upper view, with a complete medial carina and the sublateral carina short and sharp. Apical propodeal lamella as in S. mimica , but with lateral crease and with the valvula obtusely dislocated from it. T1 differing from that of S. mimica in being a little less convex and with the transverse carina straighter at middle.

Tegumental sculpture. Clypeus sub opaque, finely reticulated, with very few micropunctures and covered with shallow and moderately spaced macropunctures. Body surface as in S. mimica , but duller and with thinner macropunctation, metasomal segments with less differentiated apical band and propodeum with macropunctation sparser medially and less evident shagreening.

Pilosity. Differing from S. mimica by having the clypeus covered with numerous yellowish setae and the propodeal pilosity as in S. apicipennis .

MALE. Differing from the female in: Color pattern. Clypeus yellow with a large mid basal black pyriform spot. Yellow area of mandible more extensive. Antennae lighter below, with F9 extensively and F10 and F11 entirely yellowish. Frontal and metanotal markings sharper. Mid and hind femur lighter externally. T1 with a sublateral spot on its anterior declivity and with its disc brownish. Metasomal segment 2 brownish.

Measurements and proportions. Body length 8.5 mm. Wing length 9.2 mm. Clypeus as wide as high and with its apical margin barely wider than the interantennal distance.

Structure and tegumental sculpture. Clypeus small, almost without apical depression, with its apical margin translucent, including the non-carinated teeth and with its surface sub shinning, without micropunctures and with even thinner and sparser macropunctures.

Type material. Holotype Ƥ, BRAZIL: Paraná: Piraquara, Mananciais da Serra, 26.ii.2006 (G.A.R. Melo) [ DZUP]. Paratypes: BRAZIL: Paraná: Tijucas do Sul, Associação dos Professores, 10.iv.2003 (A.M. Siqueira) [1 Ƥ: DZUP]; Santa Catarina: Nova Teutônia, iv.1964 (F. Plaumann) [1 3: MCNV]; same locality, 300–500 m, 27°11'S, 52°23'W, ii.1965 (F. Plaumann) [1 3: MCNV].

Distribution. Highlands of Paraná and Santa Catarina in Southen Brazil.

Etymology. The name of this species comes from the Guarani laguage: tañykã means jaw and ju means pale or yellow colored, referring to the yellow marked gena of this species.