Stenonartonia hermetica Garcete-Barrett

Garcete-Barrett, Bolívar R., 2011, A revision of the genus Stenonartonia Giordani Soika 1973 (Hymenoptera: Vespidae: Eumeninae), Zootaxa 2868, pp. 1-50 : 25-26

publication ID	https://doi.org/ 10.5281/zenodo.277490
DOI	https://doi.org/10.5281/zenodo.6191434
persistent identifier	https://treatment.plazi.org/id/A7084763-FFE1-EF2D-FF00-CFAFFD833740
treatment provided by	Plazi
scientific name	Stenonartonia hermetica Garcete-Barrett
status	sp. nov.

Treatment

Stenonartonia hermetica Garcete-Barrett , sp. nov.

( Figs 22 View FIGURES 9 – 23 , 46 View FIGURES 36 – 47 , 95 View FIGURES 87 – 95 , 107 View FIGURES 96 – 108 , 121 View FIGURES 109 – 122 , 135 View FIGURES 123 – 136 , 148 View FIGURES 137 – 148 , 159 View FIGURES 149 – 159 , 181 View FIGURE 181 )

Diagnosis and comments. S. hermetica is a moderately large and blackish species similar to S. apicipennis in some respects, but with a more rounded, less duller and setae-covered clypeus, a laterally more angulate and posteriorly flatter propodeum and a stronger transverse carina on T1 that put it closer to S. tanykaju . The extensively micropunctate clypeus, salient humeral angle, smoothly declivitous metanotum and peculiarly shaped apical propodeal lamella and valvula complex set apart this species. Its color pattern is reminiscent of the social wasp Polybia minarum in having very few yellow markings, reddish marked legs, dark brown wings and brownish pilosity.

Description. FEMALE. Color pattern. Black integument with the following yellow markings: lower inner orbit not reaching the ocular sinus; lateral traces of posterior pronotal margin; diminutive mesepisternal and metapleural precoxal spots; small spot around the sublateral propodeal carina; thin line at the base of the propodeal valvula; thin and darkened posterior and lateral margin of T1; boundaries of S1. Light reddish brown are: flagellum below; outer tegular margin; inner face and apical ring of fore femur; inner face and external line on fore tibia; all tarsi; apical ring on mid and hind femora; anterior face and posterior line of mid and hind tibiae; almost imperceptible hind margin of metasomal segments 2–6. Fore wing membrane dark brown infuscate. Fore wing venation blackish brown.

Measurements and proportions. Body length 11.2 mm. Wing length 11.5 mm. Clypeus 1.18 × as wide as high and with its apical margin 0.77 × as wide as the interantennal distance. T1 hardly wider than long and 0.69 × as wide as T2. S1 as in S. apicipennis , 2.32 × wider than its medial length and 1.65 × wider than its total length.

Structure. Head and mesosoma as in S. tanykaju but clypeus wider; humeral angle moderately produced, right angled though blunt pointed in frontal view; pronotal carina widely undulated below the humeral angle; parapsidal line obsolescent; metanotum smoothly declivitous and with an extremely blunt toothed ridge; propodeum flatter posteriorly; apical propodeal lamella small, without lateral crease but marginally separated from the valvula by a well marked semicircular notch. T1 differing from that of S. apicipennis by being strongly depressed above, with a flattened anterior declivity, with clearly salient spiracular tubercles and with a strong undulated transverse carina which is strongly bent backward at the level of the spiracle.

Tegumental sculpture. Clypeus subopaque, finely reticulate, with dense micropunctation on its upper half that rapidly dissipates below and covered with moderately to plainly spaced, thin, shallow and partly obscured macropunctures. Whole body sub opaque, covered with dense micropunctation. Sculpture of head and mesosoma as in S. apicipennis but sparser, shallower and differing in the following details: tegula covered with moderately dense micropunctation; anterior metanotal band covered with medium sized macropunctures, hardly forming crenation; propodeal declivity less dull, without transverse shagreening and covered with thin and sparse macropunctation, a little dense above and absent below at the middle. Mesosoma dull, densely micropunctate, less so on S1 and S2. T1 without evident macropunctures on its anterior declivity and with moderately sparse, shallow and very thin ones on its disc. S1 covered with dense and shallow macropunctation. T2 with sparse, very thin macropunctation obscured among the micropunctation and just a bit coarser on a posterior premarginal band. S2 covered with thin and sparse macropunctures. Macropunctation of metasomal segments 3–5 similar to that on the premarginal area of T2. Metasomal segment 6 covered with thin and sparse macropunctures.

Pilosity. Body covered with a thin, decumbent and moderately sparse brownish pubescence mixed with abundant pale, curved and semi erect setae. Pilosity longer and paler yellowish to silvery on thoracic sides and propodeum. Propodeum with a lower medial band of reflective downward appressed pilosity. Pubescence on metasoma thinner, denser and more plainly appressed.

MALE. Unknown.

Type material. Holotype Ƥ, BRAZIL: Paraná, Piraquara, Piraquara, 30.xi.2005 (M.G. Hermes) [ DZUP].

Distribution. Brazil: highlands of Paraná.

Etymology. The name of this species makes reference to the hermetic, almost esoteric difficulty I had in recognizing this species as a good one and also makes indirect reference to the collector of the holotype, my colleague and friend Marcel Gustavo Hermes.