Stenonartonia rejectoides Garcete-Barrett, sp. nov.
Creators: name: Garcete-Barrett, Bolívar R.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eumenidae
Stenonartonia
Stenonartonia rejectoides

description: Stenonartonia rejectoides Garcete-Barrett, sp. nov.
(Figs 1, 9, 33, 36, 65, 77, 87, 109, 137, 132, 149, 178)
Diagnosis and comments. S. rejectoides is recognized by having T1 angularly bent above and with a high transverse carina; sharply defined propodeal concavity covered with down-depressed reflective pilosity; metasomal dorsum covered with short pilosity which does not obscure the tegument; and a color pattern reminiscent of the social wasp Polybia rejecta (Fabricius) including a reddish tinged metasoma (due to appressed brassy pilosity in this species) and bright orange-blackish brown bicolored wings.
Description. FEMALE. Color pattern. Black integument with pale or whitish yellow markings as follows: mandibular disc; lateral clypeal line; short line below, along inner orbit; brief interantennal line; ventral face of scape; small spot on lower gena; small suffusion on lower pronotal corner; small suffusion in front of the pronotal fovea; some suffusion on the pronotal lobe; very thin posterior margin of pronotum; anterior and posterior tegular spots; metanotal band; small mesepisternal and metapleural precoxal spots; basal rim of the propodeal valvula; anterior line along the distal half of the fore femur; complete anterior line along fore tibia and basitarsus; brief mid and hind femur-tibia articulations; anterior line along the distal half of the mid tibia and the distal fourth of the hind tibia; mid and hind basitarsus except for the apex; basal half of mid and hind tarsomere 2; sides of mid and hind tarsomeres 3–4; a very tiny spot at the middle of the transverse carina of T1; thin posterior margin of T1 continuous forward along the lateral margin; whole S1; thin posterior margin of T2 to T5 (darker from T3). Light brown are: ventral face of pedicel and flagellum; some suffusion near the apex of the mandible; large outer suffusion at the middle of the tegula; marginal area and lower medial channel of propodeum; some suffusion on all femur-tibia articulations; all distitarsi; darkened mid spot on T6. Fore wing membrane and venation bright orange at base and dark chestnut from the pterostigma to the apex.
Measurements and proportions. Body length 9.4 mm. Wing length 8.6 mm. Clypeus 1.2 × wider than high and with its apical margin 1.2 × as wide as the interantennal distance. T1 1.2 × wider than long and 0.7 × as wide as T2. S1 broadly crescent-shaped: 3.3 × wider than its medial length and 1.9 × wider than its total length.
Structure. Clypeus moderately convex, with a slight triangular apical depression and a semicircularly concave apical margin between two rounded, translucent and slightly outward pointing teeth. Head regularly rounded, barely elevated and flattened just in the specialized area of the vertex. Occipital carina describing a regular arc and just slightly weakened at middle; humeral angle sharp and right angled in frontal view. Pronotal carina widely and shallowly emarginated below the humeral angle. Parapsidal line barely indicated. Parategula sickle shaped, careniform above. Posterior border of the lateral axillary panel completely transverse at a short distance behind the parategula. Inner lamella of the scutellar crest briefly emarginated, so the opening of the axillary fossa is narrowly oval. Metanotum declivitous, not sharply bent in side view, and hardly reaching the propodeal concavity. Metapleural sulcus effaced. Propodeal concavity sharply defined (almost carinate) above. Mid propodeal carina complete. Submedial propodeal carina very short and thin. T1 almost right angled above in side view, with its anterior declivity nearly flat and with a very slight indication of an elevated medial line and with its transverse carina continuous, sharply elevated throughout and strongly bent backward at the level of the spiracle; longitudinal sulcus very thin but complete.
Tegumental sculpture. Clypeus covered with mostly fusiform punctures separated by intervals of about half their diameter. Head moderately smooth, covered with evenly spaced piliferous micropunctation. Mesosoma duller, especially over its dorsum, where the micropunctation is denser. Head, pronotum, mesoscutum, scutellum and mesepisternum covered with coarse, dense and slightly fusiform macropunctation which is sparser at sides. Lateral scutellar expansion free of macropunctures. Micropunctures sparser close to the outer margin of the tegula. Metanotum with anterior band irregularly crenate and posterior declivity confluently macropunctate. Sublateral propodeal surface coarsely and partly confluently alveolate, this sculpture becomes finer and irregularly sparser over the lateral surface. Medial propodeal channel opaque and finely shagreened. Metasoma quite densely micropunctate. T1 with a few scattered thin macropunctures on its anterior declivity and regularly spaced coarse macropunctures on its disc. T2 covered anteriorly with thin and widely spaced macropunctures which become rapidly coarser and denser towards sides and posteriorly, as to form a distinct marginal band. T3 to T6 densely though not very coarsely macropunctate. S1 coarsely and reticularly macropunctate. S2 finely and sparsely macropunctate, more densely at sides. S3 to S5 covered with regularly coarse and spaced macropunctation. S6 without macropunctures. Pilosity. Whole body covered with a short, thin and not very dense brassy pubescence which become lighter (golden yellow to whitish) at sides and ventrally. The pubescence is denser on the metasomal terga, thus giving a coopery shine to this region. Head and metasoma with very sparse and mostly curved pale and thin setae. Propodeal concavity covered with down-depressed reflective pilosity.
MALE. Unknown.
Type material. Holotype Ƥ, BRAZIL: Amazonas: Manaus, Reserva Biológica do Cueiras, ZF 2, 100 m, 02°35'S, 60°12'W, 10.vii.2008 (M.G. Hermes) [DZUP].
Distribution. Brazil: central Amazonia.
Etymology. The name of this species refers to its color pattern reminiscent of the social wasp Polybia rejecta.
description: Published as part of Garcete-Barrett, Bolívar R., 2011, A revision of the genus Stenonartonia Giordani Soika 1973 (Hymenoptera: Vespidae: Eumeninae), pp. 1-50 in Zootaxa 2868 on pages 8-9, DOI: 10.5281/zenodo.277490