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

description: Key to the species of Stenonartonia
1. Scutellum not depressed at sides, but expanded into a translucent amber colored lamella (Figs 79–83) overhanging the axillary fossa which has a very small opening. Axilla little depressed posterolateraly (Figs 79–83). Quite large yellow wasps with black markings on head and mesosoma and brown bands on metasomal terga (Figs 38–39), reminiscent of the social wasp Agelaia fulvofasciata (De Geer). (Species-group of S. polybioides)..................................................... 2
- Scutellum and axilla strongly depressed towards the axillary fossa (Figs 77–78, 84–86). Scutellum without a lateral expansion (Figs 84–85) or at most a depressed one which is as dark and opaque as the remainder of the scutellum (Figs 77–78). Medium sized wasps with different color patterns (Figs 36–37, 40–53)................................................. 6
2. Scutellum with a distinct translucent bubble-like anterolateral “window” (Figs 79–80). Metanotum low and rounded in profile (Fig. 68). Propodeum covered with fine oblique striae and very reduced macropunctation (Figs 97–98). Apical margin of the clypeus straight in both sexes (Figs 11–12, 25–26). Male mid femur strongly distorted by deep ventrobasal and mesodorsal concavities (Fig. 54). Males with F9 concave ventrally and F11 curved, flattened and very elongate (Figs 58–59)......... 3
- Scutellum without a bubble-like anterolateral “window”. Metanotum either low and rounded or high and angular in profile (Fig. 69). Propodeum with visible macropunctation mixed with either strong or very fine striae of varied direction (Figs 99– 101). Apical margin of the clypeus at least slightly concave in females (Figs 13–15) and known males (Fig. 27). Known males with just a shallow basoventral flattening on the mid femur (Fig. 56). Known males with F9 cylindrical and F11 short, cylindrical and tapering apically (Fig. 60)........................................................................ 4
3. Sublateral propodeal surface weakly convex (Fig. 89). Anterior declivity of T1 barely convex (Figs 111 and 125). Anterior metanotal band of denser sculpture strongly tapering at sides (Fig. 79). Disc of S1 with some weak transverse striae (Fig. 139). Female clypeus almost 1.4 × wider than high (Fig. 11). Male clypeus without distinct macropunctures (Fig. 25). Male with F11 flatter and ventral concavity of F9 deeper (Fig. 58).................................. S. polybioides (von Schulthess)
- Sublateral propodeal surface markedly convex (Fig. 90). Anterior declivity of T1 strongly convex (Figs 112 and 126). Anterior metanotal band of denser sculpture thick all across (Fig. 80). Disc of S1 with a series of concentric U -like striae (Fig. 140). Female clypeus about 1.2 × wider than high (Fig. 12). Male clypeus with some distinct scattered macropunctures (Fig. 26). Male with F11 sub-cylindrical and ventral concavity of F9 shallower (Fig. 59)...................... S. hasyva sp. nov.
4. Metanotum low and convex (as in Fig. 68), with a very weak ridge (Fig. 81). Lateral axillary panel straight behind, not projected towards the axillary fossa (Fig. 81). Lateral lamella of scutellum with its border upturned, lip-like (Fig. 81). Axilla visibly depressed posterolaterally (Fig. 81). Propodeum strongly obliquely striatopunctate (Fig. 99). Apical propodeal lamella rounded above (Fig. 127). T1 narrower and gradually expanded posteriorly (Fig. 113). S1 gradually expanded (as in Fig. 140) and with some weak transverse striate....................................................... S. perdita sp. nov.
- Metanotum angularly bent in profile (Fig. 69, a little less in S. guaraya), with a stronger ridge (Figs 82–83). Lateral axillary panel produced behind towards the axillary fossa opening as a tongue-like projection (Figs 82–83) Lateral lamella of the scutellum thin, not upturned (Figs 82–83). Axilla hardly depressed posterolaterally (Figs 82–83). Propodeal sculpture either primarily longitudinally striate (Fig. 100) or densely punctate with very fine, hardly visible, transverse striae (Fig. 101). Apical propodeal lamella more or less angularly projecting above (Figs 128–129). T1 wider, campaniform (Figs 114–115). S1 abruptly expanded and not transversely striate (Figs 141–142).................................................. 5
5. Propodeal striae strong and mostly longitudinal, mixed above with coarse macropunctures (Figs 82, 100). T1 with well marked transverse carina, transverse sulcus and longitudinal sulcus (Fig. 114). Metanotum acutely angled in side view (Fig. 69). Posterior tongue-like projection of the lateral axillary panel longer than the parategula, produced further backward (Fig. 82). Scutellar crest with scattered pilosity which does not obscure the opening of the axillary fossa (Fig. 82). Female clypeus about 1.2 × wider than high (Fig. 14). Dark metasomal markings reddish brown (Fig. 152). Middle of T2 with macropunctures mostly obscured amongst abundant micropunctation (Fig. 152)........................................ S. cooperi sp. nov.
- Propodeal striae very weak and almost transverse, mostly obscured by well spread dense though not very coarse macropunctation (Figs 83, 101). T1 with weak transverse carina and without either transverse or longitudinal sulci (Fig. 115). Metanotum straight angled in side view. Posterior tongue-like projection of the lateral axillary panel about as long as the parategula, poorly produced backward (Fig. 83). Scutellar crest covered with abundant and long appressed pilosity which obscures the opening of the axillary fossa (Fig. 83). Female clypeus about 1.3 × wider than high (Fig. 15). Dark metasomal markings dark chestnut (Fig. 153). Middle of T2 with well visible macropunctures amongst poor micropunctation (Fig. 153).... S. guaraya sp. nov.
6. Occipital carina complete. Propodeum with a well defined rounded posterior concavity (Figs 87–88) and its lateral surface alveolate above (Figs 65–66). Apical propodeal lamella rounded and inseparably fused with the valvula (Figs 123–124). Scutellum expanded over the opening of the axillary fossa, which is this slit-like (Figs 77–78). T1 short and wide (Figs 109– 110), strongly bent above in side view (Figs 123–124). S1 crescent-shaped (Figs 137–138). Specialized area of the female vertex semielliptical (Fig. 33). Epicnemial carina indicated though weak (Figs 65–66). (Species-group of S. occipitalis)...... 7
- Occipital carina interrupted behind the interocular space. Propodeum without a well defined rounded posterior concavity (Figs 91–95) and with its lateral surface regularly macropunctate above (Figs 71–76). Apical propodeal lamella more or less sharply projecting (Figs 131–136). Scutellum not expanded over the opening of the axillary fossa, which is then broadly oval (Figs 84– 86). T1 variable, elongate in most of the species (Figs 116–122), but always low and gently convex above in side view (Figs 130–136). S1 variable (Figs 143–148) from crescent-shaped (Fig. 145) to elongate triangular (Fig. 144). Specialized area of
the female vertex thin, boomerang-like (Fig. 35). Epicnemial carina absent (Figs 71–76). (Species-group of S. apicipennis)..................................................................................................... 8 7. Propodeal concavity sharply defined above and covered with reflecting down depressed pilosity (Figs 77, 87). T1 angularly bent above in side view and with a sharp transverse carina (Figs 109, 123). S1 thicker and yellow (Fig. 137). Lateral expansion of the scutellum free of macropunctation (Figs 77, 87). Pilosity over mesosomal dorsum shorter and not obscuring the surface (Figs 65, 77, 87). Mesosoma and tegula with some yellow markings (Fig. 87). Fore wing bright orange with contrasting dark infuscate tip (Fig. 36). Mid and hind tarsi with a pattern of whitish rings (Fig. 36)................. S. rejectoides sp. nov.
- Propodeal concavity diffusely defined above and covered with erect, non reflective pilosity (Figs 78, 88, 96). T1 roundly bent above in side view and with a low transverse carina (Figs 110, 124). S1 thinner and almost wholly dark (Fig. 138). Lateral expansion of the scutellum covered with macropunctures (Figs 78, 88). Pilosity over mesosomal dorsum longer and denser, obscuring most of the surface (Figs 66, 78, 88, 96). Mesosoma and tegula wholly dark (Fig. 88). Fore wing dull amberish, gradually changing to weakly brown infuscate toward the tip (Fig. 37). Mid and hind tarsi wholly dark (Fig. 37).............................................................................................. S. occipitalis sp. nov.
8. Medial channel of the propodeum deep and sharply defined, especially below, where it widens into a smooth concavity, and with the medial carina interrupted at the concavity, not reaching the submarginal carina (Fig. 103). T1 with a well defined medial carina along its anterior declivity (Fig. 131). S1 elongate, about 1.5 × wider than long (Fig. 144). Head and mesosoma shinier than in the remaining species (Fig. 72).................................... S. flavotestacea (Giordani Soika)
- Medial channel of the propodeum shallow and dull, without a special concavity below, and with the medial carina reaching the submarginal carina (Figs 84–86, 91–95, 102, 104–108). T1 without a defined carina along its anterior declivity (130, 132– 136). S1 shorter, at least twice as wide as long (Figs 143, 145–148)............................................ 9
9. S1 crescent-shaped, more than 3 × wider than long (Fig. 145). Grayish black wasps with well defined orange yellow metasomal bands and fore wing amberish, gradually changing to brown infuscate toward the tip, reminiscent of the social wasp Brachygastra lecheguana (Latreille) (Figs 43, 51)........................................ S. guaranitica (Bertoni)
- S1 triangular, at most 2.5 × wider than long (Figs 143, 146–148). Color pattern different (Figs 40–41, 44–47, 49–50, 52–53)................................................................................................... 10
10. Anterior axillary fossula small and completely exposed behind the parategula, this latter being thin and careniform as seen from above (Figs 84, 91). Propodeum smoothly rounded at sides as seen from above. Medial channel covered below with erect, non reflective pilosity (Figs 84, 91, 102)................................................. S. mimica (Kohl)
- Anterior axillary fossula large and largely hidden under the parategula, being this latter wider and digitiform as seen from above (Figs 85–86, 92–95). Propodeum obtusely angular at sides as seen from above. Medial channel covered below with a band of reflective, down depressed pilosity (Figs 85–86, 92–95, 104–108)....................................... 11
11. Clypeus opaque, densely shagreened and micropunctate in both sexes (Figs 20, 31). Female clypeus covered with only thin appressed pubescence and no bristles (Fig. 20). Transverse carina of T1 rather weak, interrupted at middle (Fig. 119) and ending straight at the side before reaching the level of the spiracle (Fig. 133). T2 covered with well defined macropunctures, separated amongst them by 1–2 × their own diameter at the middle and becoming very dense and coarse posteriorly, forming a well defined preapical band (Fig. 157). Tegula largely smooth and free of piliferous micropunctation externomedially (Fig. 93). Grayish black wasps with fore wings blackened along the costal region (reminiscent of the social wasp Polybia ignobilis) and with very reduced yellow markings on the legs (Figs 44, 52).................................... S. apicipennis (Fox)
- Clypeus at least a little shiny, without dense shagreening and with sparser micropunctation in both sexes (Figs 21–23, 32). Female clypeus with numerous yellowish bristles (Figs 21–23). Transverse carina of T1 strong and continuous at middle (Figs 120–122), reaching the level of the spiracles and curving backward at the side (Figs 134–135) except in S. grossa (Fig. 136). T2 covered with weaker macropunctures, separated amongst them by 2–3 × their own diameter at the middle and becoming just a little coarser but not much denser posteriorly, so a preapical band is not defined (Figs 158–159). Tegula with piliferous micropunctation over its entire surface (Figs 94–95). Rather brownish black wasps with fore wings brownish (reminiscent of the social wasps Agelaia vicina (de Saussure) and Polybia minarum Ducke) and extensive yellowish or reddish markings on the legs (Figs 45–47, 53).............................................................................. 12
12. Metanotal ridge sharp. Humeral angle obtuse and rounded. Macropunctation of T2 sparser and better defined amongst sparser micropunctation and pilosity (Fig. 158). Clypeus with micro and macropunctation weak and sparse in both sexes (Figs 21, 32). Mandibles and lower genae largely yellow in both sexes (Figs 21, 45). Mesonotum, metanotum and mesepisternum with some dark reddish markings (Figs 45, 75, 86, 94, 106). Fore wing lighter (amberish) basally (Figs 45 and 53) … S. tanykaju sp. nov.
- Metanotal ridge blunt. Humeral angle sharper, straight angled. Macropunctation of T2 denser and mostly obscured amongst denser micropunctation and pilosity (Fig. 159). Males unknown. Female clypeus with micro and macropunctation strong and dense, at least over its dorsal third (Figs 22–23). Females without yellow or reddish markings on mandibles, genae, mesonotum, metanotum nor mesepisternum (Figs 22–23, 46–47, 76, 95, 107–106). Fore wing more uniformly dark brown, even at its base (Figs 46–47).................................................................................... 13
13. T 1 in side view with its anterior declivity depressed and the transverse carina bowed backward at the level of the spiracle (Fig. 135). Apical lamella of the propodeum in the shape of a small back-pointing projection separated from the valvula by a semicircular notch (Fig. 135). Clypeus covered with rather sparse and shallow macropunctation and with abundant micropunctation over its dorsal half (Fig. 22)............................................................. S. hermetica sp. nov.
- T1 with its anterior declivity convex and the transverse carina ending straight at the level of the spiracle (Fig. 136). Apical lamella of the propodeum in the shape of a large triangular up-pointing projection separated from the valvula by an obtusely angular notch (Fig. 136). Clypeus covered with abundant and well marked macropunctation and with sparser micropunctation concentrated over its dorsal third (Fig. 23).................................................... S. grossa sp. nov.
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 6-7, DOI: 10.5281/zenodo.277490