Plagiolabra andina Brèthes, 1906

Hermes, Marcel G., 2007, Contribution to the knowledge of the Neotropical genus Plagiolabra von Schulthess (Hymenoptera, Vespidae, Eumeninae) *, Zootaxa 1583 (1), pp. 15-22 : 16-20

Plagiolabra andina Brèthes, 1906

( Figs. 1, 2, 3, 4, 5 , 12, 13, 14, 15, 16 , 22 )

Plagiolabra andina Brèthes, 1906 , An. Mus. Nac. Buenos Aires 13: 341, holotype female – “ Argentina: Jujuy ” (Buenos Aires). Zavattari, 1912, Arch. Naturgesch. 78A (4): 6, 164.

Female measurements (mm): FWL = 10,75; BL = 13,75; HW = 3,62; HH = 3,00.

Coloration: female integument black with yellow markings as follows: marks on upper lateral portions of clypeus; marks on frons above the level of antennal sockets; marks on genae at the level of the eye emargination; stripes on pronotum adjacent to pronotal carina and mesoscutum; mark on upper portion of mesopleuron; marks on tegulae and parategulae; marks on lateral portions of scutellum and metanotum; apical stripes on T1–T2 and S2. Wing membrane brownish and venation brownish-black. Yellow marks on male as in female except: mark on base of mandibles; clypeus entirely; longitudinal stripe on inner face of scape; marks on mesopleuron absent; marks on scutellum reduced; longitudinal stripes on inner face of tibiae; apical stripes on T1–T4.

Pilosity: erect brownish hairs on head and mesosoma. In the male the hairs are longer and also present on T1.

Integument surface: punctures in general coarse, especially on head and mesosoma, with space between punctures filled with micropunctation. Punctures of metasoma less coarse.

Male genitalia: the paramere is longer than broad, the parameral spine is short on its apical portion (fig. 16) and the ventral processes of the aedeagus are enlarged and serrate beneath (figs. 14 and 15). In comparison with P.nigra , the head of aedeagus is less swollen, the lateral apodemes are longer and less projected laterally, and the basal apodeme has its basal margin rounded to truncate (figs. 14 and 15). The volsella is pincerlike, the digitus forming a short lamina compared to species of Pseudodynerus , for example. It bears long and dense pilosity. The cuspis bears long pilosity mixed with short pilosity (figs. 12 and 13).

Material examined: Argentina, Salta: one male ( AMNH), ‘ARG. – SALTA \ Cnel. Moldes\ Fritz-12.94’ ‘ Plagiolabra \ andina (Br.) \ Fritz det.’. Paraguay, Canindeyu: one female ( IBNP), ‘ PARAGUAY: CAN- INDEYU\ Res. Nat. Bos. Mbaracayu\ Lagunita, 13. ix. 1995 \ B. R. Garcete Barrett’ ‘0075’ ‘ Plagiolabra \ andina\ Brèthes\ det. B. Garcete 1997’.

Figures

FIGURE 22. Collecting record map (examined material, literature and unpublished records kindly provided by Bolívar Garcete) of species of Plagiolabra. Zavattari (1912) cites that P. nigra also occurs in the Bolivian Chaco, but no exact location is given therein.

FIGURES 1–5. Plagiolabra andina: 1–2: Head, frontal view: 1: Female; 2: Male; 3: Head (female), dorsal view; 4–5: General aspect, lateral view: 4: Female; 5: Male; scale bar for figs. 1–2 = 2 mm, fig. 3 = 1 mm, figs. 4–5 = 5 mm.

FIGURES 12–16. Plagiolabra andina, male genitalia: 12–13: Volsella; 12: Anterior view; 13: Posterior view; 14–15: Aedeagus; 14: Lateral view; 15: Ventral view; 16: Paramere; scale bar for figs. 12–13 = 0,25 mm, figs. 14–16 = 1 mm.