Polysphincta sinearanea Padua , 2018

Padua, Diego G., Saeaeksjaervi, Ilari E., Spasojevic, Tamara, Kaunisto, Kari M., Monteiro, Ricardo F. & Oliveira, Marcio L., 2021, A review of the spider-attacking Polysphincta dizardi species-group (Hymenoptera, Ichneumonidae, Pimplinae), with descriptions of seven new species from South America, ZooKeys 1041, pp. 137-165 : 137

Polysphincta sinearanea Padua, 2018 Fig. 9A-E

Polysphincta sinearanea Pádua, 2018 in Kloss et al. 2018: 102. Holotype ♀, Brazil ( INPA).

Diagnosis.

Polysphincta sinearanea can be distinguished from other species of the P. dizardi species-group by the combination of the following characters: (1) epomia present, about 0.9 times length of proximal mandibular width (Fig. 9B ); (2) malar space 0.5-0.6 times as long as proximal mandibular width (Fig. 9B ); (3) fore wing vein 1 cu-a more or less interstitial relative to M&RS (Fig. 9A ); (4) mesosoma entirely orange (Fig. 9A ); (5) fore wing very slightly yellowish hyaline (Fig. 9A ); (6) hind leg orange with femur, tibia and tarsus brownish (Fig. 9A ); (7) metasoma orange, with posterior margins of tergites II-IV narrowly black, posterior half of tergite V black, and tergites VI+ black (Fig. 9A, C ); (8) ovipositor robust, 1.5 times as long as hind tibia.

Comments.

Additional characters to the original description (♀) are as follows: head in dorsal view with margin of the gena flat behind the eyes, and its margin [0.7] times length of eye; shelf-like projection, in dorsal view, weakly developed in the anterolateral part of apex, the apex more or less straight, not bilobed, and in lateral view, with anterolateral part in apex more or less rounded and not decurved; mesoscutum robust, in dorsal view; tarsal claw with proximal lobe quadrangular, with claw apex slightly overtaking the distal margin of lobe; ovipositor robust.

Distribution.

Brazil (Fig. 12 ).

Biological notes.

Parasitoid of the spider species Metazygia laticeps (O. Pickard-Cambridge, 1889) ( Kloss et al. 2018).

Materials examined.

Holotype: Brazil, Espírito Santo, Cariacica, Res. [= Reserva] Biologica de Duas Bocas , 26.I.2017, parasitizing M. laticeps (T.G. Kloss leg.), INPA . Paratypes: same data of holotype, 1♀ and 2♂♂ (one with the last metasomal segments extracted), INPA; Minas Gerais, Viçosa, Mata do Prof. Chaves ( Silvestre ), V.2017, parasitizing M. laticeps (T.G. Kloss leg.), 1♀ and 1♂, INPA .

Figures

Figure 9. Polysphincta sinearanea Padua, 2018, ♀, paratype A habitus, lateral view B head and pronotum, lateral view C habitus, dorsal view D face, anterior view E head and shelf-like projection, dorsal view.

Figure 12. Distribution of Polysphincta dizardi group in the Neotropical Region.