Grotea surinamese Herrera-Flórez, 2019

Herrera-Flórez, Andrés Fabián & Penteado-Dias, Angelica, 2019, New species of Grotea Cresson (Hymenoptera: Ichneumonidae: Labeninae) from Brazil and Suriname, Zootaxa 4613 (1), pp. 53-70 : 59-61

Grotea surinamese Herrera-Flórez sp. n.

(Figs 7-10)

Material examined: Holotype: female, Suriname, Staudinger K. (coll. ZSM-HYM-25450).

Diagnosis. Head in dorsal view with gena slightly concave; postgenal process laterally distinct forming a conspicuous tooth (Fig. 7); propodeum with anterior transverse carina forming a smooth arc.

Description. Female.

Head. Head in dorsal view with gena behind eyes slightly concave; occipital carina slightly raised; posterior ocellus separated from eye by 1.0× its own maximum diameter; postgenal process present, laterally distinct (gena with ventroposterior angle modified to form a conspicuous tooth that is fairly evenly tapered from base to apex); clypeus with upper margin strongly decurved, appears hemispheroid.

Mesosoma. Mesoscutum smooth with sparse setiferous punctures; scutellum in profile convex; propodeum with area basalis tapered and narrowed posteriorly; anterior transverse carina forming a smooth arc; pleural carina present ( Fig. 9 ); posterior transverse carina, centrally absent; lateral longitudinal carina anteriorly absent; area spiracularis enclosed, posteriorly and laterally, though mesally not separated from area externa; area lateralis rectangular and enclosed, with posterolateral corner well removed from the lobe surrounding coxal insertion. Mesosoma 4.97 mm; mesosoma equal to length of tergite I (Fig. 8). Fore wing 11.6 mm long, hind wing 7.73 mm.

Metasoma. Tergite I 4.95 mm; metasoma with tergite I exceptionally slender ( Fig. 10 ), about as long as mesosoma from pronotal collar to posterior margin of propodeum ( Fig. 9 ).

Coloration (Figs 7–10). A mostly black and yellow species: head with gena mostly black, area surrounding eyes yellow; interocellar area black; frons, face, clypeus, labrum, mandibles and maxillar palps yellow; antennae incomplete; antennae with scape ventrally yellow, the rest black; flagellomeres mostly black with a few intermediate segments yellow. Mesosoma with pronotum anteriorly yellow, the rest black; mesoscutum mostly black, with lateral spots and one central spot towards the posterior margin yellow; scutellum and postcutellum yellow; mesopleuron posteroventrally and with anterodorsal half yellow, the rest black; propodeum mostly black with posterior 1/3 and spots in front of spiracles yellow. Fore leg yellow. Mid leg mostly yellow: trochanter with ventral spots; femur and basal spot on dorsal part of tibia black; tarsomere 1 mostly brownish, the rest missing in both legs. Hind leg with coxa basally and apically yellow, the rest (centrally) black; trochanter mostly black; trochantellus mostly yellow; femur mostly black with apical part yellow; tibia mostly brownish, apically narrowly yellow; tarsi brownish. Wings hyaline with apical brownish spot, pterostigma brownish. Metasoma tergite I mostly black, with dorsal longitudinal and transverse apical spots yellow; rest of tergites mostly black with apical transversal spot yellow; last sternite yellow. Ovipositor sheath black.

Remarks. Grotea surinamese sp. n. is most similar to G. manausi sp. n. in color pattern and in some morphological features (e.g. head in dorsal view with gena slightly concave and postgenal process present). However, the postgenal process is laterally distinct in G. surinamese ( Fig. 13 ) but indistinct G. manausi . This last feature also distinguishes G. surinamese from other black and yellow Grotea species from Chile and Colombia (i.e. from G. cortesi ( Porter 1989) and G. gayi (Spinola 1851) that lack a postgenal process and from G. chiloe ( Porter 1989) , G. eburnea ( Porter 1989) , G. oneilli ( Porter 1989) , G. llanera Herrera-Florez, 2018 and G. cundinamarquesa Herrera- Florez, 2018 that have a postgenal process that is laterally indistinct).

Etymology. The name refers to the type locality: Suriname.

Figures

FIGURES 9–10. Grotea surinamese sp. n. Herrera-Flórez, 9 Mesosoma (lateral view); 10 Wings, propodeum & metasoma (lateral view).

FIGURES 13–14. Grotea delicator (Thunberg 1822) (Holotype), 13 Face & antennae; 14 Data label & Habitus (lateral view).