Grotea delicator ( Thunberg 1822 )

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 : 61-67

Grotea delicator ( Thunberg 1822)

( Figs 11–18 )

Material examined: Good quality images of the Holotype of Grotea delicator (Museum of Evolution Uppsala University) and the Holotype and the Paratype of G. lineata (Muséum National d’Histoire Naturelle Paris).

Description. Female.

Head. Head in dorsal view with gena behind eyes slightly concave ( Fig. 12 ); occipital carina moderately raised laterally; posterior ocellus separated from eye by 1.06× its own maximum diameter ( Fig. 12 ); postgenal process present, laterally distinct (gena with ventroposterior angle modified to form a conspicuous spatulate or ellipsoid tooth) ( Fig. 11 ); flagellomere I 1.2× as long as flagellomeres II and III combined. Upper margin of clypeus strongly decurved, hemispheroidal ( Fig. 13 ).

Mesosoma. Mesoscutum smooth with isolated inconspicuous punctures ( Fig. 12 ); scutellum in profile weakly convex; propodeum with area basalis tapered and narrowed posteriorly, about 3.8× as long as broad; anterior transverse carina indented centrally, thus not forming a smooth arc from side to side; pleural carina present; 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, about 2.2× as long as broad, with posterolateral corner removed from lobe surrounding coxal insertion. Mesosoma 2.64- 3.09 mm. Mesosoma equal to length of tergite I. Fore wing 11.5 mm long, hind wing 3.6 mm.

Metasoma. Tergite I 2.85-3.11 mm; metasoma with tergite I exceptionally slender, about as long as mesosoma frompronotal collar to posterior margin of propodeum ( Figs 11 & 17 ). Ovipositor 4.12 mm. Hind tibia 3.03 mm.; visible part of the ovipositor 1.36× as long as posterior tibia. Ovipositor, at rest, extending beyond the apex of metasoma by 1.36× the length of the hind tibia.

Coloration (Modified from Slobodchikoff, 1970) ( Figs. 11–18 ).

Head yellow, suffused with orange about ocelli and behind eyes; antennal flagellum black. Pronotum yellow; mesoscutum yellow, its lateral edges black, with median and pair of submedian longitudinal orange stripes; scutellum and postscutellum yellow; propodeum yellow, with irregularly-shaped black band that includes first median area, area lateralis and portion of propodeum behind anterior transverse carina. Fore and middle legs yellow. Hind legs orange. Distal tip of fore wing lacking conspicuous brown spot. First tergite yellow, dorsally with median and pair of sublateral longitudinal black stripes on anterior 0.75 and orange on posterior 0.25. Metasomal sternites yellow; metasomal tergites orange.

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Distribution. Argentina; Brazil: Santa Catarina: Nova Teutonia; Guyana; Suriname; Leeward Islands (West Indies): Trinidad and Tobago.

Figures

FIGURES 11–12. Grotea delicator (Thunberg 1822) (Holotype), 11 Habitus, (lateral view); 12 Habitus (dorsal view).

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

FIGURES 15–16. Grotea delicator (Thunberg 1822) (Grotea lineata (Brulle 1846) Holotype), 15 Habitus (dorsal view); 16 Habitus (lateral view) & data label.

FIGURES 17–18. Grotea delicator (Thunberg 1822) (Grotea lineata (Brulle 1846) Paratype), 17 Habitus (lateral view); 18 Habitus (dorsal view) & data label.