Procestus jatai, Herrera-Flórez & Penteado-Dias, 2021

Herrera-Flórez, Andrés Fabián & Penteado-Dias, Angelica, 2021, A new species of Procestus Townes (Hymenoptera: Ichneumonidae: Banchinae) from Brazil, Zootaxa 4941 (4), pp. 542-552 : 543-544

Procestus jatai n. sp. Herrera-Flórez & Penteado-Dias

( Figs 1–13 )

Material examined. Holotype: female, Luis Antonio, SP, Brasil ESEC de Jatai S 21º36´54” W 47º47´02” Armadilha Malaise 25.IV.2006 A.M.Penteado-Dias col. DCBU 419919 , Paratype: female, Luis Antonio, SP, Brasil ESEC de Jatai S 21º36´54” W 47º47´02” Armadilha Malaise 09. V .2007 A.M.Penteado-Dias col. DCBU 419920 .

Diagnosis. This new species of Procestus , can be recognized by the following combination of characters: epomia ending dorsally below upper edge of pronotum; posterior transverse carina absent; frons simple; metasoma mostly yellow; metapleuron mostly yellow; apical part of fore wing with a blackish spot.

Description. Female ( Fig. 1 ): Fore wing length 7.6 mm; hind wing length 5.2 mm.

Head. Malar space about 0.7 × as long as basal mandibular width ( Figs 4 & 5 ); frons simple ( Figs 2, 3 & 5 ), ocelli median, the posterior one separated from the orbit by about 0.8 × its own maximum diameter ( Figs 2 & 5 ); gena flat behind eye; occipital carina not broadened into a flange ( Fig. 1 ); antenna slender, with 41 flagellomeres.

Mesosoma. Epomia ( Figs 4 & 5 ) ending dorsally below upper edge of pronotum; mesoscutum with fine setiferous punctures over most of its surface ( Figs 4 & 5 ); mesopleuron with sparse setiferous punctures anteriorly ( Fig. 4 ); metapleuron from the middle to the upper margin with sparse setiferous punctures ( Fig. 4 ); pleural carina complete ( Fig. 4 ); propodeum without posterior transverse carina ( Figs 9 & 10 ); fore tarsal claws with slender, pale-colored pecten teeth on their basal 0.7; mid tibia with 27 small denticles on outer surface ( Fig. 8 ); fore wing with bulla in 2m-cu vein 0.8 as long as the rest of this vein ( Figs 1 & 11 ); hind wing with nervellus (composite vein first abscissa of CU&cu-a) intercepted at its center ( Fig. 12 ).

Metasoma. Metasoma with tergite I very slender ( Fig. 1 ), about 3.9 × as long as posteriorly broad; ovipositor projecting beyond apex of metasoma by about 2.4 × the length of the hind tibia ( Fig. 1 ).

Coloration ( Fig. 1 ). Head yellow with apex of mandibles brownish; central part of vertex and occiput black; antenna brown, with scape, pedicel, flagellomeres I–III yellow. Mesoscutum yellow with three longitudinal strips and a posterior blackish spot; mesopleuron yellow with two ventral blackish spots and a central brownish spot; metanotum with transverse dark brown strips, propodeum with lateral dark brown spots; fore legs yellow; mid legs yellow with tarsi dark orange; tarsomere 5 brownish; hind legs mostly orange. Metasoma tergite I–III mostly (anteriorly and posteriorly) yellow, the rest orange; tergite IV–VII orange; wings infumate with an apical brownish spot; pterostigma light brown.

Variation. Paratype: Fore wing length 6.8 mm; hind wing length 4.7 mm. Malar space about 0.5 × as long as basal mandibular width; posterior ocelli separated from the orbit by about 0.7 × its own maximum diameter. Fore tarsal claws with slender pale-colored pecten teeth on their basal 0.6; mid tibia with 21 small denticles on outer surface; fore wing with bulla in 2m-cu vein 0.6 as long as the rest of this vein. Metasoma with tergite I very slender ( Fig. 13 ), about 3.1 × as long as posteriorly broad; ovipositor projecting beyond apex of metasoma by about 2.2 × the length of the hind tibia ( Fig. 13 ).

Coloration ( Fig. 13 ). Mesosoma, specially mesopleuron and propodeum most extensively black marked.

Etymology: The name refers to the type locality (i.e. The Jataí Ecological Station).

Figures

FIGURE 13. Paratype of Procestus jatai sp. n. Herrera-Flórez & Penteado-Dias. Habitus (lateral view).

FIGURES 1–3. Holotype of Procestus jatai sp. n. Herrera-Flórez & Penteado-Dias. 1, habitus (lateral view); 2, head (frontal view); 3, detail of antennal socket (frontal view).

FIGURES 4–6. Holotype of Procestus jatai sp. n. Herrera-Flórez & Penteado-Dias. 4, part of head and mesosoma (ventrolateral view); 5, head and pronotum (semilateral view); 6, mid tibia.

FIGURES 7–12. Holotype of Procestus jatai sp. n. Herrera-Flórez & Penteado-Dias.7, detail of tibial spurs (mid leg); 8, detail of mid tibia (spines);9, propodeum (drawing); 10, propodeum (drawing); 11, fore wing (drawing); 12, hind wing (drawing).