Rhysipolis (Granulopolis) simutniki, Belokobylskij & Manukyan, 2024

Belokobylskij, Sergey A. & Manukyan, Andranik R., 2024, First reliable fossil record of the subfamily Rhysipolinae (Hymenoptera: Braconidae): a new subgenus and species of the genus Rhysipolis Foerster, 1863 from Baltic amber, Zootaxa 5448 (4), pp. 591-600 : 594-598

Rhysipolis (Granulopolis) simutniki Belokobylskij, sp. nov.

urn:lsid:zoobank.org:act:29757D27-FD9C-4093-B580-CEA17CE4C6B1

Figs 1 , 2

Type material. Holotype: female, # 9/24.1 (KAM).

Type locality and horizon. Baltic amber; Late Eocene , Prussian Formation , Priabonian range (33.9–37.2 Mya). Southeast coast of the Baltic Sea, Primorskiy quarry, Yantarnyi, Kaliningrad Province, Russia .

Etymology. This species named in honour of Dr Serguei A. Simutnik, well-known palaeochalcidologist, our friend and colleague.

Description. Female. Body length 2.4 mm; fore wing length 2.5 mm.

Head. Head (subdorsal view) 1.5 × wider than medial length, 1.2 × wider than mesoscutum medially. Head (front view) 1.2 × wider than maximum height. Ocelli arranged in triangle with base large than sides. Temple long, transverse diameter of eye (lateral and subdorsal views) 1.1–1.2 × longer than temple. Eye ~ 1.5 × as high as broad (lateral view). Face weakly convex, its width 1.3 × medial height with clypeus, equal to maximum diameter of eye. Distance between antennal sockets 1.3 × longer than diameter of socket, diameter of socket almost 2.0 × larger than distance from margin of socket to margin of eye. Distance between tentorial pits 1.6 × distance from pit to inner margin of eye. Clypeal suture indistinct. Hypoclypeal depression subround, its diameter 1.1 × distance from margin of depression to inner margin of eye. Malar space 0.3 × height of eye. Maxillary palp long.

Antenna. Antenna with 24 antennomeres, slender, filiform, with sparse and distinct rhinaria on visible parts of antennomeres, weakly longer than body. Scape long, 1.5 × longer than maximum width, and 2.2 × longer than wide pedicel. First flagellomere 3.2–3.4 × longer than its maximum width, 1.1 × longer than second flagellomere. Penultimate flagellomere approximately 3.0 × longer than its maximum width, 1.1 × longer than apical flagellomere.

Mesosoma. Mesosoma long, ~ 2.0 × longer than its maximum height. Mesoscutum 0.9 × as long as maximum width. Median lobe of mesoscutum weakly protruding forward. Notauli complete and crenulate, fused posteriorly with distinct, but short median furrow. Prescutellar depression long, with distinct medial carina, smooth or weakly rugulose at most part. Scutellum 0.9 × as long as maximum anterior width. Subalar depression shallow and wide, at least partly rugose-reticulate. Precoxal sulcus distinct, relatively narrow, crenulate. Meso-metapleural suture distinct, sparsely crenulate. Precoxal sulcus indistinct. Propodeum rather gently sloping posteriorly.

Wings. Fore wing wide, 2.6 × longer than its maximum width. Pterostigma ~ 4.0 × longer than its width. Radial vein (r) arising weakly before middle of pterostigma. First (r) and second (3RSa) radial abscissae forming distinct obtuse angle; first abscissa (r) 0.6 × as long as maximum width of pterostigma. Second radial abscissa (3RSa) 3.6 × longer than first abscissa (r), 0.5 × as long as the straight third abscissa (3RSb), 1.1 × longer than the straight first radiomedial vein (2RS). Second radiomedial (submarginal) cell wide and relatively long, weakly narrowed distally, 2.3 × longer than its maximum width, 1.8 × longer than brachial (first subdiscal) cell. Recurrent vein (1m-cu) weakly antefurcal, 0.6 × as long as first radiomedial vein (2RS). Discoidal (first discal) cell rather short and wide, 1.6 × longer than its maximum width. Distance (1-CU1) between basal vein (1-M) and nervulus (cu-a) about equal nervulus (cu-a) length. Brachial (second subdiscal) cell distinctly widened distally, 2.7 × longer than maximum width. Hind wing ~ 5.0 × longer than its maximum width.

Legs. Hind coxa ~ 1.8 × longer than wide. Hind femur widened, ~ 4.0 × longer than its width. Hind tibia weakly widened towards apex, 1.6 × longer than hind femur. Hind tarsus 0.85 × as long as hind tibia. Hind basitarsus 0.6 × as long as second-fifth segments combined; second tarsal segment 0.4 × as long as basitarsus, almost as long as fifth segment (without pretarsus).

Metasoma. Metasoma 0.9 × as long as head and mesosoma combined; tergites posterior to first tergite well sclerotised and distinctly protruding; second tergite without separated laterotergites; spiracles situated on the border of the dorsal and lateral surfaces of second and third tergites, and near middle of lateral surface of fourth and following tergites. First metasomal tergite rather long, 0.7 × as long as second and third tergites combined, about as long as propodeum; with distinct dorsope. Acrosternite of first segment weakly elongated, about 0.4 × as long as tergite. Suture between second and third tergites absent, lateral surfaces of these tergite distinctly separated (lateral view). Second tergite almost as long as third tergite. Ovipositor sheath about 0.5 × as long as mesosoma, 0.9 × as long as hind tibia, and 0.25 × as long as fore wing.

Sculpture and pubescence. Head mainly smooth; face mainly smooth, transverse striate only medially. Mesoscutum and scutellum weakly and densely granulate. Mesopleuron mainly smooth, but finely granulate marginally. Propodeum at least partly rugulose-reticulate, with relatively long basal medial carina. Hind coxa mainly smooth; hind femur entirely smooth. First metasomal tergite coarsely striate with rugosity. Second and following tergites entirely smooth. Mesoscutum entirely covered by dense short setae. Hind tibia with sparse short setae. Ovipositor sheaths relatively densely setose.

Colour. Body including antennae and legs dark brown to black partly. Palpi yellow. Fore wing hyaline. Pterostigma entirely light brown.

Male. Unknown.

Figures

FIGURE 1. Rhysipolis (Granulopolis) simutniki subgen. et sp. nov. (holotype, female, Baltic amber, # 9/24.1). (A) Habitus, lateral view. (B) Head and anterior half of mesosoma, ventro-lateral view. (C) Basal antennomeres of antenna, front view. (D) Apical flagellomeres of antenna (E) Head and mesosoma, ventro-lateral view. (F) Head and mesosoma, dorsal view. (G) Head, front view. (H) Hind leg, lateral view. (I) Ovipositor and sheaths, lateral view.

FIGURE 2. Rhysipolis (Granulopolis) simutniki subgen. et sp. nov. (holotype, female, Baltic amber, # 9/24.1). (A) Habitus, dorsal view. (B) Wings. (C) Metasoma and ovipositor, lateral view.