Bracon (Osculobracon) pelliger rumezensis Samartsev & Zargar, 2020

Zargar, Mohammad, Samartsev, Konstantin, Talebi, Ali Asghar & Farahani, Samira, 2020, Study of the genus Bracon Fabricius, 1804 (Hymenoptera: Braconidae) from Iran new subspecies, new records and an updated checklist, Zootaxa 4758 (2), pp. 201-230 : 203-206

Bracon (Osculobracon) pelliger rumezensis Samartsev & Zargar ssp. n.

( Figs 2 D–F, 3A–E)

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Type material. Holotype: ♀ ( ZISP), Iran, Khuzestan, Ramhormoz, Gharabad , (30°59′37.73″N, 49°46′50.63″E, 126 m), 4–18.v.2016, Malaise trap in olive orchards, leg. M. Zargar.

Description (female)

Body length 2.2 mm, fore wing length 2.4 mm.

Head. Width of head (dorsal view) 2.0× as long as its median length; transverse diameter of eye (dorsal view) 2.0× longer than temple; eyes with sparse, short setae; OOL 2.2× OD; POL 1.4× OD; OOL 1.6× POL; frons without medio-longitudinal groove; longitudinal diameter of eye in lateral view 1.4× larger than its transverse diameter; transverse diameter of eye (lateral view) 1.9× longer than minimum width of temple; hind margins of eye and temple hardly broadened downwards; face width 1.5× longer than combined height of face and clypeus, 2.7× larger than width of hypoclypeal depression; longitudinal diameter of eye 3.1× longer than malar space (front view); malar space 0.83× shorter than base of mandible; malar suture deep and smooth; width of hypoclypeal depression as large as distance from depression to eye; clypeus flattened, without protruding ventral rim, height of clypeus 0.45× as long as width of hypoclypeal depression; maxillary palp as long as eye height; antenna as long as fore wing, with 24 antennomeres; first flagellomere 3.4× longer than its apical width, 1.2× longer than second flagellomere; penultimate flagellomere 2.4× longer than wide.

Mesosoma. 1.4× longer than its maximum height; transverse pronotal sulcus smooth, medially shallow; mesoscutum 1.2× wider than its median length (dorsal view); notauli deep anteriorly, smoothened posteriorly; scutellar sulcus smooth, 0.05× as long as scutellum; mesepimeral and metapleural sulci smooth; mesopleural pit weak, furrow-like.

Wings. Fore wing 2.6× longer than its maximum width, 1.1× longer than body; pterostigma 2.8× as long as wide; vein r arising from basal 0.4 of pterostigma; vein 1-R1 0.77× as long as pterostigma; marginal cell 0.85× as long as distance from its apex to apex of wing; vein 3-SR 1.9× longer than vein r, 0.46× as long as vein SR1, 0.98× as long as vein 2-SR; vein 1-M 0.88× as long as vein 1-SR+M, 1.8× as long as vein m-cu; vein 2-SR+M 0.16× as long as vein 2-SR, 0.28× as long as vein m-cu; vein 1-SR+M almost straight; vein 1-CU1 (posterior margin of discal cell) 2.9× longer than vein cu-a; vein cu-a interstitial.

Legs. Hind femur 4.3× longer than width; hind tibia 1.5× longer than hind femur, its inner spur 0.28× as long as hind basitarsus; hind tarsus as long as hind tibia; fifth segment (without pretarsus) of hind tarsus 0.38× as long as hind basitarsus, 0.65× as long as second segment; basal lobes of claws with small angular lobes.

Metasoma. 1.3× longer than mesosoma; median length of first tergite (measured from petiolar tubercle) 1.7× larger than its apical width; median area of first tergite separated by smooth furrow, 0.79× as wide as apical width; second tergite medially 0.50× as long as third tergite, 0.86× as large as apical width of first tergite; anterolateral margin of second tergite largely desclerotized; suture between second and third tergites deep but thin, weakly curved and smooth; apical margins of third to sixth tergites largely desclerotized; ovipositor sheath 0.23× as long as fore wing; apex of ovipositor with weak nodus and notch and with ventral serration.

Sculpture and colour. Body completely smooth and mainly yellow. Antenna, patches on clypeus and gena, propleuron, metanotum, median parts of propodeum and metasomal tergites, middle tarsus distally and apex of hind tibia and most of hind tarsus brownish. Malar space, face near toruli, maxillary palps and desclerotized parts of metasoma pale yellow. Pterostigma pale brownish-yellow with yellowish-brown patch apically; wing with yellowish-brown veins and weakly darkened membrane.

Male. Unknown.

Etymology. The name refers to the type locality Ramhormoz situated in the Khuzestan province. The place is popular amongst the natives by the name “Rumez”.

Differential diagnosis. Bracon (O.) pelliger rumezensis ssp. n. differs from the nominative subspecies by the characters listed in the key below (by their relevance).

1. Longitudinal diameter of eye 3.1× longer than malar space (front view; Fig. 3C ). Width of head (dorsal view) 4.2× larger than apical width of first metasomal tergite ( Fig. 3B ). Hind femur 4.3× longer than wide. Transverse diameter of eye 2.0× longer than temple (dorsal view; Fig. 3B ). Frons without medio-longitudinal groove. Fifth segment of hind tarsus (without pretarsus) 0.38× as long as hind basitarsus. Body length 2.2 mm ....................................................... Bracon pelliger rumezensis ssp. n.

–. Longitudinal diameter of eye 2.4–2.6× longer than malar space (front view; Fig. 1D ). Width of head (dorsal view) 3.0–3.3× larger than apical width of first metasomal tergite. Hind femur 3.4–3.6× longer than wide. Transverse diameter of eye 1.65–1.75× longer than temple (dorsal view; Fig. 1B ). Frons with more or less deep medio-longitudinal groove; fifth segment of hind tarsus (without pretarsus) about 0.46× as long as hind basitarsus. Body length 2.3–2.7 mm ......................... .. Bracon pelliger pelliger Tobias, 1961

Figures

FIGURE 1. Bracon (Osculobracon) pelliger pelliger Tobias, 1961, Holotype: A. Habitus, lateral view; B. Head, dorsal view; C. Mesosoma, dorsal view; D. Head, frontal view; E. Head, anterolateral view; F. Head, lateral view.

FIGURE 2. A–C. Bracon (Osculobracon) pelliger pelliger Tobias, 1961, Holotype, D–F. Bracon (Osculobracon) pelliger rumezensis Samartsev & Zargar ssp. n., Holotype: A, D. Fore wing; B, E. Hind wing; C, F. Metasoma, dorsal view.

FIGURE 3. Bracon (Osculobracon) pelliger rumezensis Samartsev & Zargar ssp. n., Holotype: A. Habitus, lateral view; B. Head and mesosoma, dorsal view; C. Head, frontal view; D. Head, anterolateral view; E. Head, lateral view.