Ipodoryctes (Afroipodoryctes) reunionus, Belokobylskij & Zaldívar-Riverón, 2021

Belokobylskij, Sergey A. & Zaldívar-Riverón, Alejandro, 2021, Reclassification of the doryctine tribe Rhaconotini (Hymenoptera, Braconidae), European Journal of Taxonomy 741, pp. 1-168 : 54-58

Ipodoryctes (Afroipodoryctes) reunionus sp. nov.

urn:lsid:zoobank.org:act:424A57AA-E3B9-43DA-B76D-8CABA2B7CFD1

Figs 18–19

Etymology

The name of this species refers to the Réunion Island, where the type material was collected.

Material examined

Holotype REUNION • ♀; “La Reunion, ML 221 350 m, Saint Philippe”, “Mare Longue, 25.IX/01.X.2001, Attie Marc leg”, “forêt primaire, piege Malaise, au sol site 2”, “RUS44 [= Jo932]”; MNHM.

Paratypes REUNION • 1 ♀; “La Reunion, PF 258 780 m, Sainte Suzanne”, “forêt Dugain, 25.XI/01.XII.2001, Attie Marc leg”, “piege Malaise, au sol dans taillis de Psidium cattleianum”; MNHM • 1 ♂; “ La Reunion, A Sainte-Suzanne ”, “forêt Dugain , 780 m ”, “taillis de Psidium cattleianum, 16/22.II. 2001”, “piege Malaise, au sol, Attie Marc leg”; MNHM • 1 ♂; “ La Reunion, ML 284 350 m, Saint Philippe ”, “ Mare Longue , 18/24.XI. 2001, Attie Marc leg”, “forêt primaire, piege Malaise, suspendu site 1”; ZISP .

Description

Female

MEASUREMENTS. Body length 3.1–4.3 mm; fore wing length 2.6–3.3 mm.

HEAD. Head width 1.4–1.6 times its median length, 1.1 times width of mesoscutum. Head behind eyes (dorsal view) distinctly and roundly narrowed. Transverse diameter of eye 1.7–2.0 times as long as temple. Ocelli small, arranged in almost equilateral triangle; POL 1.2–1.6 times OD, 0.4–0.5 times OOL. Eye weakly emarginated opposite antennal sockets,1.15–1.20times as high as broad.Malar space 0.3times height of eye, 0.7–0.8 times basal width of mandible. Face width 0.9 times eye height and 1.1–1.2 times height of face and clypeus combined.Upper margin of clypeus situated distinctly higher than lower level of eyes.Width of hypoclypeal depression about 1.1times distance from depression to eye,0.45 times width of face.Vertex convex.Head below eyes(front view)strongly and almost linearly or weakly roundly narrowed. Antennae slender, weakly filiform, 26–33-segmented, about 1.2 times as long as body. Scapus 1.4–1.6 times as long as its maximum width, 2.0–2.5 times length of pedicel. First flagellar segment 4.0–4.5 times as long as its apical width, about as long as second segment. Penultimate segment 4.0–4.5 times as long as its width, about 0.8 times as long as first segment, 0.8–0.9 times as long as apical segment.

MESOSOMA. Length 2.1–2.2 times its height. Pronotal carina high, situated submedially. Mesoscutum (dorsal view) 0.8–0.9 times as long as wide. Notauli distinct in anterior half, shallow or very shallow (in holotype) in posterior half, narrow, densely crenulate only in anterior half (holotype) or entirely. Median lobe of mesoscutum distinctly convex anteriorly. Prescutellar depression with distinct median and four lateral carinae, almost smooth or weakly rugulose on rest part, weakly curved along posterior margin, 0.30–0.35 times as long as scutellum. Scutellum equal to or weakly longer than its maximum width. Subalar depression coarsely crenulate at narrow area. Sternaulus (precoxal furrow) entirely smooth. Prepectal carina below with low lobes opposite fore coxae. Metanotum dorso-medially with distinct two oblique lateral carinae. Propodeum weakly arcuately sloping backward (lateral view). Metapleural flange posteriorly with sparse long pubescence.

WINGS. Length of fore wing 3.5–3.6 times its maximum width. Pterostigma 4.0–4.5 times as long as wide. Metacarpus (1-R1) 1.2–1.3 times as long as pterostigma. Radial (marginal) cell 3.5–3.7 times as long as wide. Radial vein (r) arising from middle of pterostigma. First radial abscissa (r) forming obtuse corner with second abscissa (3-SR). Second radial abscissa (3-SR) about 3.0 times as long as first abscissa (r), 0.6 times as long as the straight third abscissa (SR1), 1.4 times as long as second radiomedial vein (r-m). Second radiomedial (submarginal) cell rather long, not widened distally, 2.8–3.0 times as long as wide, 1.4–1.5 times as long as the narrow brachial (subdiscal) cell. First medial abscissa (1-SR+M) weakly sinuate. Second abscissa of medial vein (2-SR+M) short. Recurrent vein (m-cu) 5.6–6.5 times as long as second abscissa of medial vein (2-SR+M), 0.6–0.7 times as long as first radiomedial vein (2-SR). Mediocubital vein (M+CU1) weakly or distinctly curved in apical half. Distance from nervulus (cu-a) to basal (1-M) vein 0.6–0.8 times nervulus (cu-a) length. Brachial (subdiscal) cell closed weakly or rather distinctly behind recurrent vein (m-cu); posterior bulla present but short; posterior abscissa of anal vein (2-1A) (behind brachial vein (CU1b)) present and short. Hind wing 5.2–5.5 times as long as wide. Recurrent vein (m-cu) almost straight, oblique towards base of wing, interstitial.

LEGS. Hind coxa 1.8–1.9 times as long as wide, 0.7–0.8 times as long as propodeum. Hind femur 3.2 times as long as wide. Hind tarsus 0.9 times as long as hind tibia. Hind basitarsus without keel, with dense and long pale setosity. Second segment of hind tarsus 0.4 times as long as basitarsus, almost as long as fifth segment (without pretarsus).

METASOMA. Length 1.1–1.2 times as long as head and mesosoma combined, with sixth visible tergites, remaining segments almost not protruding behind sixth tergite. First tergite distinctly, curvedly and rather evenly widened from base to apex. Maximum width of tergite 2.2–2.3 times its minimum basal width; length 1.0–1.2 times its apical width, 1.0–1.2 times length of propodeum. Basal area of second tergite 0.25–0.30 times as long as remaining part of tergite; apical area 0.8–0.9 times as long as remaining part of tergite. Median length of second tergite (with areas) 0.7 times its basal width, 1.8–2.1 times median length of third tergite. Sixth tergite not enlarged, almost straight on posterior margin, without median emargination and postero-ventral lobes. Sixth tergite 0.5–0.9 times as long as fifth tergite; fifth tergite 0.8–1.1 times as long as fourth tergites. Ovipositor sheath 0.4–0.6 times as long as metasoma, 0.7–0.9 times as long as mesosoma, 0.3–0.4 times as long as fore wing.

SCULPTURE AND PUBESCENCE. Vertex entirely and frons medially smooth, sometimes frons laterally weakly aciculate; face mainly smooth, only partly with very fine punctation and sometimes finely reticulate with striation laterally; temple smooth. Pro- and mesothorax mostly smooth, prothorax laterally with rugulose areas in large specimen; mesoscutum posteriorly with two short of long and straight carinae. Mesopleuron almost completely smooth. Propodeum mainly smooth, with large basolateral areas having fine reticulation along carinae; areola short and wide, entirely rugulose, almost as long as maximum width; median carina 1.5–2.0 times as long as anterior fork of areola. Hind legs mainly smooth, hind coxa dorsally partly rugulose. First tergite mainly striate-rugulose or reticulate-areolate with longitudinal striae, smooth on small or rather large medioapical area. Second tergite mainly smooth or partly finely coriaceous, coarsely striate on furrows and suture. Remaining tergites smooth, but fourth tergite distinctly crenulate on subbasal transverse furrow. Second and third tergites laterally distinctly and long striate-rugose. Vertex with very sparse, short and semi-erect pale setae posteriorly and laterally, glabrous on most part. Mesonotum mainly glabrous, with sparse short pale setae in medioposterior third. Mesopleuron mostly glabrous. Hind tibia dorsally with rather dense, long and short and semi-erect pale setae, its length 0.4–0.7 times as long as maximum width of tibia. Laterotergites partly glabrous and partly in rather sparsely erect pale setae.

COLOUR. Head black or dark reddish brown. Metasoma partly dark reddish brown to black, pronotum, propodeum, metapleuron and sometimes posterior part of mesopleuron reddish brown, yellowish brown to light reddish brown, propleuron sometimes reddish brown. Metasoma reddish brown, light reddish brown to partly yellowish brown, infuscate posteriorly. Antenna black or dark reddish brown, sometimes two basal segments brown with yellowish tint partly. Palps pale yellow. Legs almost entirely yellow with brownish tint. Ovipositor sheath light brown or brown in basal half and dark brown in apical half. Fore wing faintly, but distinctly and almost evenly infuscate. Pterostigma pale brown, paler basally and apically.

Male

MEASUREMENTS. Body length 2.9–3.3 mm; fore wing length 2.4–2.5 mm. Antenna 28-segmented. Legs. Hind femur wider, 2.6–2.7 times as long as wide.

METASOMA. Metasoma narrow. First metasomal tergite long and narrow, its length 1.4–1.6 times apical width; maximum width of tergite 1.6–2.0 times its minimum basal width. Basal area of second tergite weakly delineated posteriorly; apical area narrow, 0.5 times as long as remaining part of tergite. Median length of second tergite (with areas) almost equal to its basal width, 1.6–1.7 times median length of third tergite.

COLOUR. Body lighter, but legs sometimes weakly infuscate. Otherwise similar to female.

Diagnosis

This new species differs from Ipodoryctes (A.) insignis Granger by having the areola of propodeum wide (vs narrow), brachial (subdiscal) cell of fore wing apically closed behind recurrent vein (m-cu) (vs before this vein), parallel vein (CU1a) of fore wing often arising from anterior 0.2–0.3 of distal margin of brachial (subdiscal) cell (vs interstitial), hind femur entirely pale brown to yellow (vs dark reddish brown in posterior 0.6), first metasomal tergite wide, short and curved laterally (vs narrow, long and straight laterally), and second metasomal suture sinuate (vs evenly curved).

Distribution

Réunion.

Figures

Fig. 18. Ipodoryctes (Afroipodoryctes) reunionus sp. nov., ♀, holotype, MNHM. A. Habitus, lateral view. B. Head, front view. C. Head, dorsal view. D. Head, latero-posterior view. E. Head, lateral view. F. Apical segments of antenna. G. Basal segments of antenna. H. Mesosoma, dorsal view. I. Mesosoma, dorsal view. J. Hind coxa and femur. K. Hind tibia.

Fig. 19. Ipodoryctes (Afroipodoryctes) reunionus sp. nov., ♀, holotype, MNHM. A. Wings. B. First to third metasomal tergites, dorsal view. C. Apical metasomal tergites, dorsal view. D. Metasoma, dorsal view.