Ipodoryctes (Afroipodoryctes), 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 : 49-50

Subgenus Afroipodoryctes subgen. nov.

urn:lsid:zoobank.org:act:36CDE5C4-B0FF-4939-BA6C-1C985F9F8846

Type species

Ipodoryctes insignis Granger, 1949 .

Etymology

From combination of the words “Africa” and the generic name “ Ipodoryctes ”, since members of this subgenus were only recorded in the African continent.

Description ( Figs 16–21 )

HEAD. Head transverse. Ocelli arranged in weakly obtuse triangle with base weakly larger than its sides. Eyes glabrous. Occipital carina incomplete, obliterate below and not joining ventrally with hypostomal carina at short distance. Malar suture absent. Hypoclypeal depression medium size, subround. Postgenal bridge very narrow. Scapus of antenna more or less wide. First flagellar segment subcylindrical, almost straight, not shorter than second segment. Apical segment apically acuminate.

MESOSOMA. Mesosoma not depressed and relatively long. Pronotum dorsally weakly convex, with more or less fine pronotal carina. Mesonotum more or less highly and gently roundly elevated above pronotum; mainly smooth and glabrous. Notauli distinct, almost incomplete, smoothed posteriorly, smooth or partly finely crenulate. Prescutellar depression rather long, with several carinae. Metanotum with short and more or less pointed median tooth (lateral view). Sternaulus (precoxal furrow) rather deep, long, running along anterior 0.6–0.8 of lower part of mesopleuron. Propodeum with basolateral areas and areola distinctly delineated by carinae; lateral tubercles short.

WINGS. Wings not shortened. Pterostigma of fore wing wide. Radial vein of fore wing arising almost from middle of pterostigma. Radial (marginal) cell not shortened. Second radiomedial (submarginal) cell long. Recurrent vein (m-cu) distinctly postfurcal. Nervulus (cu-a) postfurcal. Parallel vein (CU1a) interstitial or not interstitial and arising from anterior 0.3 of distal margin of brachial (subdiscal) cell. Brachial (subdiscal) cell subvertically closed postero-apically before recurrent vein (m-cu) and with antero-posteriorly corner. In hind wing, first abscissa of mediocubital vein (M+CU) 0.4–0.5 times as long as second abscissa (1-M).

LEGS. Hind coxa without or with small basoventral tubercle. Hind femur rather wide, almost without dorsal protuberance. Hind basitarsus 0.7 times as long as second–fifth segments combined.

METASOMA. First tergite not petiolate, rather long and widened toward apex. Second tergite with narrow basal area delineated by rather distinct furrow; with lenticular apical area distinctly delineated anteriorly by deep crenulate furrow and posteriorly by second suture. Second suture deep, complete and regularly curved. Sixth tergite not or weakly enlarged, not longer than previous tergite, smooth, more or less covered following apical segments, posteriorly evenly curved, without emargination. Ovipositor sheath not longer than metasoma.

Diagnosis

This new subgenus differs from Ipodoryctes s.str. in having the hind coxa without or sometimes with indistinct basoventral tubercle; pro- and mesothorax almost entirely smooth; propodeum with areola delineated by distinct carinae, notauli smooth or almost smooth.

Composition

Ipodoryctes (Afroipodoryctes) insignis ( Granger, 1949) (AF) ; I. (A.) reunionus sp. nov.; I. (A.) saintphillipensis sp. nov.

Distribution

Afrotropical region.

Key to species of Ipodoryctes (Afroipodoryctes)

1. Mesoscutum entirely densely and distinctly granulate and almost entirely covered by short pale setae ( Figs 20F–G ). Body length 2.1–3.2 mm. La Reunion............ I. (A.) saintphillipensis sp. nov.

– Mesoscutum entirely smooth and mainly glabrous ( Figs 16C–D ; 18H–I ) ....................................... 2

2. Areola of propodeum narrow ( Fig. 16C ). Brachial (subdiscal) cell of fore wing apically closed before recurrent vein (m-cu); parallel vein (CU1a) of fore wing interstitial ( Fig. 17A ). Hind femur yellow basally and dark reddish brown in posterior 0.6 ( Fig. 16 CB. First metasomal tergite narrow and long, its length 1.6 times apical width. Second metasomal suture evenly curved ( Fig. 17B ). Body length 4.0 mm. Madagascar.................................................... I. (A.) insignis ( Granger, 1949)

– Areola of propodeum wide ( Fig. 18H ). Brachial (subdiscal) cell of fore wing apically closed behind recurrent vein (m-cu); parallel vein (CU1a) of fore wing often arising from anterior 0.2–0.3 of distal margin of brachial (subdiscal) cell ( Fig. 19A ). Hind femur almost entirely pale brown to yellow ( Fig. 18J ). First metasomal tergite wide and short, its length 1.0–1.2 times its apical width. Second metasomal suture sinuate ( Figs 19B, D ). Body length 3.1–4.3 mm. La Reunion...................................................................................................... I. (A.) reunionus sp. nov.

Figures

Fig. 16. Ipodoryctes (Afroipodoryctes) insignis (Granger, 1949), ♀, holotype, MNHM. A. Habitus, lateral view. B. Hind leg, lateral view. C. Mesosoma, dorsal view. D. Mesosoma, lateral view. E. Metasoma, dorsal view.

Fig. 17. Ipodoryctes (Afroipodoryctes) insignis (Granger, 1949), ♀, holotype, MNHM. A. Wings. B. First to third metasomal tergites, dorsal view. C. Apical metasomal tergites, dorsal view. D. Metasoma and ovipositor, lateral view.

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.

Fig. 20. Ipodoryctes (Afroipodoryctes) saintphilippensis sp. nov., ♀, holotype, MNHM. A. Habitus, lateral view. B. Head and mesoscutum, dorsal view. C. Head, front view. D. Head and basal segments of antenna, lateral view. E. Apical segments of antenna. F. Mesosoma and first metasomal tergite, dorsal view. G. Head and mesosoma, lateral view. H. Hind coxa and femur. I. Hind tibia.

Fig. 21. Ipodoryctes (Afroipodoryctes) saintphilippensis sp. nov., ♀, holotype, MNHM. A. Wings. B. Metasoma, dorsal view. C. Metasoma, lateral view.