Epitranus subinops Soliman & Gadallah, 2020

Gadallah, Neveen S., Soliman, Ahmed M. & Dhafer, Hathal M. Al, 2020, First record of the subfamily Epitraninae from Saudi Arabia (Hymenoptera, Chalcidoidea, Chalcididae), with the description of three new species, ZooKeys 979, pp. 35-86 : 35

publication ID	https://dx.doi.org/10.3897/zookeys.979.52059
publication LSID	lsid:zoobank.org:pub:2B5B9363-B75C-4392-A23A-78186989B7F3
persistent identifier	https://treatment.plazi.org/id/EDF024B1-4346-44E6-A08E-DAC73BC1CCB8
taxon LSID	lsid:zoobank.org:act:EDF024B1-4346-44E6-A08E-DAC73BC1CCB8
treatment provided by	ZooKeys by Pensoft
scientific name	Epitranus subinops Soliman & Gadallah
status	sp. nov.

Treatment

Epitranus subinops Soliman & Gadallah sp. nov. Figures 10 View Figure 10 , 11 View Figure 11 , 12 View Figure 12 , 13 View Figure 13

Type material.

Holotype ♀: Kingdom of Saudi Arabia, Asir, Regal Alma, Wadi Kasan (2 km North of El-Hebeal) [18°6'59.89"N, 42°13'54.92"E, Alt. 487 m], sweeping net, 12.IV.2019, leg. Ahmed M. Soliman [KSMA].

Diagnosis.

Frontal lobe relatively long, its free margin trilobate (Fig. 11B View Figure 11 ); OOL ca. 1.5 × as long as OD, and as long as AOL (Fig. 11C View Figure 11 ); POL 2.4 × as long as OOL (Fig. 11C View Figure 11 ); interantennal projection well developed (lamellate) (Fig. 11B View Figure 11 ); scape ends a long distance from median ocellus (Fig. 11A View Figure 11 ); F1 relatively long, 1.75 × as long as wide, following flagellomeres shorter, subequal (Fig. 11D View Figure 11 ); clava bi-segmented, relatively long ca. 2.7 × as long as wide, tapering apically (Fig. 11D View Figure 11 ); frons with supra antennal surface delimited by step-like margin; frons sparsely punctured, with fine setae directed upwards, integument smooth behind (Fig. 11A View Figure 11 ); post-orbital carina joining genal carina at a level distinctly above the ventral edge of the eye (Fig. 12B View Figure 12 ); pronotal humeral angle rather sharp (Fig. 11C View Figure 11 ); mesoscutum with short setae and very sparse small punctures on anterior third of middle lobe (Fig. 11E View Figure 11 ); bottom of punctures on mesonotum and metepimeron smooth (Figs 11E View Figure 11 , 12B View Figure 12 ); propodeum densely areolate, median areola complete (Fig. 12A View Figure 12 ); metafemur serrulate ventrally following a stout tooth at base (Fig. 13A, B View Figure 13 ); metatibia with oblique carina inside metatibial process (Fig. 13B View Figure 13 ); tarsal scrobe almost reaching sub-basal prominence (Fig. 13B View Figure 13 ); fore wing densely setose along apical two thirds (Fig. 12C View Figure 12 ); STV present but reduced, 2.0 × as long as wide (Fig. 12C View Figure 12 ).

Description.

Female (holotype). Body length 3.4-3.9 mm. Fore wing length 2.1-2.5 mm.

Head (Figs 11A-C View Figure 11 , 12B View Figure 12 ). Transverse (1.16 × as wide as high in frontal view), slightly wider than mesoscutum in dorsal view (1.1 ×), and ca. 2.45 × as wide as its length in profile. Frontovertex 1.25 × as wide as eye height. Vertex almost smooth, sparsely punctate between median ocellus and eyes, with AOL as long as OOL; OOL 1.5 × OD; POL 2.4 × OOL; orbital surface superficially transversely alutaceous, laterally with fine sparse setae directed upwards; malar area superficially wrinkled; malar space 0.57 × as long as eye height in lateral view; malar carina faint and polished; gena coarsely foveolate, nearly bare; post-orbital carina well developed, joined genal carina at a level distinctly above the ventral edge of the eye, distinctly converging to the higher edge of the eye; preorbital and suborbital carinae developed. Occipital area densely reticulate; interantennal distance distinctly short, 0.4 × as long as torulus diameter, interantennal projection well developed (lamellate); frontal lobe relatively long (subantennal distance 3.3 × as long as interantennal distance), free margin with three lobes.

Antenna (Fig. 11D View Figure 11 ). 13-segmented, clava bi-segmented, with few scattered short setae; scape moderately long, longer than eye height (1.33 ×), ending a distance before median ocellus, densely punctured throughout; pedicel relatively short, conical shape, approximately as long as its width; anellus transverse, ca. 0.6 × as long as wide; F1 relatively long, 1.75 × as long as wide, following funiculars distinctly shorter, subequal; clava ca. 2.7 × as long as wide, tapered apically.

Mesosoma (Figs 11E View Figure 11 , 12A, B View Figure 12 ). 1.8 × as long as mesoscutum width, with relatively short setae, that are somewhat thickened on pronotum and mesoscutellum. Pronotal collar 3.0 × as wide as long, sparsely setiferous foveolate, that are denser laterally, with sides slightly convex; humeral angle sharp, nearly 90°; lateral carina not extended dorsally on collar. Mesoscutum 2.9 × as long as pronotal collar median length, sparsely finely punctulate on anterior half of middle lobe, its anterior margin finely alutaceous; posterior half of middle lobe with large irregular foveolae, lateral lobes with dense setiferous punctures. Notauli very distinct and deep, linear (not crenulate). Tegula broadly rounded posteriorly, smooth. Mesoscutellum slightly longer than wide (1.1 ×), setiferous foveolate, foveolae smooth on bottom, with posterior margin broadly rounded. Propodeum strongly areolate, median areola slightly widened posteriorly, 2.6 × as long as wide, weakly transversely striated on bottom, its lateral carinae slightly diverging posteriorly and reaching transverse carina of adpetiolar areola; submedian and basolateral areolae fused. Mesopleuron with adscrobal area coarsely foveolate, foveolae finely punctate inside; femoral scrobe coarsely transversely ridged, ventral shelf of mesepisternum finely punctate, with adpressed setae. Metepimeron densely, closely foveolate throughout, with fine, adpressed setae; metepisternum largely areolate throughout (bottom of areolae densely reticulate), with two median carinae slightly diverging posteriorly followed by two large and sharp submedian teeth; adpetiolar area concave, nearly smooth, with a median longitudinal carina ends posteriorly with a strong subpentagonal areola.

Wings (Fig. 12C View Figure 12 ). Fore wing ca. 3.0 × as long as wide, rather densely setose on the underside of apical two-thirds, setae distinctly long; MV 0.6 × as long as costal cell; STV somewhat reduced (0.1 × as long as MV), 2.0 × as long as wide, forming with anterior margin an angle of ca. 45°. Hind wing sparsely setose apically, with three hamuli.

Hind leg (Figs 10C View Figure 10 , 13A, B View Figure 13 ). Metacoxa 2.2 × as long as wide, widened basally, slightly shorter than metafemur (0.9 ×), finely transversely alutaceous on outer dorsal face, rest densely setiferous punctulate, interspaces between punctures smooth. Metafemur 1.75 × as long as wide, with dense setiferous punctures throughout, outer ventral margin with broad triangular tooth basally, followed by a serrulation of minute teeth. Metatibia with an oblique carina inside metatibial process; tarsal scrobe almost reaching sub-basal prominence; sub-basal prominence is formed from three small blunt teeth partly hidden by dense pubescence.

Metasoma (Figs 10A, B View Figure 10 , 12A View Figure 12 , 13C View Figure 13 ). Petiole relatively short, 3.5 × as long as wide, 0.92 × as long as dorsal length of Gt1, and ca. 0.6 × as long as gaster, with an incomplete median carina (0.45 × as long as petiole length), two incomplete submedian carinae (0.73 × as long as petiole length), and two complete lateral ridge, area between sublateral ridges nearly smooth and shiny. Gaster fusiform in dorsal view, 1.55 × as long as its height in profile. Gt1 0.6 × as long as the whole length of gaster in dorsal view, deeply concave posteriorly, almost entirely smooth; remaining tergites short, densely finely punctate at base, finely setose. Gt2 slightly concave posteriorly. Ovipositor slightly extended behind gaster.

Color (Figs 10A-C View Figure 10 , 12C View Figure 12 ). Body generally reddish to reddish brown, with the following parts black: head (except lateral sides just below lower edge of eyes, and frontal lobe), anterior margin of mesoscutum middle lobe, propodeum (except postero-lateral margins). Metasoma dark reddish brown; antenna with scape and pedicel bright red, rest reddish brown; tegula testaceous. Wings hyaline with yellowish brown veins that are paler on hind wing.

Remarks.

The new species closely similar to E. inops , but differs in the following: metatibia with oblique carina inside metatibial process (Fig. 13B View Figure 13 ) (metatibia without such carina in E. inops (Fig. 27C View Figure 27 )); tarsal scrobe almost reaching sub-basal prominence (Fig. 13B View Figure 13 ) (tarsal scrobe short, far from reaching sub-basal prominence in E. inops (Fig. 27C View Figure 27 )); frons with supra antennal surface completely delimited by a step-like margin (Fig. 11A View Figure 11 ) (supra antennal surface delimited only laterally by faint step-like ridge in E. inops (Fig. 26A View Figure 26 )); mesoscutum with short, very small and sparse punctures on anterior part of middle lobe, while posterior area with coarse irregular foveolation (Fig. 11E View Figure 11 ) (setae on mesoscutum longer, denser and coarser on the whole middle lobe in E. inops (Fig. 25B View Figure 25 )); mesoscutellum convex when seen in profile (Fig. 10A View Figure 10 ) (flat in E. inops (Fig. 25A View Figure 25 )).