Ceraphron nandi, Salden & Peters, 2023

Salden, Tobias & Peters, Ralph S., 2023, Afrotropical Ceraphronoidea (Insecta: Hymenoptera) put back on the map with the description of 88 new species, European Journal of Taxonomy 884 (1), pp. 1-386 : 255-259

Ceraphron nandi sp. nov.

urn:lsid:zoobank.org:act:834E960F-4619-489B-A0DE-1DAD0758890A

Fig. 73

Diagnosis

Scape, pedicel and flagellum brown; sensillae on flagellomeres distinctly shorter than width of flagellomeres; posterolateral processes of gena present; head width 2.06–2.14 × (2.10) interorbital space; OOL:LOL 2.78–3.03 (2.78). Male genitalia: harpe cone-shaped in ventral and dorsal view; harpe/gvc index 0.43; dorsomedial margins of harpes slightly converging and not touching at distodorsal margin of gvc, dorsomedial margin of harpe straight and slightly diverging distolaterally from base to apex; harpe with at least ten brush-like arranged and slightly convex median setae; harpe with at least two lateral setae restricted to apical half; dorsal area of gvc indented distomedially; genitalia moderately sclerotized with strongest sclerotization at distal half of gvc and apical aedeagus + gonossiculus and weakest sclerotization at harpe.

Etymology

The species is named after the Nandi people, an ethnic group in the south-eastern Kakamega Forest area.

Material examined

Holotype

KENYA • ♂; Western Province, Kakamega Forest; 00°19′36 N, 34°52′14.6 E; 1570 m a.s.l.; 21 Jun. 2007; F. Hita Garcia leg.; Transect 6; primary rain forest; Winkler leaf litter extraction; ZFMK; ZFMK- HYM-00036866 .

Paratypes

KENYA – Western Province • 1 ♂; Kakamega Forest; 00°21′7.9 N, 34°52′2.6 E; 1597 m a.s.l.; 2 Jul. 2007; F. Hita Garcia leg.; Transect 7; primary rain forest; Winkler leaf litter extraction; ZFMK; ZFMK- HYM-00036867 • 1 ♂; Kakamega Forest; 00°27′0.9 N, 34°50′52.9 E; 1649 m a.s.l.; 3 Jul. 2007; F. Hita Garcia leg.; Transect 8; primary rain forest; Winkler leaf litter extraction; ZFMK; ZFMK-HYM-00036868 • 1 ♂; Kakamega Forest; 00°14′6.1 N, 34°52′9.2 E; 1605 m a.s.l.; 4 Sep. 2007; F. Hita Garcia leg.; Transect 23; primary rain forest; Winkler leaf litter extraction; ZFMK; ZFMK-HYM-00036869 .

Description

Male (N = 3 in morphometric measurements)

BODY LENGTH. 1.40–1.70 mm (1.50 mm).

COLOUR. Head dark brown, mesosoma dark brown, metasoma brown; scape, pedicel and flagellum brown; legs yellowish except coxae dark brown with distal third light brown; fore wing venation light brown, fore and hind wing disc slightly melanized.

ANTENNA. 11-segmented, flagellomeres cylindric; scape 4.3× as long as pedicel, scape longer than F1 and F2 combined, F1 2.4× as long as wide, F1 1.9× as long as pedicel, F1 1.4× as long as F2, F1 shorter than F7 and F8 combined (ZFMK-HYM-00036869), F1 slightly shorter than F9 (ZFMK-HYM-00036869), F6 2.0× as long as wide, F6 shorter than F7 and F8 combined (ZFMK-HYM-00036869), F6 1.3× as high as F9 (ZFMK-HYM-00036869); numerous medium-sized multiporous plates on flagellomeres, sensillae on flagellomeres sickle-shaped and distinctly shorter than width of flagellomeres.

HEAD. Head width 1.03–1.13× (1.12) head height; head width 2.06–2.14 × (2.10) interorbital space; maximum eye diameter 1.39–1.41× (1.39) minimum eye diameter; head height 1.71–1.81 × (1.81) maximum eye diameter. Dorsal margin of occipital carina dorsal to dorsal margin of lateral ocellus in lateral view; preoccipital furrow present; preoccipital carina distinct. OOL:POL:LOL 1.00:0.43– 0.58:0.33–0.36 (1.00:0.43:0.36); OOL 2.17–2.33× (2.17) lateral ocellus diameter. White, thick setae on upper face distinct; supraclypeal depression present; lateral margin of torulus distinctly raised; intertorular carina present; posterolateral processes of gena present.

MESOSOMA, METASOMA. Mesosoma not compressed laterally. Head width 0.90–1.02× (1.02) mesosoma width; Weber length 536–600 µm (584 µm). Mesoscutum densely setose, setae curved backwards; median mesoscutal sulcus present; median mesoscutal sulcus adjacent to transscutal articulation; interaxillar sulcus absent (= scutoscutellar sulcus adjacent to transscutal articulation), scutoscutellar sulcus concave; dorsal axillar area setose, setae curved backwards; mesoscutellum setose in anterior half, setae curved backwards or straight. Mesoscutum width 1.58–1.72 × (1.58) mesoscutellum width; posterior mesoscutal width 1.35–1.64× (1.50) mesoscutellum width; mesoscutellum length 1.35–1.43× (1.40) mesoscutellum width; mesoscutellum length 0.87–1.00 × (0.93) posterior mesoscutal width; Weber length 1.34–1.54 × (1.54) mesoscutum width; Weber length 1.58–1.74 × (1.74) mesoscutellum length. Anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex curved in lateral view with blunt and lighter end, exceeding end of mesosoma; mesometapleural sulcus present; posterior propodeal projection distinct, straight in ventrolateral view; posterior mesosomal comb present. Basal transverse carina of petiole (on syntergum) present; at least six distinct, basal longitudinal carinae on syntergum; pairs of translucent patches on metasomal syntergum and synsternum.

FORE WING. Length 2.69–2.84 × (2.69) width; stigmal vein slightly longer than 3× pterostigma marginal length.

MALE GENITALIA. Genital length 213–219 µm (219 µm); Weber length 2.52–2.78 × (2.67) genital length; gvc width 94–100 µm (97 µm); genital length 2.16–2.27× (2.26) gvc width; gvc width less than two thirds of gvc length; gvc width 1.22× distal gvc width. Proximodorsal margin of gvc slightly convex; distodorsal margin of gvc slightly descending proximomedially ( Fig. 73C ); proximoventral margin of gvc slightly convex; distoventral margin of gvc descending proximomedially ( Fig. 73A ); ventral area of gvc straight or slightly convex; dorsal area of gvc slightly convex ( Fig. 73B ), indented distomedially; proximolateral margin of gvc slightly ascending and emarginated ventrally; distolateral margin of gvc descending ventrally ( Fig. 73B ). Harpe cone-shaped in ventral and dorsal view; harpe/gvc index 0.43; lateral articulation site of harpe with gvc not flush ( Fig. 73A, C ); ventral margin of harpe slightly concave, dorsal margin slightly concave ( Fig. 73B ), lateral margin straight, widest point of harpe at articulation site with gvc ( Fig. 73A, C ); dorsomedial margins of harpes slightly converging and not touching at distodorsal margin of gvc, dorsomedial margin of harpe straight and slightly diverging distolaterally from base to apex ( Fig. 73C ), apex of harpe rounded ( Fig. 73A, C ). Harpe with at least two lateral setae restricted to apical half, longest lateral setae one third as long as harpe, lateral setae oriented distolaterally; harpe with at least two apical setae, longest apical setae one third as long as harpe, apical setae oriented distomedially and distoventrally; harpe with at least ten brush-like arranged median setae, longest median setae less than one third as long as harpe, median setae slightly convex and oriented distomedially and medioventrally. Aedeagus + gonossiculus two thirds as long as harpe, apex of aedeagus + gonossiculus pointed ( Fig. 73A, C ) and ventral to apex of harpe. Genitalia moderately sclerotized with strongest sclerotization at distal half of gvc and apical aedeagus + gonossiculus and weakest sclerotization at harpe.

Female

Unknown.

Variation

Translucent patches are absent in ZFMK-HYM-00036868 and the proximodorsal margin of the gvc is slightly concave in ZFMK-HYM-00036868. The posterolateral processes of the gena are differently shaped in the paratypes.

Biology

Host unknown, specimens collected from leaf litter.

Distribution

Afrotropical: Kenya.

Remarks

Comparison with similar species

See remarks under C. chemositi sp. nov. and C. mamamutere sp. nov.

Condition of type material

In the holotype, left F7–F9 and right F8 and F9 and the right hind wing are missing. The posterior part of the metasoma is missing, thus the body length measurement is not precise.

Figures

Fig. 73. Holotype of Ceraphron nandi sp. nov. (ZFMK-HYM-00036866). A–C. Male genitalia in ventral (A), lateral (B) and dorsal (C) views. D. Habitus in lateral view.