Cyoceraphron njano, 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 : 327-330

Cyoceraphron njano sp. nov.

urn:lsid:zoobank.org:act:A5F4A50B-232D-4BB2-9B70-F123DEAE1DEF

Fig. 95

Diagnosis

Legs yellowish except coxae darker; fore wing at proximal part and at proximal half of stigmal vein less melanized; F6 2.2× as long as wide; maximum eye diameter 1.19 × minimum eye diameter. Male genitalia: harpe cone-shaped in ventral and dorsal view; harpe/gvc index 0.67; dorsomedial margins of harpes almost touching at distodorsal margin of gvc, dorsomedial margin of harpe straight from base to apex, apex of harpe rounded, slightly oriented distolaterally.

Etymology

The species name is derived from the Swahili word ‘ njano ’ which means ‘yellow’, with reference to the yellowish body colouration.

Material examined

Holotype

KENYA • ♂; Western Province, Kakamega Forest; 00°07′40.8 N, 34°50′24 E; 1656 m a.s.l.; 12 Aug. 2008; F. Hita Garcia leg.; Transect 30; primary rain forest; Winkler leaf litter extraction; ZFMK; ZFMK- HYM-00037000 .

Description

Male

BODY LENGTH. 0.85 mm.

COLOUR. Head light brown-yellowish, mesosoma light brown-yellowish, metasoma yellowish; scape and pedicel yellowish, flagellum light brown, gradually darkening from F1 to F9; legs yellowish except coxae darker; fore wing venation light brown, fore and hind wing disc slightly melanized, fore wing at proximal part and at proximal half of stigmal vein less melanized.

ANTENNA. 11-segmented, flagellomeres cylindric; scape 3.3× as long as pedicel, scape longer than F1 and F2 combined, F1 2.3× as long as wide, F1 1.5× as long as pedicel, F1 1.2× as long as F2, F1 shorter than F7 and F8 combined, F1 shorter than F9, F6 2.2 × as long as wide, F6 shorter than F7 and F8 combined, F6 1.1× as high as F9; numerous small multiporous plates on flagellomeres, sensillae on flagellomeres sickle-shaped and slightly shorter than width of flagellomeres.

HEAD. Head width 1.03 × head height; head width 1.95 × interorbital space; maximum eye diameter 1.19 × minimum eye diameter; head height 1.60 × maximum eye diameter. Dorsal margin of occipital carina ventral to dorsal margin of lateral ocellus in lateral view; preoccipital furrow indistinct; preoccipital carina present. OOL:POL:LOL 1.00:0.71:0.68; OOL 1.75 × lateral ocellus size. White, thick setae on upper face absent; supraclypeal depression present; lateral margin of torulus raised; intertorular carina indistinct; posterolateral processes of gena absent.

MESOSOMA, METASOMA. Mesosoma compressed laterally. Head width 1.08 × mesosoma width; Weber length 300 µm. Mesoscutum densely setose, setae curved backwards; median mesoscutal sulcus present; median mesoscutal sulcus adjacent to transscutal articulation; interaxillar sulcus present (= scutoscutellar sulcus not adjacent to transscutal articulation), scutoscutellar sulcus straight; dorsal axillar area setose, setae curved backwards; mesoscutellum setose, setae curved backwards or straight. Mesoscutum width 1.94 × mesoscutellum width; posterior mesoscutal width 1.44 × mesoscutellum width; mesoscutellum length 1.78× mesoscutellum width; mesoscutellum length 1.23 × posterior mesoscutal width; Weber length 1.37 × mesoscutum width; Weber length 1.50 × mesoscutellum length. Anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex curved in lateral view with blunt and lighter end, extending to end of mesosoma; mesometapleural sulcus absent; posterior propodeal projection straight and light in ventrolateral view; posterior mesosomal comb distinct. Basal transverse carina of petiole (on syntergum) present; at least six, basal longitudinal carinae on syntergum; translucent patches on metasoma absent.

FORE WING. Length 3.18 × width; stigmal vein longer than 3× pterostigma marginal length.

MALE GENITALIA. Genital length 88 µm; Weber length 3.43 × genital length; gvc width 44 µm; genital length 2.00× gvc width; gvc width more than three quarters of gvc length; gvc width 1.12 × distal gvc width. Proximodorsal margin of gvc straight; distodorsal margin of gvc slightly descending proximomedially ( Fig. 95C ); proximoventral margin of gvc convex; distoventral margin of gvc indistinct ( Fig. 95A ); ventral area of gvc slightly convex; dorsal area of gvc straight ( Fig. 95B ), slightly indented distomedially; proximolateral margin of gvc descending ventrally; distolateral margin of gvc indistinct ( Fig. 95B ). Harpe cone-shaped in ventral and dorsal view; harpe/gvc index 0.67; lateral articulation site of harpe with gvc virtually flush ( Fig. 95A, C ); ventral margin of harpe straight, dorsal margin straight ( Fig. 95B ), lateral margin slightly concave, widest point of harpe at lateral articulation site with gvc ( Fig. 95A, C ); dorsomedial margins of harpes almost touching at distodorsal margin of gvc, dorsomedial margin of harpe straight from base to apex ( Fig. 95C ), apex of harpe rounded, slightly oriented distolaterally ( Fig. 95A, C ). Harpe with at least one lateral seta restricted to apical quarter, longest lateral seta one quarter as long as harpe, lateral seta oriented distolaterally and distoventrally; harpe with at least two apical setae, longest apical setae more than one quarter as long as harpe, apical setae oriented distomedially and distoventrally; harpe with at least two median setae restricted to apical quarter, longest median setae less than one quarter as long as harpe, median setae oriented distomedially and distoventrally. Aedeagus + gonossiculus slightly less than as long as harpe, apex of aedeagus + gonossiculus indistinct ( Fig. 95A, C ) and ventral to apex of harpe. Genitalia weakly sclerotized, almost transparent.

Female

Unknown.

Variation

Unknown.

Biology

Host unknown, specimen collected from leaf litter.

Distribution

Afrotropical: Kenya.

Remarks

Comparison with similar species

See remarks under Cyoceraphron invisibilis sp. nov. and Ceraphron cingulum sp. nov.

Condition of type material

In the holotype, the right F4 to F9 and the tarsal segments 3 to 5 of the right hind leg are missing. The posterior part of the metasoma is missing, thus the body length measurement is not precise.

Figures

Fig. 95. Holotype of Cyoceraphron njano sp. nov. (ZFMK-HYM-00037000). A–C. Male genitalia in ventral (A), lateral (B) and dorsal (C) views. D. Habitus in lateral view.