Aphanogmus kakamegaensis, 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 : 35-38

Aphanogmus kakamegaensis sp. nov.

urn:lsid:zoobank.org:act:4897CB3C-CC0B-42B5-AA14-EEAFE7708698

Fig. 7

Diagnosis

Preoccipital furrow present, with interocellar pit; OOL:LOL 1.67–2.08 (1.85). Male genitalia: harpe broad and round in apical half and lateral view; harpe/gvc index 0.46; ventromedial margins of harpes not touching at distoventral margin of gvc, ventromedial margin of harpe concave and converging and touching distomedially in basal half, straight and slightly diverging distolaterally in apical half; ventral margin of harpe slightly concave in basal two thirds and straight in apical third, dorsal margin straight in basal third and concave in apical two thirds, lateral margin straight in basal third and concave in apical two thirds.

Etymology

The species is named after the Kakamega Forest which is the sampling location of the holotype and all 15 paratypes.

Material examined

Holotype

KENYA • ♂; Western Province, Kakamega Forest; 00°12′09 N, 34°52′06 E; 1553 m a.s.l.; 2 May 2007; F. Hita Garcia leg.; Transect 28; primary rain forest; Winkler leaf litter extraction; ZFMK; ZFMK- HYM-00037014 .

Paratypes

KENYA • 1 ♂; Western Province, Kakamega Forest; 00°21′4.9 N, 34°51′41.1 E; 1602 m a.s.l.; no date on label, 2007 or 2008; F. Hita Garcia leg.; Transect 1; primary rain forest; Winkler leaf litter extraction; NHMUK; NHMUK-013389006 • 1 ♂; same collection data as for holotype; SMNS; SMNS-HYM-T00777 • 2 ♂♂; same collection data as for holotype; ZFMK; ZFMK-HYM-00034420 , ZFMK- HYM-00034422 • 1♂;same collection data as for holotype; 2Aug.2007; NHMUK; NHMUK-013389007 • 2 ♂♂; same collection data as for holotype; 2 Aug. 2007; NMK; NMK ( ZFMK-HYM-00034424 ), NMK ( ZFMK-HYM-00034425 ) • 1 ♂; same collection data as for holotype; 2 Aug. 2007; SMNS; SMNS-HYM-T00778 • 7 ♂♂; same collection data as for holotype; 2 Aug. 2007; ZFMK; ZFMK- HYM-00034427 to ZFMK-HYM-00034433 .

Description

Male (N = 4 in morphometric measurements)

BODY LENGTH. 0.68–0.73 mm (0.72 mm).

COLOUR. Head brown, mesosoma brown, metasoma brown except anterior third and posterior end lighter; scape light brown-yellowish and pedicel light brown, flagellum light brown; legs light brown-yellowish except joints and tarsi slightly lighter and metacoxa light yellow and transparent; fore wing venation light brown, fore and hind wing disc slightly melanized, fore wing at proximal part less melanized.

ANTENNA. 11-segmented, flagellomeres trapezoidal; scape 3.7× as long as pedicel, scape longer than F1 and F2 combined, F1 2.5× as long as wide, F1 1.7× as long as pedicel, F1 1.4× as long as F2, F1 shorter than F7 and F8 combined, F1 shorter than F9, F6 1.6 × as long as wide, F6 shorter than F7 and F8 combined, F6 1.1 × as high as F9; few distinctly small multiporous plates on flagellomeres, sensillae on flagellomeres erect and longer than width of flagellomeres.

HEAD. Head width 1.12–1.20× (1.14) head height; head width 1.60–1.83 × (1.74) interorbital space; maximum eye diameter 1.20–1.25× (1.24) minimum eye diameter; head height 1.59–1.80 × (1.67) maximum eye diameter. Dorsal margin of occipital carina ventral to dorsal margin of lateral ocellus in lateral view; preoccipital furrow present, with interocellar pit; preoccipital carina present.OOL:POL:LOL 1.00:0.80–0.96:0.48–0.60 (1.00:0.93:0.54); OOL 1.92–2.15 × (2.15) lateral ocellus diameter. White, thick setae on upper face absent; supraclypeal depression present; lateral margin of torulus slightly raised; intertorular carina present; posterolateral processes of gena absent.

MESOSOMA, METASOMA. Mesosoma compressed laterally. Head width 1.14–1.18 × (1.18) mesosoma width; Weber length 213–281 µm (263 µm). Mesoscutum densely setose, setae curved backwards; median mesoscutal sulcus absent; interaxillar sulcus superficial, scutoscutellar sulcus not adjacent to transscutal articulation, scutoscutellar sulcus straight; dorsal axillar area sparsely setose, setae curved backwards or straight; mesoscutellum sparsely setose, setae curved backwards or straight. Mesoscutum width 1.92–2.06 × (2.00) mesoscutellum width; posterior mesoscutal width 1.46–1.59 × (1.50) mesoscutellum width; mesoscutellum length 1.69–1.77× (1.69) mesoscutellum width; mesoscutellum length 1.11– 1.20 × (1.13) posterior mesoscutal width; Weber length 1.29–1.36× (1.31) mesoscutum width; Weber length 1.47–1.56× (1.56) mesoscutellum length. Anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex absent; mesometapleural sulcus absent; posterior propodeal projection absent; posterior mesosomal comb absent. Basal transverse carina of petiole (on syntergum) absent; longitudinal carinae on syntergum absent; translucent patches on metasoma absent.

FORE WING. Length 2.86–3.18 × (3.18) width; stigmal vein as long as pterostigma marginal length.

MALE GENITALIA. Genital length 113–119 µm (113 µm); Weber length 1.79–2.37 × (2.33) genital length; gvc width 56–63 µm (63 µm); genital length 1.80–2.11× (1.80) gvc width; gvc width less than three quarters of gvc length; gvc width 1.06× distal gvc width. Proximodorsal margin of gvc strongly convex; distodorsal margin of gvc descending proximomedially ( Fig. 7C ); proximoventral margin of gvc strongly concave; distoventral margin of gvc convex and descending proximomedially ( Fig. 7A ); ventral area of gvc straight; dorsal area of gvc strongly convex ( Fig. 7B ); proximolateral margin of gvc concave and strongly ascending ventrally; distolateral margin of gvc convex, more strongly descending ventrally ( Fig. 7B ). Harpe broad and round in apical half and lateral view; harpe/gvc index 0.46; lateral articulation site of harpe with gvc flush ( Fig.7A, C ); ventral margin of harpe slightly concave in basal two thirds and straight in apical third, dorsal margin straight in basal third and concave in apical two thirds ( Fig. 7B ), lateral margin straight in basal third and concave in apical two thirds, widest point of harpe at lateral articulation site with gvc ( Fig. 7A, C ); ventromedial margins of harpes not touching at distoventral margin of gvc, ventromedial margin of harpe concave and converging and touching distomedially in basal half, straight and slightly diverging distolaterally in apical half ( Fig. 7C ), apex of harpe rounded, oriented distolaterally ( Fig. 7A, C ). Harpe with at least one lateral seta restricted to apical half, longest lateral seta more than half as long as harpe, lateral seta oriented distodorsally and distolaterally; harpe with at least one ventral seta restricted to apical half, longest ventral seta three quarters as long as harpe, ventral seta oriented distolaterally and distoventrally; harpe with at least three apical setae, longest apical setae less than one quarter as long as harpe, apical setae oriented distodorsally, distolaterally and distoventrally. Aedeagus + gonossiculus more than one quarter as long as harpe, apex of aedeagus + gonossiculus indistinct ( Fig. 7A, C ) and dorsal to apex of harpe.Aedeagus + gonossiculus with at least two digital teeth, oriented ventrally. Genitalia strongly sclerotized with strongest sclerotization at aedeagus + gonossiculus.

Female

Unknown.

Variation

ZFMK-HYM-00034433 has a lighter body colouration, and shows more distinct colour contrast in the metasoma, with the anterior third being distinctly lighter than the rest.

Biology

Host unknown, specimens collected from leaf litter.

Distribution

Afrotropical: Kenya.

Remarks

Comparison with similar species

Aphanogmus kakamegaensis sp. nov. and A. njia sp. nov. share having an interocellar pit and male genitalia with a broad harpe without any thin and finger-like projections in lateral view (as seen in, for example, A. ashitakai sp. nov., A. nehbergi sp. nov., and A. mariae sp. nov.). They can be distinguished by the dorsal, lateral and ventromedial margin of the harpe being very differently shaped, and the genitalia of A. kakamegaensis being more strongly sclerotized than those of A. njia .

For more comparisons with similar species, see remarks under A. isiukhu sp. nov.

Condition of type material

In the holotype, the three distal tarsal segments of the right fore leg are missing.

Figures

Fig. 7. Holotype of Aphanogmus kakamegaensis sp. nov. (ZFMK-HYM-00037014). A–C. Male genitalia in ventral (A), lateral (B) and dorsal (C) views. D. Habitus in lateral view.