Aphanogmus kakakili, 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 : 86-89

Aphanogmus kakakili sp. nov.

urn:lsid:zoobank.org:act:15035945-F406-441C-BB2E-06F4CCA15B66

Fig. 23

Diagnosis

Scape as long as F1 and F2 combined; F1 as long as F2; preoccipital furrow present, with interocellar pit; median mesoscutal sulcus present; median mesoscutal sulcus not adjacent to transscutal articulation; mesoscutellum length 2.00–2.12 × (2.00) mesoscutellum width; mesoscutellum length 1.25–1.41 × (1.25) posterior mesoscutal width. Male genitalia: harpe bilobed; ventral lobe finger-shaped and broadened in apical two thirds and dorsolateral lobe triangular with plateau on apex in lateral view; harpe/gvc index 0.42; dorsolateral lobe/ventral lobe index 0.48; dorsolateral length of harpe/harpe index 0.55; dorsomedial margins of harpes not touching at distodorsal margin of gvc, dorsomedial margin of harpe straight and parallel to other harpe in basal quarter, concave in apical three quarters; aedeagus + gonossiculus with at least two digital teeth, oriented ventrolaterally; proximolateral margin of gvc concave and strongly ascending ventrally.

Etymology

The species name is a composition of the respective first two syllables of the sampling locations where holotype and paratypes were collected, Kakamega Forest and Mount Kilimanjaro.

Material examined

Holotype

KENYA • ♂; Western Province, 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-00037036 .

Paratypes

TANZANIA – Kilimanjaro Region • 1 ♂; Mount Kilimanjaro; 3°8′18.7 S, 37°18′19.2 E; 2650 m a.s.l.; 8 Oct. 2012; KiLi project leg.; “tree 3”; FOC4, Ocotea forest; Coloured pan trap; ZFMK; ZFMK- HYM-00037074 • 2 ♂♂; Mount Kilimanjaro; 3°10′43.9 S, 37°30′45.4 E; 2800 m a.s.l.; 26 Jan. 2012; KiLi project leg.; “high 2”; FPO5, Podocarpus forest; Coloured pan trap; ZFMK; ZFMK-HYM-00037072 , ZFMK-HYM-00037076 • 1 ♂; same collection data as for preceding; “low ex”; ZFMK-HYM-00037075 • 1 ♂; same collection data as for preceding; “tree 2”; ZFMK-HYM-00037073 • 1 ♂; Mount Kilimanjaro; 3°9′57.1 S, 37°21′45.4 E; 2940 m a.s.l.; 28 Jan. 2012; KiLi project leg.; “tree 1”; FPO2, Podocarpus forest; Coloured pan trap; ZFMK; ZFMK-HYM-00037077 .

Description

Male (N = 4 in morphometric measurements)

BODY LENGTH. 0.90–1.00 mm (0.90 mm).

COLOUR. Head brown, mesosoma brown, metasoma brown; scape, pedicel and flagellum light brown; legs light brown except joints and tarsi lighter; fore wing venation light brown, distal end of marginal vein and pterostigma marginal vein distinctly darker, fore and hind wing disc slightly melanized, fore wing at proximal part less melanized.

ANTENNA. 11-segmented, flagellomeres trapezoidal; scape 3.5× as long as pedicel, scape as long as F1 and F2 combined, F1 2.9× as long as wide, F1 1.7× as long as pedicel, F1 as long as F2, F1 shorter than F7 and F8 combined, F1 shorter than F9, F6 2.6 × as long as wide, F6 shorter than F7 and F8 combined, F6 as high as F9; few distinctly small multiporous plates on flagellomeres, sensillae on flagellomeres erect and longer than width of flagellomeres.

HEAD. Head width 1.15–1.24 × (1.15) head height; head width 1.58–1.78 × (1.78) interorbital space; maximum eye diameter 1.16–1.40× (1.40) minimum eye diameter; head height 1.62–1.74 × (1.62) 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 distinct.OOL:POL:LOL 1.00:1.00–1.33:0.61–1.00 (1.00:1.33:1.00); OOL 1.67–2.00 × (1.71) 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 1.11–1.18 × (1.18) mesosoma width; Weber length 269–369 µm (269 µm). Mesoscutum densely setose, setae curved backwards; median mesoscutal sulcus present; median mesoscutal sulcus not 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 2.07–2.35× (2.07) mesoscutellum width; posterior mesoscutal width 1.50–1.65× (1.60) mesoscutellum width; mesoscutellum length 2.00–2.12× (2.00) mesoscutellum width; mesoscutellum length 1.25–1.41 × (1.25) posterior mesoscutal width; Weber length 1.39–1.48 × (1.39) mesoscutum width; Weber length 1.43–1.64 × (1.43) mesoscutellum length. Anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex distinctly short, oriented posterodorsally in lateral view with pointed and lighter end; mesometapleural sulcus absent; posterior propodeal projection straight and light in ventrolateral view; posterior mesosomal comb indistinct. Basal transverse carina of petiole (on syntergum) present; diffuse number of indistinct basal longitudinal carinae on syntergum; translucent patches on metasoma absent.

FORE WING. Length 2.70–2.83 × (2.83) width; stigmal vein shorter than 2 × pterostigma marginal length.

MALE GENITALIA. Genital length 131–144 µm (131 µm); Weber length 2.68–2.05 × (2.05) genital length; gvc width 63–69 µm (63 µm); genital length 2.00–2.10 × (2.10) gvc width; gvc width two thirds of gvc length; gvc width 1.26 × distal gvc width. Proximodorsal margin of gvc convex; distodorsal margin of gvc descending proximomedially ( Fig. 23C ); proximoventral margin of gvc concave; distoventral margin of gvc strongly descending proximomedially ( Fig. 23A ); ventral area of gvc straight; dorsal area of gvc convex ( Fig. 23B ); proximolateral margin of gvc concave and strongly ascending ventrally; distolateral margin of gvc convex ( Fig. 23B ). Harpe bilobed; ventral lobe finger-shaped and broadened in apical two thirds and dorsolateral lobe triangular with plateau on apex lateral view; harpe/gvc index 0.42; dorsolateral lobe/ventral lobe index 0.48; dorsolateral length of harpe/harpe index 0.55; lateral articulation site of harpe with gvc not flush ( Fig. 23A, C ); ventral margin of harpe convex in basal two thirds and straight in apical third, dorsal margin convex in basal two thirds and slightly concave in apical third ( Fig. 23B ), lateral margin convex, widest point of harpe at lateral articulation site with gvc ( Fig. 23A, C ); dorsomedial margins of harpes not touching at distodorsal margin of gvc, dorsomedial margin of harpe straight and parallel to other harpe in basal quarter, concave in apical three quarters ( Fig. 23C ), apices of ventral and dorsolateral lobe rounded, apex of ventral lobe oriented distolaterally and apex of dorsolateral lobe oriented distomedially ( Fig. 23A, C ). Harpe with at least one lateral seta on dorsolateral lobe restricted to apical half, longest lateral seta one third as long as harpe, lateral seta oriented distodorsally and distolaterally; harpe with at least two apical setae on ventral lobe, longest apical setae on ventral lobe less than one quarter as long as harpe, apical setae on ventral lobe oriented distodorsally and distolaterally; indistinct number of median setae on ventral lobe, longest median setae less than one quarter as long as harpe, median setae oriented distodorsally and with indistinct orientation. Aedeagus + gonossiculus with indistinct length ( Fig. 23A, C ). Aedeagus + gonossiculus with at least two digital teeth, oriented ventrolaterally. Genitalia moderately sclerotized with strongest sclerotization at aedeagus + gonossiculus and weakest sclerotization at harpes

Female

Unknown.

Variation

All paratypes from Tanzania are darker. The anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex is not lighter at the end and slightly longer in some paratypes from Tanzania.

Biology

Host unknown, specimens collected from leaf litter ( Kenya) or with coloured pan traps ( Tanzania).

Distribution

Afrotropical: Kenya and Tanzania.

Remarks

Comparison with similar species

Aphanogmus kakakili sp. nov. is equipped with an interocellar pit, which is unusual and can – considering the Afrotropical species of the A. fumipennis species group – otherwise only be found in A. guenteri sp. nov. However, the pit is less oval-shaped in A. kakakili than in A. guenteri . Apart from this specific similarity, both species are easily distinguishable from each other. Regarding the male genitalia, A. kakakili closely resembles the Palaearctic Aphanogmus fasciipennis Dessart, 1963 (drawing in Dessart 1963a: 401, figs 20–21). Both species share the combination of the broadened apical two thirds of the ventral lobe in lateral view, the concave and strongly ascending ventrally proximolateral margin of the gvc, and the visible digital teeth. However, the dorsolateral lobe of A. fasciipennis is distinctly smaller and equipped with two lateral setae instead of one lateral seta.

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

Condition of type material

In the holotype, the posterior half of the meatsoma is deformed, thus the body length measurement is not precise.

Figures

Fig. 23. Holotype of Aphanogmus kakakili sp. nov. (ZFMK-HYM-00037036). A–C. Male genitalia in ventral (A), lateral (B) and dorsal (C) views. D. Habitus in lateral view.