Cyoceraphron kahawia, 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 : 324-327

Cyoceraphron kahawia sp. nov.

urn:lsid:zoobank.org:act:1D5F479C-55BC-4144-BCB7-D440F5D53EC8

Fig. 94

Diagnosis

Mesosoma brown, metasoma light brown; OOL 2.46–2.67 × (2.50) lateral ocellus size; mesoscutum width 1.82–1.88 × (1.83) mesoscutellum width; Weber length 1.44–1.48 × (1.48) mesoscutellum length. Male genitalia: harpe cone-shaped in ventral and dorsal view; harpe/gvc index 0.58; dorsomedial margins of harpes not touching at distodorsal margin of gvc, dorsomedial margin of harpe straight and slightly oriented distolaterally in basal half, straight in apical half; Weber length 3.67–4.00× (3.67) genital length.

Etymology

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

Material examined

Holotype

TANZANIA • ♂; Kilimanjaro Region, Mount Kilimanjaro; 3°9′4.2 S, 37°17′23.6 E; 2220 m a.s.l.; 16 Feb. 2012; KiLi project leg.; “low ex”; FOD1, disturbed Ocotea forest; Coloured pan trap; ZFMK; ZFMK-HYM-00037084.

Paratype

TANZANIA • 1 ♂; Kilimanjaro Region, Mount Kilimanjaro; 3°12′6.7 S, 37°30′57.3 E; 2370 m a.s.l.; 26 Jan. 2012; KiLi project leg.; “high 3”; FOD5, disturbed Ocotea forest; Coloured pan trap; ZFMK; ZFMK-HYM-00037085 .

Description

Male (N = 2 in morphometric measurements)

BODY LENGTH. 1.05–1.23 mm (1.05 mm).

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

ANTENNA. 11-segmented, flagellomeres cylindric; scape 4.0× as long as pedicel, scape longer than F1 and F2 combined, F1 2.4× as long as wide, F1 1.8× as long as pedicel, F1 1.2× as long as F2, F1 shorter than F7 and F8 combined, F1 shorter than F9, F6 2.0 × as long as wide, F6 shorter than F7 and F8 combined; numerous small multiporous plates on flagellomeres, sensillae on flagellomeres sickle-shaped and shorter than width of flagellomeres.

HEAD. Head width 1.13–1.15× (1.15) head height; head width 1.71–1.90 × (1.77) interorbital space; maximum eye diameter 1.20–1.54× (1.20) minimum eye diameter; head height 1.57–1.83 × (1.83) maximum eye diameter. Dorsal margin of occipital carina ventral to dorsal margin of lateral ocellus in lateral view; preoccipital furrow present; preoccipital carina present. OOL:POL:LOL 1.00:0.50– 0.67:0.53–0.67 (1.00:0.67:0.67); OOL 2.46–2.67× (2.50) lateral ocellus size. White, thick setae on upper face absent; supraclypeal depression present; lateral margin of torulus raised; intertorular carina present; posterolateral processes of gena absent.

MESOSOMA, METASOMA. Mesosoma compressed laterally. Head width 1.03–1.09 × (1.06) mesosoma width; Weber length 225–250 µm (250 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, setae curved backwards. Mesoscutum width 1.82–1.88 × (1.83) mesoscutellum width; posterior mesoscutal width 1.35–1.49 × (1.49) mesoscutellum width; mesoscutellum length 1.47–1.64× (1.54) mesoscutellum width; mesoscutellum length 1.04–1.13 × (1.04) posterior mesoscutal width; Weber length 1.16–1.29× (1.25) mesoscutum width; Weber length 1.44–1.48× (1.48) mesoscutellum length. Anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex curved in lateral view with pointed and lighter end, extending to end of mesosoma; mesometapleural sulcus absent; posterior propodeal projection straight and light in ventrolateral view; posterior mesosomal comb present. Basal transverse carina of petiole (on syntergum) present; at least five, basal longitudinal carinae on syntergum; pairs of translucent patches on metasomal syntergum and synsternum.

FORE WING. Length 2.86–3.16 × (3.09) width; stigmal vein longer than 3× pterostigma marginal length.

MALE GENITALIA. Genital length 88–94 µm (94 µm); Weber length 3.67–4.00 × (3.67) genital length; gvc width 44 µm (44 µm); genital length 2.14 × (2.14) gvc width; gvc width two thirds of gvc length; gvc width 1.23× distal gvc width. Proximodorsal margin of gvc straight; distodorsal margin of gvc descending proximomedially ( Fig. 94C ); proximoventral margin of gvc convex; distoventral margin of gvc descending proximomedially ( Fig. 94A ); ventral area of gvc convex; dorsal area of gvc slightly convex ( Fig. 94B ), indented distomedially; proximolateral margin of gvc slightly descending ventrally; distolateral margin of gvc convex, more strongly descending ventrally ( Fig. 94B ). Harpe cone-shaped in ventral and dorsal view; harpe/gvc index 0.58; lateral articulation site of harpe with gvc flush ( Fig. 94A, C ); ventral margin of harpe slightly concave, dorsal margin straight ( Fig. 94B ), lateral margin slightly convex, widest point of harpe at lateral articulation site with gvc ( Fig. 94A, C ); dorsomedial margins of harpes not touching at distodorsal margin of gvc, dorsomedial margin of harpe straight and slightly oriented distolaterally in basal half, straight in apical half ( Fig. 94C ), apex of harpe rounded ( Fig. 94A, C ). Harpe with at least one lateral seta restricted to apical quarter, longest lateral seta less than one quarter as long as harpe, lateral seta oriented distolaterally and distoventrally; harpe with at least two apical setae, longest apical setae one third as long as harpe, apical setae oriented distolaterally and distoventrally; median setae indistinct. Aedeagus + gonossiculus slightly less than as long as harpe, apex of aedeagus + gonossiculus broad ( Fig. 94A, C ) and as ventral as apex of harpe. Genitalia weakly sclerotized.

Female

Unknown.

Variation

The paratype ZFMK-HYM-00037085 has a darker body colouration, and the male genitalia are slightly more sclerotized at the apex of the harpes and at the distal gvc.

Biology

Host unknown, specimens collected with coloured pan traps.

Distribution

Afrotropical: Tanzania.

Remarks

Comparison with similar species

Cyoceraphron kahawia sp. nov. can be distinguished from all other species of Cyoceraphron by the distinct and unique overall brown body colouration (meso- and metasoma light brown-yellowish or partially golden-yellowish in other species of Cyoceraphron ). Additionally, C. kahawia can be separated from C. harpe sp. nov. by a distinctly different harpe shape (cone-shaped in C. kahawia and sickle-shaped in C. harpe ) and from C. dhahabudorsalis sp. nov. by distinctly longer flagellomeres (e.g., F1 2.4× as long as wide, F1 1.8× as long as pedicel, F6 2.0× as long as wide in C. kahawia and F1 1.3× as long as wide, F1 as long as pedicel, F6 1.1× as long as wide in C. dhahabudorsalis ). Additionally, C. kahawia can be separated from C. njano sp. nov. by a higher genital length to gvc width ratio (2.14 in C. kahawia and 2.00 in C. njano ), and by a gvc width of two thirds of gvc length in C. kahawia and a gvc width of more than three quarters of gvc length in C. njano . The ventral, lateral and dorsomedial margins of the harpe also differ in both species. Moreover, the dorsal and dorsomedial margins of the harpe distinctly differ between C. kahawia and C. invisibilis sp. nov. and the gvc width is two thirds of the gvc length in C. kahawia and alsmots equal in C. invisibilis . The harpe/gvc index of C. kahawia is distinctly lower with 0.58 than that of C. invisibilis with 1.00.

Condition of type material In the holotype, the left F7 to F9, the left hind leg (except coxa), and the right fore and hind wings are missing. F9 of the right antenna is compressed. The metasoma is detached and deformed and the posterior part is missing, thus the body length measurement is not precise.

Figures

Fig. 94. Holotype of Cyoceraphron kahawia sp. nov. (ZFMK-HYM-00037084). A–C. Male genitalia in ventral (A), lateral (B) and dorsal (C) views. D. Habitus in lateral view.