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Key to genera of Afrotropical Sceliotrachelinae

(Life: Kingdom: Metazoa (animals); Phylum: Arthropoda; Class: Hexapoda; Order: Hymenoptera;  Superfamily: Platygastroidea; Family: Platygastridae)

ClassificationIdentification keys

1. Wings absent (A); T1 fused with T2 and S1 fused with S2, with no evident sulcus (A, B); frons with a transverse furrow above torulus Parabaeus

Wings fully developed (a) extending to at least T2 (b); T1 separated from T2 and S1 from S2 by a sulcus (b), sulcus sometimes partly obscured by dense pilosity (b); frons above torulus without transverse furrow 2

2. Spur of fore tibia combed (pts) (Isolia species-group) 3

Spur of fore tibia without comb 6

3. Pronotum with medial longitudinal sulcus (pms) (A); sternite 2 with long setae (B) Sceliotrachelus

Pronotum without medial sulcus (a); S2 glabrous (b) 4

4. Fore wings and microtrichia distinctly bicolored, giving the appearance of patches or stripes Pulchrisolia

Fore wings and microtrichia not bicolored 5

5. Fore wing with tubular submarginal vein (A); admedian depressions (adm) present, may be weak (A); transepisternal line present (tel) (B) ...Afrisolia

Fore wing without veins (a); admedian depressions absent (a); transepisternal line absent (b) Isolia

6. Fore wing with rudimentary submarginal vein, only sclerotized for about half its length (A); OOL usually subequal to or longer than LOL (B); body usually short and squat Amitus

Fore wing with submarginal vein fully sclerotized, ending in knob (a, b); OOL always distinctly shorter than LOL; body usually elongate, spindle-like 7

7. Propodeum medially with single keel (A); metasomal depression not visible; notauli absent (A); scutoscutellar sulcus foveolate (A); anterior T2 with a transverse line of foveae; in females, ventral A8A9 projecting distally; male antenna with long setae; submarginal vein of fore wing distinctly surpassing basal 0.33 of wing (B) Allotropa

Propodeum with H-shaped foamy structure (a); metasomal depression delimited by lateral propodeal carinae; notauli usually abbreviated, triangular (a), absent in a few species; scutoscutellar sulcus simple (a); anterior T2 with two pits, without a line of foveae; antennae variable, but not as above; submarginal vein of fore wing reaching at most to basal 0.33 of wing (b) Fidiobia


van Noort S, Lahey Z, Talamas EJ, Austin AD, Masner L, Polaszek A, Johnson NF 2021. Review of Afrotropical sceliotracheline parasitoid wasps (Hymenoptera, Platygastridae). In: Lahey Z, Talamas E (Eds) Advances in the Systematics of Platygastroidea III. Journal of Hymenoptera Research 87: 115222. https://doi.org/10.3897/jhr.87.73770


Key developed by Simon van Noort. Photographs included in the key Simon van Noort (Iziko Museums of South Africa).

Web author Simon van Noort (Iziko South African Museum)


Citation: van Noort, S. 2023. WaspWeb: Hymenoptera of the Afrotropical region. URL: www.waspweb.org (accessed on <day/month/year>).

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