Chrysoctonus, Mathot, 1966

Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V., 2021, Illustrated key to the genera and catalogue of Mymaridae (Hymenoptera) in the Afrotropical region, Zootaxa 5036 (1), pp. 1-166 : 24

CHRYSOCTONUS Mathot, 1966

( Figs 85, 86 )

Chrysoctonus Mathot, 1966: 224 . Type species: Chrysoctonus apterus Mathot, 1966 , by monotypy. See Huber et al. (2020) for generic synonyms and their type species.

Diagnosis. Ocelli absent; female antenna with funicle 7-segmented ( Fig. 86 ); mesosoma short, higher than wide, with pronotum, mesoscutum and scutellum all about equal in length ( Fig. 85 ); wingless ( Fig. 85 ). Male with flagellum 11-segmented, each funicle segment several times as long as wide and fully winged, with venation extending almost 0.6× fore wing length.

Discussion. Chrysoctonus belongs to the Borneomymar group of genera. In the Afrotropical region this group also includes Borneomymar . All Chrysoctonus males have the wing venation at least 0.6 × the wing length (females are wingless). Females of the three genera are distinguished by the number of funicle segments — 5 in Arescon , 8 in Borneomymar and 7 in Chrysoctonus . Extralimital species of Chrysoctonus have as few as 4 funicle segments but so far the single Afrotropical species is only known to have 7.

Afrotropical hosts. Unknown.

Important reference. Huber & Triapitsyn (2015).

Figures

FIGURES 85, 86. Chrysoctonus apterus Mathot,holotype. Democratic Republic of the Congo, Oriental,Yangambi,17.viii.1951, forest litter; 85, habitus; 86, antennae. Scale bars: 85 = 500 μm; 86 = 100 μm.