CHRYSOCTONUS Mathot, 1966

(Figs 274–278)

Chrysoctonus Mathot, 1966: 224 . Type species: Chrysoctonus apterus Mathot, 1966, by monotypy.

Myrmecomymar Yoshimoto, 1990: 28 . Type species: Myrmecomymar masneri Yoshimoto, 1990, by original designation. Synonymy by Huber & Triapitsyn, 2015: 80.

Diagnosis. Body length 425–675 μm (females); 365–605 (males). Wingless (Figs 274, 276); ocelli absent (Fig. 276b); metasoma short, higher than wide, with pronotum, mesoscutum and scutellum all about equal in length, with an almost 90° angle between mesoscutum and scutellum, and scutellum almost in line with propodeum (Figs 274, 276). Male fully winged, with venation extending almost 0.6× fore wing length (Fig. 275); flagellum with each funicle segment several times as long as wide (Fig. 278).

Discussion. Among genera with 5-segmented tarsi, Chrysoctonus appears to be most closely related to Arescon, which also has a long fore wing venation. Unlike Arescon, and most other Mymaridae, the number of funicle segments in females is variable, ranging from four to eight but usually five in Nearctic species.

Important reference. Huber & Triapitsyn (2015).