Gyragathis, van Achterberg, Cornelis & Long, Khuat Dang, 2010

van Achterberg, Cornelis & Long, Khuat Dang, 2010, Revision of the Agathidinae (Hymenoptera, Braconidae) of Vietnam, with the description of forty-two new species and three new genera, ZooKeys 54, pp. 1-184 : 66-68

Gyragathis gen. n.

Type species.

Gyragathis quyi sp. n.

Etymology.

From “gyros” (Greek for “circle”) and the generic name " Agathis ", because of the circular carina near the antennal sockets. Gender: feminine.

Diagnosis.

Apex of antenna without spine; antennal sockets (up to level of anterior ocellus) with a circular carina (Figs 206, 208); temples with a lateral tubercle (Fig. 207), in dorsal view parallel-sided and angulate (Fig. 206); area behind antennal sockets shallowly impressed (Fig. 206); area between antennal sockets with a trough (Fig. 208); pedicellus short (Fig. 198); clypeus flattened and with narrow straight ventral rim, but laterally wider and protruding (Fig. 205), malar flange protruding ventrally (Figs 205, 207); mouth-parts normal, galea not longer than wide, shorter than labial palp, and not visible in lateral view (Fig. 207); labrum slanted backwards, horizontal; mandible small; vertical axis of malar triangle about equal to horizontal axis, part of head below eyes directly narrowed ventrally (Fig. 205); malar suture absent; scutellum spaced punctate, with a subposterior crest and its medio-posterior depression transverse, rather narrow and largely smooth (Fig. 203); transverse metasternal carina non-lamelliform and below upper level of hind coxal cavities; veins of fore wing largely present, but vein 1-SR+M of fore wing absent (Fig. 202); vein 1-M of hind wing 0.6 times as long as vein M+CU; hind wing with 2 + 2 hamuli; fore and middle tarsal claws with a submedial lobe; hind trochantellus shorter than trochanter and trochanter flattened ventrally, without ventral carina; hind tibia without long black bristles (Fig. 198); outer face of middle tibia with row of pegs; ovipositor sheath distinctly longer than metasoma and 0.9-1.2 times fore wing.

Phylogenetic position.

Putative synapomorphies of the new genus Gyragathis are the circular carina of the frons, the tuberculate temple and the genal protuberance behind the mandible. It is otherwise similar to some atypical species of Therophilus Wesmael. Typical Therophilus has as synapomorphies the deeply concave frons, the narrowed marginal cell of the fore wing (occurs also in Camptothlipsis ) and the widened second metasomal tergite.

Distribution.

Oriental (four species).

Biology.

Unknown.