Heydoniella Narendran, 2003

Narendran, T. C. & van Achterberg, Cornelis, 2016, Revision of the family Chalcididae (Hymenoptera, Chalcidoidea) from Vietnam, with the description of 13 new species, ZooKeys 576, pp. 1-202 : 98

Taxon classification Animalia Hymenoptera Chalcididae

Heydoniella Narendran, 2003 Figs 143-144, 145-146

Heydoniella Narendran, 2003: 85. Type-species: Heydoniella sarawakensis Narendran, by monotypy.

Diagnosis.

This genus comes near Oxycoryphe Kriechbaumer in having scutellum prolonged posteriorly; hind tibia with an additional carina and T1 with basal carinae and fovea. Heydoniella differs from Oxycoryphe in having: 1) pronotum without a median tooth or tubercle or triangle (in Oxycoryphe pronotum with a median tooth or tubercle or at least a median triangle); 2) hind coxa with a characteristic tuft of white dorsal setae (Fig. 94; in Oxycoryphe hind coxa without such characteristic white tuft of setae dorsally); 3) T1 unusually large, exceeding well middle of metasoma (in Oxycoryphe T1 not unusually large and not exceeding middle of metasoma), and 4) fore wing with two infumate bands (in Oxycoryphe fore wing without such bands). Shape of T1 of Heydoniella resembles that of Nearretocera Girault, which belongs to the tribe Hybothoracini , whereas Heydoniella belongs to the tribe Haltichellini .

Description.

Pronotum without a median tooth or tubercle or triangular area; scutellum at most slightly exceeding base of metasoma; fore wing with two large infumate bands; hind coxa dorsally with a bunch of white pubescence and a tooth; hind tibia with an additional carina on outer side; metasoma with basal carinae; T1 exceeding middle of metasoma, its posterior margin convex.

Host.

Unknown.

Distribution.

Malaysia (Sarawak; Narendran 2003), Vietnam (new record).