Cavitas, Uan, 2001

Uan, H Ui Xiao D A-Wei H, 2001, A review of Eunotinae (Hymenoptera: Chalcidoidea: Pteromalidae) from China, Journal of Natural History 35, pp. 1587-1605 : 1588-1589

Cavitas gen. nov.

Type-species. Cavitas concava sp. nov.

The genus is named because of its extremely concave scrobe; feminine gender.

Diagnostic characters. Scrobe very deep, distinctly hollowed (gures 1, 32), scapes completely sunk in it; antenna short, thick and clavate, antennal formula 11043; mandible small, formula 2.2; vertex slightly convex; lateral area outside of scrobe in upper face with conspicuous projection (gures 2, 5, 33), temple distinct; thorax convex; pronotum collar not margined; frenum with large and conspicuous aveolations (gures 37, 38); propodeum short and nucha distinct (gure 38); marginal vein longer, postmarginal vein slightly shorter than stigmal vein; rst gastral tergite about half length of gaster.

The gaster is very distinctive in the following characters: scrobe very concave and whole scape encased in the scrobe; thorax shiny and with slight punctures bearing short hairs; antennae without anelli, formula 11043. Some of its features suggest a possible relationship with Idioporus and Cephaleta . The diOEerences with the rst genus are the tarsi and antennae, the diOEerences with the second genus are shown in the preceding key.

Biology. Reared from pupae of coccids.

Distribution. China (Hainan).