Dentalion crassicornis Hansson, 2011, sp. nov.

Dentalion crassicornis sp. nov.

(Figs 19–22, 54, 61)

Diagnosis. Flagellum thick, second flagellomere 1.7X as wide as pedicel (Fig. 61); frontal suture reaching eyes at level equal with anterior margin of anterior ocellus (Fig. 19); thoracic dorsum golden-green (Fig. 54); forewing costal cell bare (as in Fig. 52); propodeum smooth (Fig. 22), callus with 7 setae.

Description. FEMALE. Length 1.9 mm. Scape yellowish-brown with dorsal edge dark brown, pedicel and flagellum dark brown. Frons below frontal suture metallic bluish-purple, above frontal suture metallic bluish-green. Vertex golden-green. Mesoscutum, scutellum and propodeum golden-green. Coxae dark and metallic; femora and tibiae dark brown; tarsi with tarsomeres 1–3 white, 4 dark brown. Forewing hyaline. Gaster golden-green.

Antenna as in Fig. 61. Frons with raised, strong reticulation below frontal suture and raised, very weak reticulation above frontal suture (Fig. 19); frontal suture reaching eyes at level equal with anterior margin of anterior ocellus. Vertex with engraved, weak reticulation inside ocellar triangle except medially with raised, strong reticulation, and smooth outside ocellar triangle (Fig. 20). Occipital margin rounded. Eyes with sparse, scattered hairs (Figs 19, 20).

Pronotum without transverse carina close to posterior margin (Fig. 21). Mesoscutum with raised, rather strong reticulation (Fig. 21); notauli as narrow distinct grooves in anterior 1/3, as a row of pits in posterior 2/3. Scutellum with raised, weak reticulation except posterior margin smooth (Fig. 21); with 1 pair of setae. Propodeum smooth (Fig. 22); callus with 7 setae. Forewing speculum closed below; costal cell bare.

Petiole 0.2X as long as wide, smooth. Gaster elongate with apex acuminate; tergites smooth.

MALE. Unknown.

Material examined. Holotype female (BMNH) labelled “ TRINIDAD, St. George, St. Augustine, xii.1976, F.D. Bennett”.

Etymology. Named for the thick flagellum of the antenna, from the Latin crassus = thick, and cornu = horn. Distribution. Trinidad & Tobago.