Archaeoditomotarsus gen. nov.

Type species: Archaeoditomotarsus crassitylus sp. nov., by present designation.

Description. General coloration brownish dorsally, cream-brownish ventrally. Dorsal surface covered with strong and deep punctures, punctation dispersed with several unpunctate patches along the body.

Head. Anteclypeus strongly extending beyond the anterior end of paraclypei, giving a characteristic shape of head (Fig. 4); first antennal segment extending beyond paraclypei and nearly reaching apex of clypeus; bucculae evanescent posteriorly; first rostral segment not reaching the posterior end of bucculae, lateral margins of head slightly concave; rostrum extending to metacoxae.

Thorax and wings. Pronotum subtriangular (Figs 1, 2) with a little cleft on humeral angles; cicatrices immaculate; lateral margins of pronotum straight, anterolateral margins truncate, not produced; thorax without any carina ventrally; ostiolar peritreme narrow and elongated (reaching the half-width of metapleuron) (Fig. 3), oval and flat, evaporatorium nearly unpunctate and smooth, without gyrification, occupying two thirds of metapleuron and occupying a little space in the posterior portion of the mesopleuron (Fig. 3); scutellum nearly equilaterally triangular, with an ivory callus on each side of base; hemelytra covering connexiva, membrane extending beyond apex of abdomen; tibiae without any sulcus or teeth.

Abdomen and general body features. Basiabdominal spine absent; connexiva immaculate and smooth; Pendergrast’s organs present on 6th and 7th sternum of female (Fig. 5); lateral margins of 7th sternum nearly straight; pygophore subrhomboid, posterior margin nearly straight (Fig.7), slightly concave in the mesial portion of the posterior edge. Basal plates rounded and curved at the edges (Fig. 5).

Etymology. The name is composed of the Greek prefix Archaeo -, meaning ancient, and the genus name of Ditomotarsus; the gender is masculine.