Orthomus barbarus barbarus (Dejean, 1828)

Serrano, J., 2021, The genus Orthomus Chaudoir, 1838 in the Iberian Peninsula and Morocco, Russian Entomological Journal 30 (4), pp. 430-447 : 435-436

Orthomus barbarus barbarus (Dejean, 1828)

Figs 23–27.

Dorsum between black and dark brown, males shiny, females less shiny or dull with isodiametric microreticulation. Body length 8.8–11.5 mm. Legs black, antennae and tarsi dark red. Eye notably convex, tempora short.

Pronotum shape variable, most commonly showing a trapezoid contour more narrowed forward and side entirely curved, maximum width at middle or so (Fig. 23), anterior angle not markedly protruding forward; posterior angle toothed; inner basal fovea linear, outer fovea from rugose to almost erased, punctures of moderate size and at least abundant in inner fovea, postangular field moderately convex.

Elytra almost parallel, slightly narrowed toward basis; humeral tooth well developed; striae smooth or vaguely punctured, intervals almost flat; discal pores on 3rd stria; parascutellar stria normally developed with proximal setose pore.

Prosternal process rounded; ventral segments almost smooth, fine punctures are found on sides of last ventrites; metepisterna smooth, long and narrowed apicad, L/ W 1.25) (Fig. 24).

Median lobe of aedeagus on lateral view with apical region curved upward; apical shaft on dorsal view rather variable between localities but predominating an elongate triangle evenly narrowed to tip and straight (Fig. 25), or deviated to right [see Mateu, 1957]. In lateral view the median lobe is somewhat ventrally bent (Fig. 26). The spermathecal duct is rather long, even longer than the spermatheca (Fig. 27).

The species is distributed in the Mediterranean coast from eastern Almeria to south France and also colonizes the South Meseta, Betic and Iberian chains and the River Ebro Basin.