Orthomus maroccanus Chaudoir, 1873

Serrano, J., 2021, The genus Orthomus Chaudoir, 1838 in the Iberian Peninsula and Morocco, Russian Entomological Journal 30 (4), pp. 430-447 : 432

Orthomus maroccanus Chaudoir, 1873

Figs 1–4.

Dorsum dark piceous, appendages yellow reddish. Body length 8.0–9.8 mm. Males shiny, females dull with isodiametric microsculpture strongly developed. Antennomeres pubescent from the second third of antennomere 4, sometimes with small distally hairs in antennomere 3 in addition to the long apical setae (Fig. 1).

Pronotum transverse with anterior angles moderately projecting forward (Fig. 1), side narrowed forward and only moderately narrowed backward, maximum width before middle, posterior angle obtuse without a small tooth. Basal foveae from almost smooth to clearly punctured, area between external impression and lateral margin (postangular field) notably convex.

Elytra moderately widened toward apex, slightly narrowed toward basis; striae fine, unpunctured, intervals slightly convex, interval 3 with two setigerous punctures adjoining stria 3; humerus well-marked with a small tooth; scutellar setigerous puncture present at base of a well-developed parascutellar stria.

Episterna and abdomen from distinctly punctured to almost smooth, punctures on ventrites sometimes connected by shallow longitudinal ridges. Metepisterna slightly longer than wide, L/ W 1.1 (Fig. 2). Prosternal process not truncate. Mesotibia of males distinctly enlarged from middle to apex, metatibia slightly curved and weakly crenulate at internal margin of distal half.

Apical shaft of median lobe of the aedeagus large and equally narrowed to tip (Fig. 3), internal sac membranous and with longitudinal macrotrichia.