Review and reclassification of the Old World genus Physopelta (Hemiptera: Heteroptera: Largidae) Author Stehlík, Jaroslav L. Department of Entomology, Moravian Museum, Hviezdoslavova 29 a, CZ- 627 00 Brno – Slatina, Czech Republic text Acta Entomologica Musei Nationalis Pragae 2013 2013-11-15 53 2 505 584 journal article 2413 10.5281/zenodo.5739959 956fa4e4-8b18-4c70-94b2-5722d5348180 0374-1036 5739959 8D64B275-C6AF-411E-B79D-A3EBEB3D093FD Kmentia gen. nov. Type species. Lygaeus festivus Fabricius, 1803 , here designated. Description. Body large (♂♂ 15.50–19.60 mm, ♀♀ 16.00–18.90 mm).Antennae in both sexes long, always longer than pronotum, sometimes even longer than combined length of head and pronotum; antennomere 1 longer than antennomere 2 ( Figs 93−94 ); there is great variability in length of antennae among specimens. As an example, the length of antennomeres of three large and three small males are given here: Large males (mm): 1 – 7.13, 6.59, 6.43; 2 – 6.32, 6.05, 5.56; 3 – 3.35, 3.19, 2.11; 4 – 3.89, 3.62, 3.59; small males (mm): 1 – 4.27, 4.86, 4.8l; 2 – 3.89, 4.32, 4.37; 3 – 2.11, 2.32, 2.38; 4 – 3.19, 3.24, 3.08. Callar lobe only slightly gibbose, without sexual differences ( Figs 93−94 ). Labium reaching between mesocoxae. Profemora sexually dimorphic; in females more slender, with smaller number of small denticles; in small males profemora similar to those of females ( Figs 93−94 ). Ventral surface of profemora with short longitudinal furrow limited to its apical third; basal two-thirds medially convex with numerous denticles on the entire surface ( Figs 83 , 97 ). Protibiae ventrally unarmed ( Figs 95−96 ). Peritreme of metathoracic scent glands longitudinal, crescent-shaped, projecting both anteriad and posteriad ( Fig. 84 ). Pygophore ( Figs 85−88 ). Ventral rim slightly concave, rounded; lateral rim more elevated than ventral rim, strongly rounded, descending towards dorsal rim. Lateral rim infolding only slightly sloping into the genital chamber; anal tube wide, long, reaching middle of genital chambre ( Fig. 86 ). Parameres ( Figs 89−92 ). Parameres horizontal, their apices approaching and standing opposite each other, their apical portions bent dorsally, apex hook-shaped, pointed ( Figs 91−92 ), distinctly surpassing ventral rim of pygophore (see in lateral view − Fig. 88 ). Figs 81–84. Kmentia festiva ( Fabricius, 1803 ) , male.81 – fore coxae and trochanters (magnification 47×); 82 – detail of procoxa and protrochanter (70×); 83 – ventral surface of profemur (32×); 84 – detail of peritreme (150×). Scale bars: 0.2 mm (Fig. 84), 0.5 mm (Figs 81–83). (SEM micrographs: P. Kment). Female internal genitalia were described by DUVIARD (1975). Differential diagnosis. Kmentia gen. nov. belongs to Physopeltinae because of the strongly S-shaped intersegmental sulci between the abdominal sternites. It differs in several characters from the other genera of the subfamily, warranting its placement in a tribe of its own – Kmentiini trib. nov. : labium reaching between mesocoxae; callar lobe weakly gibbose in both sexes; ventral surface of profemora in both sexes with only short longitudinal furrow limited to its apical third, basal two-thirds medially convex with numerous denticles on the entire surface; protibia in both sexes unarmed; and structure of the male genitalia (parameres horizontally positioned, their apices approaching and standing opposite each other ( Fig. 85 ), bent dorsally in their apical portion, apex hook-shaped, pointed dorsally ( Figs 85, 87 ), distinctly surpassing ventral rim of pygophore (see in lateral view − Fig. 88 ). Etymology. This new genus is named in honour of my friend and colleague Petr Kment (Department of Entomology, National Museum, Prague ) with thanks for his help. Gender is feminine.