Paramaronius cavipennis, Biffi, Gabriel, 2015

Biffi, Gabriel, 2015, Three new species and distributional records for Paramaronius Wittmer (Coleoptera, Cantharidae, Chauliognathinae), ZooKeys 516, pp. 49-69 : 52-53

Taxon classification Animalia Coleoptera Cantharidae

Paramaronius cavipennis sp. n. Figs 8, 9, 16, 24, 28, 32

Type material.

HOLOTYPE ♂: BRAZIL: Minas Gerais, Serra do Caraça, Santa Bárbara, 23-25.xi.1960, Araujo & Martins col. (MZSP).

Description.

Head with the occipital region and vertex dark brown; frons, clypeus and mandibles light brown; base of antennae, genae, labium and ventral base of mandibles yellow. Antennae with antennomere 1 dark brown dorsally and light brown ventrally; last antennomeres lost. Labial and maxillary palpi light brown. Pronotum dark brown, with a median anterior small round yellow spot and a basal, median, bigger, yellow spot reaching posterior margin; hypomera yellow. Scutellum pale yellow with the apex translucent. Elytra light brown with yellow apices. Hind wings brown. Ventrally, thorax light brown, with anterior margins of meso- and metanepisterna dark brown. Legs totally dark brown. Abdominal tergites light brown with lateral margins yellow; ventrites light brown, with lateral margins yellow covered with dark brown spots; two last tergites and ventrites dark brown.

Male (Fig. 8): Head with short and dense pubescence; vertex and occipital region flat; lateral margins of head arcuate behind eyes. Antennae with antennomere 1 slender, 2.7 times longer than wide. Pronotum 1.1 times wider than long; anterior and posterior margins slightly rounded; lateral margins slightly sinuate; posterior angles slightly directed upwards. Scutellum wide, triangular, apex truncate. Elytra (Fig. 9) short, 1.5 times longer than wide; dorsal surface modified in a deep hollow surrounded by a scarce, long and thin pubescence, followed by a sloped surface covered by very short pubescence; external margins of elytra constricted laterally; sutures abruptly dehiscent from apical half; apex truncate, with rounded angles. Legs slender; hind tibia slightly longer than hind femur; tarsomeres gradually increasing in size from fore to hind legs; first metatarsomere 1.15 times longer than second and 2.5 times longer than third. Abdominal glandular pores slightly prominent. Seventh abdominal ventrite (Fig. 16) wider than long, densely pubescent, deeply emarginated forming two apical wide lobes with truncate apices. Aedeagus (Fig. 24) with a large right prolongation of tegmen, slightly sinuous on posterior margin, with one angle well developed and other truncate, and rather straight on lateral margin, covered with large setae. Dorsal surface with projecting apophysis. Left setiferous prolongation (Figs 24, 32) long and curved, slightly clubbed, with few setae at apex and on the dorsal surface. Right paramere (Fig. 28) long, curved, narrowing upwards and divided in two opposite processes reaching apophysis of tegmen. Left paramere flat, short and wide, divided apically and covering the base of dorsal surface of median lobe. Median lobe (Fig. 32) long and slightly curved to the right. Ventral and lateral surfaces of tegmen smooth.

Female: Unknown.

Etymology.

The specific epithet is derivative of the Latin words cavum (cavity) + pennis (wings), referring to its deep hollows on dorsal surface of elytra.

Distribution.

Brazil (Minas Gerais) (Fig. 44, 45).