Andersonoplatus macubaji, Linzmeier, Adelita M. & Konstantinov, Alexander S., 2018

Linzmeier, Adelita M. & Konstantinov, Alexander S., 2018, Andersonoplatus, a new, remarkable leaf litter inhabiting genus of Monoplatina (Coleoptera, Chrysomelidae, Galerucinae, Alticini), ZooKeys 744, pp. 79-138 : 93-95

Andersonoplatus macubaji sp. n. Figs 17, 18

Description.

Body length 2.86-2.97 mm, width 1.40-1.51 mm, shiny, pilose, flat in lateral view. Color brown.

Head (Fig. 17D): slightly convex in lateral view, shiny, evenly reticulated, vertex punctuated. Frons and vertex forming nearly a 135° angle in lateral view. Antennal callus delimited from vertex by shallow, slightly inclined supracallinal sulcus. Antennal callus slightly raised, covered with punctures bearing setae. Orbital sulcus shallow. Supraorbital sulcus absent. Supracallinal sulcus poorly delimited. Suprafrontal and frontolateral sulcus shallow. Frontogenal and frontolateral sutures well developed. Orbit as wide as transverse diameter of antennal socket. Interantennal space narrower than transverse diameter of eye and wider than transverse diameter of antennal socket. Frontal ridge short, narrow. Anterofrontal ridge short, relatively tall, oblique. Antennae filiform; second antennomere shorter.

Thorax: pronotum (Fig. 17A, B) narrower than elytra. Anterior margin wider than posterior, posterior margin straight, lateral margin slightly sinuated. Surface reticulate, punctate, pilose. Pronotal disc not raised. Scutellum rounded, reticulated, wider than long. Prosternal surface reticulated. Prosternal intercoxal process narrow. Posterior end twice as wide as middle. Elytra fused. Elytral surface shiny, pilose, punctate. Punctures forming nine striae. Interspaces flat. Second and third striae reaching elytral base. Epipleura nearly vertical, pilose. Metafemur 1.74 times longer than metatibia. Metatibia almost straight in lateral view, slightly curved in dorsal view. Outer and inner lateral dorsal ridge ending in an apical tooth followed by numerous denticles (Fig. 17E). Metatarsomeres one and two of similar size, twice as long than third. Claws simple and long.

Male unknown.

Female genitalia (Fig. 18 A–C): tignum long, narrow, slightly bent, with central canal; anterior sclerotization narrow, posterior sclerotization poorly delineated, two-pronged pitchfork-like, wider than anterior (Fig. 18B). Vaginal palpi elongate, basally strongly sclerotized, posterior sclerotization concave. Palpi narrowly rounded at apex, enlarged at last third but thinned at apex, separated on one third of their length (Fig. 18C). Spermatheca curved, with receptacle and pump not differentiated from each other, receptacle longer than pump. Apex of pump with spoon-like projection relatively thick at base. Spermathecal duct short, widest at base, without coils, making narrow loop (Fig. 18A).

Type material.

Holotype, ♀. VENEZUELA: Merida/ Apartaderos, Laguna/ Macubaji, 3500m/ 29.VII.1989, S.&J. Peck/ paramo cushion plant/ litter, 89-285 (MIZA). Paratype (1♀ USNM). Same label as holotype.

Etymology.

The specific epithet is a noun in apposition based on the type locality.

Differential diagnosis.

Andersonoplatus macubaji is similar to A. merida and can be differentiated from it based on the following characters: vaginal palpi separated on one third of their length (Fig. 18C); posterior sclerotization of vaginal palpi concave on side (Fig. 18C); anterior end of tignum narrow (Fig. 18B).