Tetragonoschema (Tetragonoschema) cupreocingulatum Hoscheck, 1931

(Figs. 10, 45, 78)

Tetragonoschema cupreocingulatum Hoscheck, 1931a: 163 . Type locality: Bolivia, Chaco, Tunamá, Chiquitos.

Tetragonoschema cupreocingulatum: Blackwelder, 1944: 315 (checklist); Théry, 1944: 14 (catalogue, key, redescription); Bellamy, 2008: 1519 (catalogue).

Type specimens studied. Number of syntypes unknown; lectotype (Fig. 10), here designated (male, ISNB): “Bol. [ivia], Tunamá Chiq.[uitos], x.[19]26, Lind, D. Chaco-Exped.[ition] [p] // Coll. R. I. Sc. N. B. Amerique Tropicale [p, violet] // Tetragonoschema cupreocingulatum m. n. sp. Typ! [p] Det. Hoscheck 1929 [p] // Syntype [p, red]”.

Further specimens studied. ARGENTINA. SALTA: Tartagal, xii.1950, J. Daguerre leg. (1 female, NMNH); TUCUMÁN: iii.1948, R. Golbach leg. (1 male, MNCN); BOLIVIA. SANTA CRUZ: Cordillara, Tucuaca, 23.x.2001, Jose L. Aramayo leg. (3 males, 1 female, ISNB); BRAZIL. MATTO GROSSO: 1886, P. Germail leg. (1 male, NMHN); PARAGUAY. BOQUÉRON: Enciso NP, 21°12ʹS 61°38ʹW, 257m, 9.–11.xii.2010, Sv. Bílý leg. (1 male, NMPC); Loma Plata, 22°23ʹS 59°50ʹW, 141m, 5.–7.xii.2010, Barries, Bílý & Cate leg. (2 males, 2 females, NMPC; 2 males, 2 females, WBCW) .

Diagnosis. Small, length: 3.3–3.8 mm, somewhat elongate with bicolorous elytra (black with a red pattern); in its colouration it resembles T. (T.) rubromarginatum, T. (T.) humerale and T. (T.) trinidadense; it differs from T. (T.) rubromarginatum in being smaller, the narrower elytral epipleura not reaching elytral suture and not being visible from above, and by the form of male genitalia (Figs. 78 vs. 75); from T. (T.) humerale and T. (T.) trinidadense it differs by the longer elytra (1.30 times as long as wide) and by the parameres which bear a preapical spine (Fig. 78).

Since the number of syntypes is unknown I hereby designate the male from ISNB as the lectotype of T. cupreocingulatum Hoscheck, 1931 .

Bionomy. Unknown. Specimens from Paraguay (Enciso, Loma Plata) were collected in very dry, semidesert biotops of so called “Dry Chaco” (Chaco seco).

Sexual dimorphism. No dimorphism apparent.

Distribution. Argentina (new country record), Bolivia, Brazil (new country record), Paraguay (new country record).