ValdésPavelNotes about morphological features of the Western Hemisphere subtribe Ardistomina, and revision of genus Semiardistomis Kult (Coleoptera, Carabidae, Scaritinae, Clivinini) Zookeys24720122012210196710.3897/zookeys.210.3042 Semiardistomis semipunctatus http://species-id.net/wiki/Semiardistomis_semipunctatus (Dejean, 1831)Fig. 58Clivina semipunctata Dejean, 1831: 509.Ardistomis semipunctata (Dejean): Putzeys 1846: 648.Ardistomus semipunctatus (Dejean): Csiki 1927: 549; Blackwelder 1944: 27.Ardistomis semipunctatus (Dejean): Lorenz 2005: 146.Ardistomis (Semiardistomis) semipunctatus (Dejean): Kult 1950: 316.Semiardistomis semipunctata (Dejean); Erwin 2011: 238.Type material.

Lectotype, here designated, at MHNP, pinned, labeled: green paper handwritten “Buenos Ayres Lacordaire”/ handwritten “ 24”/ “Lectotype Clivina pallipes Dej. Des. S.W. Nichols 1984”/ printed on red paper “Lectotype”.

Type locality.

Given by Dejean (1831: 509) as "parties méridionales de Brésil et dans les environs de Buenos Ayres", Brazil and Argentina.

Diagnosis.

Body piceous with green bluish reflections. Elytral surface completely smooth, striae continuously impressed in basal 1/8, without or with few punctures, 3 setiferous pores on interval 3. Abdominal sternum VII with 4+4 setiferous punctures.

Measurements and variation.

Variation of measurements (mm) and ratios for Semiardistomis semipunctatus (n=18) are: HL = 0,46–0,58–0,65; PL 0,93–1,07–1,16; PW 0,95–1,14–1,28; EL 2,25–2,78–3,06; EW 1,38–1,69–1,88; SBL 3,70–4,43–4,86; PW/EW 0,68; PW/PL 1,07; PL/EL 0,39; EW/EL 0,61.

Morphological variation is observed in the elytral punctures. In three different samples from Sta Catarina, Nova Teutonia, Brazil, exemplars with this form are mixed with exemplars of Semiardistomis deletus together with intermediate forms.

Geographical distribution

(Fig. 58). The known range of this species is confined to a South American area south of the Tropic of Capricorn, extending from southeastern Brazil westward to western Argentina, and south to southern Uruguay.

Material examined.

ARGENTINA. Buenos Aires Delta Parana Jan 1943 (IRSNB, 2). BRAZIL. Campos (HECO, 2); Nova Teutonia (IRSNB, 16); Nova Teutona Sta Catarina Nov 1955 (MHNP, 8); Sta Catarina Nov 1970 (USNM, 21). URUGUAY. Montevideo (IRSNB, 4).

Distribution map, illustrations of exemplar left elytra, and variability of members of the labialis species–group in South America. Value inside symbol indicates portion of basal elytra in which striae are impressed, (C, complete impressed). Scale bar 1 mm.

PutzeysJAAH (1846) Monographie des Clivina et genres voisins, précédée d’un tableau synoptique des genres de la tribu des scaritides.Mémoires de la Société Royale des Sciences de Liège 2: 521-663.CsikiE (1931) Carabidae: Harpalinae V (Pars 115). In: JunkWShenklingS (Eds). Coleopterorum catalogus.Volume II. Carabidae II, W. Junk, Berlin: 739-1022.BlackwelderRE (1944) Checklist of the coleopterous insects of Mexico, Central America, The West Indies, and South America. Part 1.Smithsonian Institution, United States National Museum Bulletin 185: 1-188.LorenzW (2005) Systematic list of extant ground beetles of the world (Insecta, Coleoptera “Geadephaga”: Trachypachidae and Carabidae, incl.Paussinae, Cicindelinae, Rhysodinae). W. Lorenz, Tutzing, 530 pp.KultK (1950) New Neotropical species of the group Ardistominina (Carabidae, Col.).Arthropoda 1: 299-325.ErwinTL (2011) A Treatise on the Western Hemisphere Caraboidea (Coleoptera): Their classification, distributions, and ways of life Volume III (Carabidae – loxomeriformes, melaeniformes).Pensoft, Sofia-Moscow, 412 pp.DejeanPFMA (1831) Species général des Coléoptères, de la collection de M.le Comte Dejean. Tome cinquième. Méquignon-Marvis, Paris, 883 pp.