Pseudomicrocara antarctica Fairmaire 1883, comb. nov.

• Main Authors: Libonatti, María Laura, Ruta, Rafał
• Format: Other/Unknown Material
• Language: unknown
• Published: 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Coleoptera; Scirtidae; Pseudomicrocara; Pseudomicrocara antarctica; Patagonia; Argentina; Chubut; Magallanes; Stripe; Antarc*; Antarctica; antarcticus; Tierra del Fuego
• Online Access: https://zenodo.org/record/5685339; https://doi.org/10.5281/zenodo.5685339

Pseudomicrocara antarctica (Fairmaire, 1883), comb. nov. (Figs. 2, 11–13, 28, 36, 37, 43 –46, 54, 55, 66– 71) Cyphon antarcticus Fairmaire, 1883: 493 (type locality: “Port S.-Elena” [Port Santa Elena, Chubut Province, Argentina]). Cyphon antarcticus: Fairmaire 1889: 115. Helodes antarcticus: Kolbe 1907: 71 (Tierra del Fuego). Cyphon antarcticus: Pic 1914: 29 (checklist; Patagonia); Bruch 1914: 236 (checklist; Tierra del Fuego). Cyphon antarcticum: Blackwelder 1944: 266 (checklist; Patagonia, Tierra del Fuego); Moroni 1985: 173 (provincia de Magallanes, Tierra del Fuego). Diagnosis. Habitus elongate, TL: 3.51–5.11 mm. Body testaceous with a brown stripe along elytral suture (sometimes continued on the external elytral margin). Mandibles with spines on molar region, slightly asymmetrical, both toothed, tooth of right mandible larger than tooth of left mandible. Male terminalia: tergite 8 with a pair of sclerotized apodemes converging posteriorly, posterior margin broadly rounded, with setae; tergite 9 with a pair of subparallel sclerotized apodemes connected by a weakly sclerotized cross-piece, posterior margin bilobed, without setae; sternite 8 V-shaped, anterior margin rounded, with setae near posterior margin; sternite 9 with posterior margin rounded, a pair of sclerotized apodemes diverging posteriorly, with setae. Male genitalia: tegmen with basal margin emarginated, parameres broad at base, gradually narrowing to apex, styli present; lateral margins of basal piece subparallel, basal margin rounded, trigonium approximately triangular, apex truncate, parameroids approximately parallel sided, abruptly narrowed to the apex, apex rounded. Female genitalia: prehensor composed of a pair of symmetrical larger sclerites located anteriorly and a pair of symmetrical smaller sclerites located posteriorly; bursella with pores produced into cylindrical structures bearing several thin apical projections, resembling asterisks. Sexual dimorphism in abdominal ventrite 4: female with a patch of setae. Type material: 2 ...