Pseudomicrocara livida Fabricius 1775
Creators: name: Libonatti, María Laura
name: Ruta, Rafał
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scirtidae
Pseudomicrocara
Pseudomicrocara livida

description: Pseudomicrocara livida (Fabricius, 1775)
(Figs. 5, 19, 20, 31, 50, 57, 58, 84–89)
Cistela livida Fabricius, 1775: 116 (type locality: Tierra del Fuego).
Dascillus lividus: Guérin-Méneville 1849: 8 (transferred to Dascillus as doubtful species); Kolbe 1907: 71 (Strait of Magellan); Bruch 1914: 236 (checklist; Tierra del Fuego).
Pseudomicrocara livida: Ruta 2013: 57 (redescription).
Diagnosis. Large size (TL: 5.34–6.02 mm; EW: 3.07–3.44 mm). Habitus elongate-broadly oval. Body color uniformly pale except for brown-maculated abdomen. Mandibles with spines on molar region, symmetrical, both lacking teeth. Male terminalia: tergite 8 with a pair of sclerotized apodemes converging posteriorly, posterior margin rounded, with setae; tergite 9 with a pair of subparallel sclerotized apodemes connected by a weakly sclerotized cross-piece, posterior margin bilobed, with setae; sternite 8 V-shaped, anterior margin pointed, with setae near posterior margin; sternite 9 with posterior margin bilobed, a pair of sclerotized apodemes widening posteriorly, with setae. Male genitalia: tegmen with basal margin emarginate, parameres broad at base, narrowing gradually to the middle, continuing very narrow to apex, apex acute, styli present; penis with lateral margins of basal piece converging posteriorly, basal margin rounded, trigonium with lateral margins slightly converging posteriorly to the middle of trigonium, continuing parallel to apex, apex truncate, curved ventrally, parameroids with one spine-like piece on each base, near internal margin, apex rounded. Female genitalia: prehensor composed of two symmetrical sclerites with a row of three to four spines on external margin, two symmetrical triangular sclerites and one elongated sclerite between the latter two; bursella with pores producing into cone-like structures lacking spines. Females lacking setal patch on ventrite 4.
Type material: Holotype, not sexed (NHM): Cistela livida [handwritten] / Fab. Entom. [printed] p. 116 n. 2 [handwritten].
Additional specimens: Tierra del Fuego Province: Fagnano Lake, Kaiken, 100 m, 18–19. i.1979, 1 ex., Misión Científica Danesa (ZMUC). Ushuaia, Lapataia, 20 m, 27–28. i.1979, 3 exx., 29-31. i.1979, 3 exx., Misión Científica Danesa (ZMUC).
Chubut Province: Esquel, Menéndez Lake, El Sagrario Puerto, 2–4.i. 1982, 600 m, 1 ex., Nielsen & Karsholt (ZMUC).
Río Negro Province: Nahuel Huapi National Park, Ñireco River, 41° 11’ 51.9” S 71° 19’ 40.5” W, 962 m, 23.i–18. ii.2007, 1 ex., Malaise, leg. Analía Garré & Fernanda Montes de Oca (MLP). Nahuel Huapi National Park, Grande stream, 41° 02’ 21.6” S 71° 48’ 27” W, 763 m, 4–25. ii.2007, 7 exx., Malaise, leg. Analía Garré & Fernanda Montes de Oca (NHM).
Neuquén Province: Paso Carirriñe, 15. ii.1966, 1 ex. (IADIZA). Pucará, october 1971, 2 exx. (IADIZA). Junín de los Andes, Laguna Verde, 1000 m, 11. iii.1979, 1 ex., Misión Científica Danesa (ZMUC). Nahuel Huapi National Park, Mallín La Heladera, 41° 00’ 56” S 71° 49’ 45.4” W, 878 m, 7.i–4. ii.2007, 8 exx., Malaise, leg. Analía Garré & Fernanda Montes de Oca (MLP).
Distribution. So far this species had only been found in Tierra del Fuego Province. Based on the material examined in this study, Neuquén, Río Negro and Chubut Provinces are added to the distribution range.
description: Published as part of Libonatti, María Laura & Ruta, Rafał, 2013, Review of the Argentinean species of Pseudomicrocara Armstrong (Coleoptera: Scirtidae), pp. 137-157 in Zootaxa 3718 (2) on pages 180-181, DOI: 10.11646/zootaxa.3718.2.3, http://zenodo.org/record/248524