Brevibarra scotosagis Jordan 1906
Creators: name: Trýzna, Miloš
name: Carrasco, Juan Carlos
name: Blažej, Lukáš
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Anthribidae
Brevibarra
Brevibarra scotosagis

description: Brevibarra scotosagis Jordan, 1906
(Figs 50, 62–75)
Brevibarra scotosagis Jordan, 1906: 313; tab. 10, fig. 20 (dorsal habitus). Wolfrum 1929: 65 (catalogue); Blackwelder 1947: 769 (catalogue); Valentine 1960: 68 (short notes on taxonomy); Valentine 1998: 271 (short notes on taxonomy); Rheinheimer 2004: 70 (catalogue); Rheinheimer 2016: 263 (new records for French Guiana), 270 (dorsal habitus, fig. 27); Orellana & Barrios 2021: 34 (dorsal habitus, fig. 43), 36 (new data on distribution for Panama), 38 (lateral habitus, fig. 48).
Type locality. Panama, Bugaba.
Type material. Holotype, female (Figs 68–72): ‘Type [p, typical round label with red margin used in BMNH]’ // ‘Bugaba, / Panama. / Champion. [p]’ // ‘B.C.A. Col. IV.6. [p]’ // ‘ Brevibarra / scotosagis, / Jordan. [p]’ // ‘Sp. figured. [p]’ // ‘ Brevibarra / scotosagis. Type / Jord. 1906. [p] (BMNH)’. One male, two females: ‘Bugaba, / Panama. / Champion. [p] [specimens from type series, but not labelled as paratypes]’ (BMNH).
Other material: 2 males, 2 females: ‘ Ecuador, 4.– 8.12.2004 / prov. Sucumbios, Shushufindi / (S 0°11´, W 76°38´) / 200–400 m, Petr Baňař lgt.’ // ‘ Brevibarra / n. sp. / det: B. D. Valentine´10 [= 2010]’ // ‘ Brevibarra / scotosagis Jord. / M. Trýzna det. 2022’ // ‘compared / with type’ (MTDC). 1 male [specimen with dissected terminalia, Figs 62, 64–67], 1 female: ‘ Ecuador, Loreto env., 26.–28.ii. / 2022, Carachupa Pakcha, / circuit Curi Ňamby, 285 m, / S 0°33´28.4´´, W 77°10´05.6´´, / M. Trýzna & J.C. Carrasco leg.’ // ‘ Brevibarra / scotosagis Jord. / M. Trýzna det. 2022’ // ‘compared / with type’ (1 male in MTDC, 1 female in MERC). 1 female: ‘ Brasilien / leg. Lindemann’ // ‘Utinga Bei / Belem 18.X.02’ // ‘ Brevibarra / sp. n.’ [h, Frieser´s handwriting] // ‘ Brevibarra / scotosagis Jord. / M. Trýzna det. 2022’ // ‘compared / with type’ (MTDC). 1 specimen: ‘ Costa Rica, Cartago / Turrialba. 650 m / 24. Feb. 1980 / H. & A. Howden’ // ‘ Brevibarra / scotosagis / Jord. / det: B.D.Valentine´90’ [= 1990] (CMNC).
Note: The original description (Jordan, 1906) states that one female is ‘the type’, without clearly stating which female. The figured female specimen is labelled by Jordan as ‘type’ as in ICZN Recommendation 73A, and complies with ICZN Article 73.1.1 as a holotype fixed by original designation.
Although the specimen from Ecuador was labelled by Valentine as ‘ Brevibarra n. sp. ’, in fact it is Brevibarra scotosagis. Valentine states (1960: 68) that the type of B. scotosagis was the only type from the entire tribe Piesocorynini that he had never seen. We can only speculate, that he never had the opportunity subsequently to see this type. Due to the great distance from the type locality, he may have assumed that it must belong to a different species. Frieser may have been of the same opinion. The first author found no different morphological characters on these specimens when compared with the type.
Identification. Dorsal transverse carina antebasal, completely straight, widely rounded at contact with lateral carinae of pronotum, these very short, rather only indicated, basal longitudinal carinulae only weakly developed. Eyes relatively large, oval, not emarginate, only imperceptibly truncated in anterior part, dorsal ocular index 1.40 in male, 2.35 in female.
Antennae short, reach maximally to posterior margin of pronotum in both sexes. Upper side of the body generally brownish. Disc of pronotum with one distinct longitudinal light-coloured stripe (interrupted in middle) continuing on pronotal declivity. Elytra with wide transverse black band, humeral and preapical part brownish coloured. Body size ca. 3.5–6.0 mm. Colour pattern as in Figs 62, 68–72.
Holotype, female (Figs 68–72). Measurements (in mm): Total body length—4.90. Head: total length—1.00, length of rostrum—0.53, maximum width of rostrum—0.90, length of eye—0.50, maximum width across eyes— 1.18, minimum distance between eyes—0.53. Antenna: length of segments: II—0.16, III—0.25, IV—0.14, V— 0.11, VI—0.09, VII—0.09, VIII—0.09, IX—0.19, X—0.13, XI—0.19, width of segment IX—0.20. Pronotum: maximum length—1.35, maximum width—1.80, minimum width—1.05. Elytra: maximum length—2.33, maximum width—2.00. Pygidium: maximum length—0.47, maximum width—0.57.
Male genitalia and associated structures (Figs 64–67; specimen from Ecuador, Loreto env., Fig. 62, MTDC). Aedeagus (Figs 64–65) long, narrow, the same width throughout its length. Tectum and pedon relatively narrow, both the same length, both quite pointed apically. Apodemes of aedeagus long, parallel. Bridge of aedeagus well developed. Tegmen (Fig. 66) slender, basal piece sclerotized, apodeme of tegmen straight, the same length as the body of tegmen. Tegminal plate distinctly slender. Apex of tegmen constricted, skittle-shaped, with short setae. Segment VIII (Fig. 67) longer than wide, subrectangular, sides broadly emarginated inwards, anterior margin of tergite VIII shallowly sinusoidal. Sternite IX (Fig. 67) with symmetrical arms, length of arms ca. half as long as apodeme, arms slightly convergent, apodeme almost straight.
Distribution. Panama (Jordan 1906; Rheinheimer 2004, 2016; Orellana & Barrios 2021), French Guiana (Rheinheimer 2016). The specimens from Brazil and Ecuador represent new country records (Figs 63, 75).
description: Published as part of Trýzna, Miloš, Carrasco, Juan Carlos & Blažej, Lukáš, 2022, Review of the Neotropical genera Barra Jordan and Brevibarra Jordan, with description of a new species of Barra from Nicaragua, notes on the tribe Piesocorynini Valentine, and new records of Brevibarra from Brazil and Ecuador (Coleoptera: Anthribidae), pp. 243-268 in Zootaxa 5213 (3) on pages 260-265, DOI: 10.11646/zootaxa.5213.3.3, http://zenodo.org/record/7359947