Pelecium laeve Chaudoir, 1854

Orsetti, Artur & Lopes-Andrade, Cristiano, 2024, A contribution to the taxonomy of the genus Pelecium Kirby (Coleoptera: Carabidae: Peleciini), European Journal of Taxonomy 922, pp. 1-61 : 36-37

Pelecium laeve Chaudoir, 1854

Figs 9I–P , 16A , 17D , 21H , 22E , 27

Specimens examined

BRAZIL • 1 ♂, 3 ♀♀; Rio Grande do Sul, Porto Alegre, LAMI Ponta do Cego ; 7–27 Jul. 2006; R. Moraes leg.; FZBRS • 9 ♂♂, 2 ♀♀; Rio Grande do Sul, Porto Alegre, LAMI Ponta do Cego ; 21 Oct.–9 Nov. 2005; R. Moraes leg.; FZBRS • 1 ♂; Rio Grande do Sul, Porto Alegre, LAMI Ponta do Cego ; 5–16 Jan. 2006; R. Moraes leg.; FZBRS • 1 ♂, 1 ♀; Rio Grande do Sul, Montenegro; 7 Jul. 1977; H. Bischoff leg.; FZBRS • 1 ♂; Paraná, Cap. Leonidas Maeques; 25 Mar. 1993; A.B. Bonaldo leg.; FZBRS • 1 ♀; Rio de Janeiro, Nova Friburgo; Dec. 2001; E. Grossi leg.; CAMB .

Notes

In Straneo & Ball (1989) the geographical distribution of P. laeve is restricted to “ Espiritu Santo ” (probably a misspelling of the state of Espírito Santo), but the lectotype and the paralectotype are labelled “Novofriburgo”, referring to “Nova Friburgo”, a city in the state of Rio de Janeiro. Those specimens are from the Atlantic province, in the Paraná biogeographic dominion. The new records are from Pampean province in the Chacoan subregion and from the Paraná Forest dominion in the Paraná dominion.

Complementary description

ABDOMINAL TERGITE IX ( Fig. 9M ). Oval, asymmetrical, sides converging to short-pointed projection expanded at base; inner anterior angle rounded; base rounded.

AEDEAGUS ( Fig. 9K–L, N–O ). With median lobe ( Fig. 9K–L ) cylindrical, elongate, asymmetrical, slightly broadening apically; ostium short, confined to apical third; apical lamella short, abruptly narrowed, apical edges narrow; basal bulb thin; parameres ( Fig. 9N–O ) asymmetrical; left paramere longer and thinner than right paramere.

GONOCOXITE 1 ( Fig. 9P ). Outer and inner sides arcuate; inner side forming acute projection on posterior margin; anterior margin dull.

GONOCOXITE 2 ( Fig. 9P ). Elongate; basal lobe bearing ensiform setae on each side; ensiform setae long, with one-third to half the length of gonocoxite 2; slender setae at apex.

MEASUREMENTS (in mm). Males (n = 13): AL1 0.3–0.6 (0.26 ± 0.05), AL2 0.2–0.3 (0.26 ± 0.05), EL 3.4– 5.1 (4.08 ±0.53), EW 2.4–3.4 (2.89 ± 0.28), PL 1.8–2.8 (2.33 ±0.28), PW 1.7–2.7 (2.22 ±0.27), HL 1.0– 1.4 (1.15± 0.12), HW 1.3–2.0 (1.62 ± 0.17), TL 6.2–9.3 (7.57± 0.88), TL/EW 2.5–2.7 (2.61± 0.06), lp2L 0.3–0.5 (0.36 ±0.07), lp3L 0.4–0.5 (0.46 ± 0.05), lp3 W 0.2 –0.3 (0.22 ± 0.04), mp3L 0.1–0.2 (0.18± 0.04), mp4L 0.4–0.5 (0.44 ± 0.05), mp4 W 0.2 –0.3 (0.22 ± 0.04). Females (n = 7): AL1 0.4–0.6 (0.49± 0.07), AL2 0.2–0.3 (0.23 ± 0.05), EL 4.0–5.4 (4.39 ± 0.53), EW 2.7–3.4 (3.01 ±0.27), PL 2.2–3.0 (2.49± 0.31), PW 2.1–2.8 (2.36 ±0.25), HL 1.0–1.4 (1.2± 0.14), HW 1.5–2.0 (1.73± 0.21), TL 7.3–9.8 (8.07± 0.95), TL/EW 2.5–2.9 (2.68 ± 0.15), lp2L 0.3–0.4 (0.36 ± 0.05), lp3L 0.4–0.5 (0.44± 0.05), lp3 W 0.1 –0.2 (0.17 ± 0.05), mp3L 0.2–0.2 (0.2 ± 0.0), mp4L 0.4–0.5 (0.41± 0.04), mp4 W 0.2 –0.3 (0.23 ±0.05).

Figures

Fig. 9. A–H. Pelecium helenae Straneo & Ball, 1989, male from Piraquara, Paraná, Brazil (A–G) (CERPE) and female from Mogi das Cruzes, São Paulo, Brazil (H) (CEMT). A. Dorsal view. B. Detail of head. C–D. Median lobe. E. Tergite IX. F. Left paramere. G. Right paramere. H. Genitalia. – I–P. Pelecium laeve Chaudoir, 1854, male from Porto Alegre, Rio Grande do Sul, Brazil (I–O) (FZRBS) and female from Porto Alegre, Rio Grande do Sul, Brazil (P) (FZRBS). I. Dorsal view. J. Detail of head. K–L. Median lobe. M. Tergite IX. N. Left paramere. O. Right paramere. P. Genitalia. Scale bars: A–B, I–J = 1 mm; C–H, K–P = 0.5 mm.

Fig. 16. Types of Pelecium Kirby, 1817, dorsal view. A. Pelecium laeve Chaudoir, 1854, holotype (MNHN), photograph by Azadeh Taghavian. B. Pelecium longicolle Straneo, 1953, allotype (MCSN), photograph by Michele Zilioli. C. Pelecium negrei Straneo, 1962, holotype (MCSN), photograph by Michele Zilioli. D. Pelecium nicki Straneo, 1955, holotype (MCSN), photograph by Michele Zilioli. Scale bars: 1 mm.

Fig. 17.Types of Pelecium Kirby, 1817, dorsal view.A. Pelecium nicki Straneo, 1955, paratype (MCSN), photograph by Michele Zilioli. B. Pelecium obtusum Straneo, 1953, holotype (MCSN), photograph by Michele Zilioli. C. Pelecium paulae Straneo & Ball, 1989, holotype (MCSN), photograph by Michele Zilioli. D. Pelecium politum Schaum, 1860, syntype (MUB), junior synonym of Pelecium laeve Chaudoir, 1854, photograph by Bernd Jaeger. Scale bars: 1 mm.

Fig. 21.Labels of type specimens of some species of Pelecium Kirby, 1817. A. Pelecium cyanipes Kirby, 1817, holotype (BMNH), photograph by Keita Matsumoto. B. Pelecium drakei Quedenfeldt, 1890, lectotype (MUB), photograph by Bernd Jaeger. C. Pelecium fulgidum Straneo, 1962, holotype (MCSN), photograph by Michele Zilioli. D. Pelecium fulgidum, allotype (MCSN), photograph by Michele Zilioli. E. Pelecium helenae Straneo & Ball, 1989, holotype (MZSP), photograph by Guilherme Ide.F. Pelecium helenae, paratype (MCSN), photograph by Michele Zilioli. G. Pelecium helenae, allotype (MCSN), photograph by Michele Zilioli. H. Pelecium laeve Chaudoir, 1854, holotype (MNHN), photograph by Azadeh Taghavian. I. Pelecium longicolle Straneo, 1953, allotype (MCSN), photograph by Michele Zilioli. J. Pelecium negrei Straneo, 1962, holotype (MCSN), photograph by Michele Zilioli.

Fig. 22. Labels of type specimens of some species of Pelecium Kirby, 1817. A. Pelecium nicki Straneo, 1955, holotype (MCSN), photograph by Azadeh Taghavian. B. Pelecium nicki, paratype (MCSN), photograph by Azadeh Taghavian. C. Pelecium obtusum Straneo, 1953, holotype (MCSN), photograph by Azadeh Taghavian. D. Pelecium paulae Straneo & Ball, 1989, holotype (MCSN), photograph by Azadeh Taghavian. E. Pelecium politum Schaum, 1860, syntype (MUB), junior synonym of Pelecium laeve Chaudoir, 1854, photograph by Bernd Jaeger.F. Pelecium punctatostriatum Straneo, 1970,paratype (MCSN), photograph by Azadeh Taghavian. G. Pelecium punctatum Straneo, 1953, holotype (MCSN), photograph by Azadeh Taghavian. H. Pelecium renati Straneo, 1953, holotype (MCSN), photograph by Azadeh Taghavian. I. Pelecium rotundipenne Schaum, 1860, lectotype (MUB), photograph by Bernd Jaeger. J. Pelecium rotundipenne, paralectotype (MUB), photograph by Bernd Jaeger. K. Pelecium semistriatum Straneo & Ball, 1989, allotype (MCSN), photograph by Azadeh Taghavian.

Fig. 27. Map highlighting part of South America with the known occurrences, including new records, of Pelecium laeve Chaudoir, 1854, P. negrei Straneo, 1962, P. purpureum Straneo, 1955, P. striatum Straneo, 1955 and P. violaceum Brullé, 1838.