Pelecium striatum Straneo, 1955

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 : 40-42

Pelecium striatum Straneo, 1955

Figs 11I–P , 19D , 23B , 27

Specimens examined

BRAZIL • 1 ♂; Santa Catarina, R. Vermelho; MZSP • 1 ♀; Santa Catarina, Corupá; MZSP • 1 ♂; Santa Catarina, Corupá; Oct. 1937; A. Maller leg.; MZSP • 1 ♀; Santa Catarina, Corupá; Nov. 1937; A. Maller leg.; MZSP • 1 ♀; Santa Catarina, Corupá; Feb. 1954; A. Maller leg.; MZSP .

Notes

This species was known only from the state of Santa Catarina, South Region, Brazil. The new records are from the Araucaria Forest province, while the holotype is from the Atlantic province, both in the Chacoan dominion.

Complementary description

ABDOMINAL TERGITE IX ( Fig. 11M ). Oval, subelongate, asymmetrical; sides arcuate; posterior third rounded; anterior portion converging to a flat projection.

AEDEAGUS ( Fig. 11K–L, N–O ). With median lobe ( Fig. 11K–L ) cylindrical, asymmetrical; sides in apical fourth sinuous; ostium short, confined to apical third; apical lamella moderately long, narrowed to a square apex; apical edges sharp. Parameres ( Fig. 11N–O ) asymmetrical; left paramere longer and thinner than right paramere, square.

GONOCOXITE 1 ( Fig. 11P ). Outer and inner sides arcuate, forming acute projection on posterior margin; anterior margin dull.

GONOCOXITE 2 ( Fig. 11P ). Elongate; basal lobe bearing ensiform setae on each side; ensiform setae long, with half the length of gonocoxite 2; slender setae at apex.

MEASUREMENTS (in mm). Male (n = 2): AL1 1.0–1.1 (1.05 ±0.07), AL2 0.6–0.6 (0.6 ±0.0), EL 6.9–7.2 (7.05 ± 0.21), EW 5.0–5.2 (5.1 ±0.14), PL 4.0–4.1 (3.8± 4.1), PW 3.8–4.1 (3.95 ±0.21), HL 1.9–2.0 (1.95± 0.07), HW 2.6–2.9 (2.75± 0.21), TL 12.9–13.2 (13.05 ± 0.21), TL/EW 2.5–2.6 (2.56± 0.03), lp2L 0.8–0.8 (0.8 ±0.0), lp3L 0.9–0.9 (0.9 ±0.0), lp3 W 0.6 –0.6 (0.6 ± 0.0), mp3L 0.4–0.4 (0.4 ± 0.0), mp4L 0.8–0.9 (0.85± 0.07), mp4 W 0.5 –0.6 (0.55 ± 0.07). Females (n = 3): AL1 1.0–1.1 (1.03± 0.06), AL2 0.5–0.6 (0.53 ±0.06), EL 6.8–7.1 (6.93 ±0.15), EW 4.9–5.0 (4.97 ± 0.06), PL 3.5–3.9 (3.7 ±0.2), PW 3.8–4.1 (3.93 ± 0.15), HL 1.8–2.0 (1.9± 0.1), HW 2.6–2.8 (2.67± 0.12), TL 12.2–12.7 (12.53 ±0.29), TL/ EW 2.4–2.6 (2.52± 0.08), lp2L 0.6–0.7 (0.65± 0.07), lp3L 0.8–0.8 (0.8 ± 0.0), lp3 W 0.2 –0.2 (0.2 ± 0.0), mp3L 0.3–0.3 (0.3 ± 0.0), mp4L 0.7–0.8 (0.73 ± 0.06), mp4 W 0.3 –0.3 (0.3 ±0.0).

Figures

Fig. 11. A–H. Pelecium purpureum Straneo, 1955, male from Alto Caparaó, Minas Gerais, Brazil (A–G) (CELC) and female from Viçosa, Minas Gerais, Brazil (H) (CELC). 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 striatum Straneo, 1955, male from Corupá, Santa Catarina, Brazil (I–O) (MZSP) and female from Corupá, Santa Catarina, Brazil (P) (MZSP). 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. 19. Types of Pelecium, Kirby, 1817, dorsal view. A. Pelecium rotundipenne Schaum, 1860, paralectotype (MUB), photograph by Bernd Jaeger. B. Pelecium semistriatum Straneo & Ball, 1989, allotype (MCSN), photograph by Michele Zilioli. C. Pelecium striatipenne Chaudoir, 1866, holotype (MNHN), photograph by Azadeh Taghavian. D. Pelecium striatum Straneo, 1955, holotype (MCSN), photograph by Michele Zilioli. Scale bars: 1 mm.

Fig. 23. Labels of type specimens of some species of Pelecium Kirby, 1817. A. Pelecium striatipenne Chaudoir, 1866, holotype (MNHN), photograph by Azadeh Taghavian. B. Pelecium striatum Straneo, 1955, holotype (MCSN), photograph by Azadeh Taghavian. C. Pelecium tenellum Schaum, 1860, holotype (MUB), photograph by Bernd Jaeger.

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.