Pelecium purpureum 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 : 39-40

Pelecium purpureum Straneo, 1955

Figs 11A–H , 27

Specimens examined

BRAZIL • 1 ♂; Minas Gerais, Alto Caparaó, PARNA Caparaó ; 6–10 Nov. 2016; A. Orsetti and S. Aloquio leg.; CELC • 1 ♂, 1 ♀; Minas Gerais, Viçosa, Mata da Biologia ; 2012; S. Aloquio and A. Puker leg.; CELC • 1 ♂; Espírito Santo, Venda Nova do Imigrante, Lavrinhas ; 10–14 Jan. 2011; F.Z. Vaz-de-Mello leg.; CEMT .

Notes

The only two previously known specimens of P. purpureum were the male holotype and an additional specimen labelled only with state information (“ Espirito Santo ”). The new reports are from the Atlantic and the Paraná Forest provinces, both in the Paraná dominion.

Complementary description

ABDOMINAL TERGITE IX ( Fig. 11E ). Oval, slightly asymmetrical; sides subparallel, converging to projection at base; inner anterior angle rounded; apex rounded.

AEDEAGUS ( Fig. 11C–D, F–G ). With median lobe ( Fig. 11C–D ) cylindrical, elongate, asymmetrical, sinuous, slightly broadening apically; ostium short, confined to apical fourth; apical lamella short, evenly narrowed; basal bulb thin; parameres ( Fig. 11F–G ) asymmetrical; left paramere elongate, longer and thinner than right paramere.

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

GONOCOXITE 2 ( Fig. 11H ). Elongate; basal lobe bearing ensiform setae on each side; ensiform setae long, with half length of gonocoxite 2; inner ensiform setae visibly longer than external setae; anterior margin dull, with a slender seta at apex.

MEASUREMENTS (in mm). Males (n = 3): AL1 0.9–1.0 (0.97 ±0.06), AL2 0.4–0.5 (0.47± 0.06), EL 5.7– 6.6 (6.03± 0.49), EW 4.5–5.2 (4.73 ±0.4), PL 3.2–3.8 (3.5 ±0.3), PW 3.3–3.7 (3.53 ±0.21), HL 1.7–1.8 (1.73± 0.06), HW 2.4–2.8 (2.57 ±0.21), TL 10.7–12.2 (11.27± 0.81), TL/EW 2.3–2.4 (2.38± 0.04), lp2L 0.6–0.7 (0.63 ± 0.06), lp3L 0.6–0.7 (0.63 ± 0.06), lp3 W 0.4 –0.5 (0.43± 0.06), mp3L 0.3–0.3 (0.03 ± 0.0), mp4L 0.6–0.7 (0.67 ±0.06), mp4 W 0.4 –0.4 (0.4± 0.0). Female (n = 1): AL1 1.0, AL2 0.5, EL 6.4, EW 4.5, PL 3.4, PW 3.5, HL 1.6, HW 2.4, TL 11.4, TL/EW 2.5, lp2L 0.6, lp3L 0.7, lp3 W 0.3, mp3L 0.3, mp4L 0.7, mp4 W 0.7.

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. 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.