A contribution to the taxonomy of the genus Pelecium Kirby (Coleoptera: Carabidae: Peleciini)
Author
Orsetti, Artur
F6079258-BAF5-4A31-8E6F-4172967410CE
Pós-Graduação em Ecologia, Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570 - 900, Viçosa, Minas Gerais, Brazil. & Laboratório de Sistemática e Biologia de Coleoptera, Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
arturorsetti@gmail.com
Author
Lopes-Andrade, Cristiano
525ABCB9-3334-407E-9084-F0784968D290
Laboratório de Sistemática e Biologia de Coleoptera, Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
cristiano.lopes@ufv.br
text
European Journal of Taxonomy
2024
2024-02-26
922
1
61
https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2443/10823
journal article
10.5852/ejt.2024.922.2443
2118-9773
10715279
CEE6866E-B1DD-4BF9-8461-FA99D0A9FE9A
Pelecium belloi
sp. nov.
urn:lsid:zoobank.org:act:
7959B9EA-F55F-4ED2-98F1-DC4CC6383E2A
Figs 2I–K
,
25
Diagnosis
A medium-sized species (
10 mm
) distinguishable among other congeners by the combination of the following features. Head frontal fovea punctiform (
Fig. 2J
). Pronotum median line fine and shallow; posterior impressions shallow, inconspicuous. Elytra ovate, without any deeply impressed striae (
Fig. 2I
). Adults of
P. belloi
sp. nov.
and
P. laeve
are quite similar, as both have no deeply impressed elytral striae, but in the former species the pronotum is slightly wider than long, with sides arcuate and shortly subsinuate posteriorly, while in the latter the pronotum is elongate and slender, with sides equally arcuate throughout their lengths.
Etymology
The specific epithet
‘
belloi
’ is an eponym in honor of the Brazilian coleopterist Ayr de Moura Bello, who lent us
Carabidae
beetles important for the present work and other taxonomic and morphological studies in progress.
Type material
Holotype
BRAZIL
•
♀
;
São Paulo
,
São Luis do Paraitinga
,
Parque Estadual Serra do Mar Núcleo Sta. Virgínia
;
Nov. 2004
;
M. Uehara
leg.; “\\ Coleção A.M.
BELLO
\\
Pelecium belloi
Orsetti & Lopes-Andrade
HOLOTYPUS
” [printed on red paper];
CAMB
.
Paratypes
BRAZIL
•
3 ♀♀
; same collection data as for holotype;
1 Jan. 2005
; “\\ Coleção A.M.
BELLO
\\
Pelecium belloi
Orsetti & Lopes-Andrade
PARATYPUS
” [printed on yellow paper];
CAMB
.
Description
Female
(
holotype
, fully pigmented adult)
MEASUREMENTS
(in mm). AL1 0.6, AL2 0.3, EL 4.7, EW 3.5, PL 2.6, PW 2.6, HL 1.3, HW 1.9, TL 8.6, TL/EW 2.5, lp2L 0.5, lp3L 0.5, lp3
W 0.2
, mp3L 0.2, mp4L 0.5, mp4
W 0.2
.
BODY
. Ovate, flat; disc of head, pronotum and elytra shiny black, with purple and green reflections on sides in dorsal view; glabrous (
Fig. 2I
). Ventral surface shiny black.
HEAD
. Microreticulate; frontal foveae shallow, punctiform (
Fig. 2J
). Antennae reddish brown, long, reaching anterior portion of elytra; antennomeres 1–3 with few long, sparse yellowish setae on apical portion; antennomeres 4–11 fully covered by short yellowish setae. Apical labial and maxillary palpomeres with long, sparse yellowish setae; ovate with apex obliquely truncated; reddish brown, apicalmost portion lighter.
PRONOTUM
. Slightly wider than long; sides arcuate, shortly subsinuate posteriorly, each with pair of long setae; median line narrow, shallow; posterior impressions shallow, inconspicuous.
ELYTRA
. Ovate, without any deeply impressed striae; three striae faintly impressed; in between striae shiny and impunctate.
LEGS
. Dark reddish brown; protarsomeres 1–4 expanded, ventrally with vestiture of adhesive setae; protibiae expanded at apex, with few long yellowish setae ventrally and around antennal cleaner;
mesotibiae slender, with few long yellowish setae laterally throughout their lengths; metatibiae slender, with few long yellowish setae ventrally on apical half.
GONOCOXITE
1 (
Fig. 2K
). Outer and inner sides arcuate; inner side forming acute projection on posterior margin; anterior margin dull.
GONOCOXITE
2 (
Fig. 2K
). Subtriangular; apex rounded; basal lobe with ensiform setae on each side; ensiform setae long, with half to one-third the length of gonocoxite 2; apex with slender setae.
Male
Unknown.
Variation
All specimens examined are females and, among all, the one in the best condition was chosen as the
holotype
.
MEASUREMENTS
(in mm) (n= 4). AL1 0.6–0.9 (0.75 ± 0.13), AL2 0.3–0.4 (0.33 ± 0.05), EL 4.7–7.0 (5.6 ± 0.99), EW 3.5–4.6 (3.83 ±0.53), PL 2.6–3.6 (2.95 ± 0.44), PW 2.6–3.6 (2.95 ± 0.44), HL 1.3–1.6 (1.38 ± 0.15), HW 1.9–2.0 (1.93± 0.05), TL 8.6–12.2 (9.93 ± 1.57), TL/EW 2.5–2.7 (2.59 ±0.09), lp2L 0.5–0.5 (0.5 ±0.0), lp3L 0.5–0.6 (0.53± 0.05), lp3
W 0.2
–0.2 (0.2 ± 0.0), mp3L 0.2–0.3 (0.28± 0.05), mp4L 0.5–0.7 (0.6 ± 0.08), mp4
W 0.2
–0.3 (0.25 ± 0.06).
Remarks
We include
P. belloi
sp. nov.
in the
P. laeve
species group due to the punctiform frontal impressions and the lack of elytral striation.