Integrative taxonomy of the genus Dyscolus (Coleoptera, Carabidae, Platynini) in Ecuadorian Andes
Author
Moret, Pierre
2E194645-D255-438B-819E-A2B6C39AD699
Laboratoire TRACES (UMR 5608), CNRS, Université Toulouse 2 Jean Jaurès, Toulouse 31058, France.
pierre.moret@univ-tlse2.fr&pierre.moret@univ-tlse2.fr
Author
Murienne, Jérôme
3A6964D4-A7D6-46DB-8129-B762D14BC8F9
Laboratoire Evolution et Diversité Biologique (UMR 5174), CNRS, Université Toulouse 3 Paul Sabatier, IRD, Toulouse 31062, France.
jerome.murienne@univ-tlse3.fr
text
European Journal of Taxonomy
2020
2020-05-15
646
1
55
journal article
22092
10.5852/ejt.2020.646
c5cf0da1-13e3-4bf4-844c-9b5a9d4f6d5b
3829682
4C9F63B2-DB17-4EDB-ADEE-13AC9EFB921B
Dyscolus verecundissimus
Moret
sp. nov.
urn:lsid:zoobank.org:act:
CD4CC133-EF1C-4F71-8F38-0E954A5F94B4
Figs 55
,
59
Dyscolus verecundus
Moret, 1998: 20
,
pro parte.
Dyscolus
(
Dyscolus
)
verecundus
–
Moret 2005: 142
,
pro parte.
Etymology
Superlative form of the Latin adjective ‘
verecundus
’, which is the name of a related species.
Type material
Holotype
ECUADOR
•
♂
;
Chimborazo Province
,
Volcán Chimborazo Est
, moraine;
4470–4530 m
a.s.l.
;
4 Aug. 1998
;
P. Moret
leg.;
MNHN
.
Figs 54–55.
Dyscolus
spp., habitus.
54
.
D. verecundior
Moret
sp. nov.
, male holotype (MNHN, COI voucher PM136-04).
55
.
D. verecundissimus
Moret
sp. nov.
, male holotype (MNHN).
Paratype
ECUADOR
•
1 ♀
; same collection data as for holotype;
CPM
.
Diagnostic description
Habitus:
Fig. 55
. Very similar in almost every aspect to
D. verecundus
and
D. verecundior
Moret
sp. nov.
, so the description will be limited to the few distinctive characters of this new species. Body length:
11.5–11.9 mm
, as the biggest specimens of
D. verecundus
; head slightly broader with convex eyes; antennae thinner, the second antennomere 1.76 to 1.77 times as long as wide (1.41 to 1.65 times in
D. verecundus
and
D. verecundior
Moret
sp. nov.
); pronotum broader, 1.27 to 1.28 times as wide as long (1.13 to 1.24 times in
D. verecundus
and
D. verecundior
Moret
sp. nov.
); apical blade of the median lobe broader and more rounded at apex in dorsal view (
Fig. 59
); endophallus with a large sclerotized area at middle, and a reduced, almost obsolete squamose area near apex (two sclerotized areas of similar size in
D. verecundus
and
D. verecundior
Moret
sp. nov.
).
Habitat
Humid superpáramo at around
4500 m
a.s.l.
Figs 56–59.
Group of
Dyscolus verecundus
Moret, 1998
, male aedeagus, median lobe in lateral and dorsal view.
56
.
D. verecundus
, paratype from Rucu Pichincha.
57
.
D. verecundus
, paratype from Guagua Pichincha.
58
.
D. verecundior
Moret
sp. nov.
, holotype (MNHN, COI voucher PM136- 04);.
59
.
D. verecundissimus
Moret
sp. nov.
, holotype (MNHN).
Geographic distribution
Microendemic species, restricted to the
Chimborazo
volcano in the Western Cordillera.
Comments
The isolated population we raise here to species rank was initially assigned to
D. verecundus
by
Moret (2005)
. There are more morphological differences between
D. verecundissimus
Moret
sp. nov.
and the pair of sister species
D. verecundus
and
D. verecundior
Moret
sp. nov.
than between the two latter, especially in the male aedeagus.