Darwin wasps of the genus Seticornuta Morley, 1913 (Ichneumonidae: Metopiinae) in the Neotropical region, with a key to species
Author
Alvarado, Mabel
969AA574-A398-4087-BCF9-98CB8ABDC91F
Departamento de Entomología, Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Av. Arenales 1256 Jesús María, Lima 14, Perú and Bosque Llaqta, Avenida Confraternidad Internacional Este N ° 364, Huaraz, Perú.
malvaradog@unmsm.edu.pe
text
European Journal of Taxonomy
2022
2022-10-10
839
149
175
http://dx.doi.org/10.5852/ejt.2022.839.1939
journal article
10.5852/ejt.2022.839.1939
0031102a-1f65-422c-987f-0c370fc5f518
2118-9773
7195158
E4615884-F227-4551-AB5A-A60482E8DE37
Seticornuta muqui
sp. nov.
urn:lsid:zoobank.org:act:
89DC4237-A8C6-4065-BED2-57EC655B8856
Figs 6
,
10H
,
11B
Diagnosis
This species can be recognized by this combination of features: pronotum and mesoscutum black, and metapleuron three-sided with the dorsal margin evenly down-curved. It is quite similar to
S. cortesi
but it can be differentiated by the ventrally tawny metafemur (vs entirely black) and tergite II tawny (vs black centrally and laterally yellow).
Fig. 6.
Details of
Seticornuta muqui
sp. nov.
, ♀, holotype (MUSM).
A
. Habitus, lateral view.
B
. Facial view. Scale bar = 1 mm.
Etymology
The specific epithet ‘muqui’ is in reference to the mythological creature from the central Andes, that is believed to be a miner. It is treated as a noun in apposition.
Material examined
Holotype
PERU •
♀
; “
PERU
,
AP.
Mina Las Bambas
,
Sector Saqrapeña
14°4′37.24″S
/
72°18′33″W
4265m
24.iv– 03.v.2017
L. Figueroa
”;
MUSM
.
Description
Female
MEASUREMENTS. Body length
5.1 mm
. Fore wing length
3.6 mm
.
HEAD. Face+clypeus 1.0 × as wide as long;labrum not exposed when mandibles closed; malar space 0.7 × as long as basal mandibular width; lateral ocellus separated from compound eye by 1.7 × ocellar diameter; distance between ocelli 2.0 × maximum ocellar diameter; head posteriorly behind ocellar triangle flat; gena, on lateral view, 1.1 × as long as compound eyes; occipital carina incomplete, present only dorsally; antenna with 27 flagellomeres, ratio of length from second to fourth flagellomeres: 1.4:1.3:1.3, subapical flagellomere 1.5 × as long as centrally wide.
MESOSOMA. Epicnemial carina complete; metapleuron with dorsal margin evenly declivous, polished, glabrous; submetapleural carina smooth, anteriorly expanded into a conspicuous lobular lobe. Propodeum with lateromedian longitudinal carina strong, slightly closer subbasally; lateral longitudinal carina strong, absent anterior to spiracle; posterior transverse carina absent. Fore wing with Cu1a between Cu1b and 2m-cu 1.5 × as long as Cu1 between Rs&M and 1m-cu. Hind wing with distal abscissa of Cu1 faint but discernible, distal abscissa of M absent.
METASOMA. Metasoma with tergite I 1.3 × as long as posteriorly wide, lateromedian carinae extending 0.2 × length of tergite; tergite II 0.9 × as long as posteriorly wide; laterotergite II 0.4 × as long as wide, subrectangular; laterotergite III 0.6 × as long as wide, subrectangular.
COLOR. Head and mesosoma black, distal yellow spot on profemur; protibia anteroventrally and femur ventrally tawny; wings hyaline; metasoma black, tergite I laterally and posteriorly, tergite II, tergites III–IV anteriorly, laterally and posteriorly, tergite V laterally tawny.
Male
Unknown.
Remarks
Seticornuta muqui
sp. nov.
occurs in Puna grasslands. It is the first species of
Seticornuta
to be found in
Peru
and is the species found at the highest elevation (
Fig. 11B
). The individual described here was captured in areas where Las Bambas copper mine has a restoration program for the endemic shrub
Nototriche armeriifolia
A.W. Hill
(
Malvaceae Juss.
); this area was surveyed three times a year (2017– 2021) with a protocol that included pan traps, Malaise traps and pitfall traps. During this time only the
one specimen
of
S. muqui
sp. nov.
was collected, suggesting that this species occurs at a low density.