Two remarkable new species of Argyrophorus Blanchard from the Peruvian high Andes (Lepidoptera, Nymphalidae, Satyrinae)
Author
Pyrcz, Tomasz W.
Author
Gutiérrez, José Cerdeña
Author
Florczyk, Klaudia
text
Zootaxa
2019
2019-08-14
4656
2
375
383
journal article
26025
10.11646/zootaxa.4656.2.10
a813546a-5bf8-490d-8198-82f24ea7cf21
1175-5326
3368125
DA58A84A-DEE0-4370-B3C6-7B2DD23781AE
Argyrophorus rubrostriata
Pyrcz, Cerdeña & Florczyk
,
n. sp.
(
Figs. 1
G–J, 2A, 3A, 4G)
Type
locality.
Escalón
,
Cordillera Negra
,
Ancash
,
Peru
.
Type material.
Material examined:
HOLOTYPE
♂
:
PERU
, Depto.
Ancash
, Escalón,
4100–4150 m
,
10.
VI
.2019,
T. Pyrcz
leg., to be deposited in
MUSM
;
PARATYPES
(
54 ♂
and
20 ♀
)
:
35 ♂
and
10 ♀
: same data as the Ho- lotype;
19 ♂
and
10 ♀
, same locality
,
20.
VI
.2018
, leg. T. Pyrcz, P. Boyer, J. Cerdeña, J. Farfán, prep. genit.
♂
1384_
03.09.2018
/K.Florczyk, prep. genit.
♀
1381_
09.11.2018
/K.Florczyk, prep. mol. 458/
26.06.2018
, prep.mol. 459/
26.06.2018
; in
MUSM
,
MUSA
,
PBF
,
CEP-MZUJ
.
FIG. 1.
Adults: A.
Argyrophorus idealis
n. sp
.
male,
HOLOTYPE
, dorsal; B.
Argyrophorus idealis
n. sp
.
male,
HOLOTYPE
, ventral; C.
Argyrophorus idealis
n. sp
.
female,
PARATYPE
, dorsal; D.
Argyrophorus idealis
n. sp
.
female,
PARATYPE
, ventral; E.
Argyrophorus idealis
n. sp
.
female (individual form),
PARATYPE
, dorsal; F.
Argyrophorus idealis
n. sp
.
female (individual form),
PARATYPE
, ventral; G.
Argyrophorus rubrostriata
n. sp
.
, male,
HOLOTYPE
, dorsal; H.
Argyrophorus rubrostriata
n. sp
.
, male,
HOLOTYPE
, ventral; I.
Argyrophorus rubrostriata
n. sp
.
, female,
PARATYPE
, dorsal; J.
Argyrophorus rubrostriata
n. sp
.
, female,
PARATYPE
, ventral
.
FIG. 2.
Male genitalia (in lateral view, aedeagus extracted in lateral and ventral view). A.
Argyrophorus rubrostriata
n. sp
.
; B.
Argyrophorus idealis
n. sp.
FIG. 3.
Female genitalia (in lateral view). A.
Argyrophorus rubrostriata
n. sp
.
; B.
Argyrophorus idealis
n. sp
.
Diagnosis.
Most similar, in size, wing shape and dorsal colours to
A. lamna
, except for the reddish overcast of the FWV surface, and different configuration of the HWV black stripes, in the latter respects most similar to
Argyrophorus idealis
n. sp
.
Description.
MALE
(
Figs. 1G, H
): Head: eyes chocolate brown, naked; palpi twice the length of head, dorsally black, laterally light grey, covered with grey and black hair; antennae to half costa, entirely covered with scales, dorsally brown and steely grey, ventrally snow white, club darker, spoon like, composed of 9–10 segments. Thorax: dorsally black, covered with dense, chestnut hair, ventrally blackish grey; legs grey brown. Abdomen: dorsally and laterally chestnut, ventrally light grey. Wings: FW length
18–22 mm
; apex blunt, outer margin straight or slightly concave; HW oval with a smooth outer margin; fringes brown, longer on the HW. FWD: Shiny silver, except for a narrow, brown marginal line turning wider towards apex, and two minute subapical dark brown dots. HWD: Dark brown, glossy, heavily hairy in basal half, in most (fresh) specimens 5 red intravenal stripes in submarginal area. FWV: brownish red except for medium brown marginal area and golden yellow costa; a series of four black submarginal oval spots, with>shaped distal and basal golden yellow patches; a narrow, blackish brown marginal line. HWV: ground colour medium brown; a series of zigzagging black lines extending from costa to anal margin, postbasal, postmedian and submarginal; a series of elongated submarginal dots, each in every cell bordered basally and distally with yellow; a thin, black marginal line parallel to outer margin; all the veins marked with light grey.
FIG. 4.
Adults in the field and biotopes. A.
A. idealis
n. sp.
, female in resting posture; B.
A. idealis
n. sp.
, female egg laying behaviour; C.
A. idealis
n. sp.
, lateral basking on the ground; D.
A. idealis
n. sp.
, male feeding on
Paranephelius
sp. (
Asteraceae
); E.
A. idealis
n. sp.
, biotope,
type
locality; F.
A. idealis
n. sp.
, biotope,
type
locality; G.
A. rubrostriata
n. sp.
, female in resting posture; H.
A. rubrostriata
n. sp.
, biotope,
type
locality (photos A, B, H. T. Pyrcz; photos C, D, E, F, G. P. Boyer).
MALE GENITALIA (
Fig. 2A
): Tegumen dorsal surface humped; uncus stout, one and third the length of tegumen, with a sharp tip curved downwards; gnathos slender, half the length of uncus; pedunculus prominent four-fifths the length of gnathos; vinculum slightly arched, same length as from tegumen anterior edge; saccus rather short, same length as pedunculus; valvae elongate, two times the length of tegumen dorsum, same width throughout, with a slightly irregular costa, a prominent basal cavity, and a blunt tip; aedeagus the length of tegumen+uncus, tubular, slender, anterior entrance half the length of entire aedeagus, no apparent serration.
FEMALE (
Figs.
1I
, J
): Sexual dimorphism slight (FW length:
20–22 mm
), females are generally paler and lighter colour on both the dorsal and ventral surface.
FEMALE GENITALIA (
Fig. 3A
): Papillae anales flattened in lateral view, extremely pilose, apophyse posterior prominent, wide and terminated in a blunt tip, approximately the length of papillae width; lamellae postvaginalis forming a wide hoop, partly enclosed from above by two wide flaps; ductus bursae wide and short, weakly sclerotized gradually opening into bursa with ductus seminalis emerging from basal part of ductus bursae; corpus bursae oval with two prominent signa approximately two-thirds the length of bursae.
Etymology.
This species epithet is a composite of latin“rubrus”—red, and “striata”—striped, and is an allusion to the reddish stripes on the HWD.
Bionomics.
Argyrophorus rubrostriata
occurs in well-preserved puna covered with abundant grasses, mostly
Stipa
(4H). It flies over sunny, relatively dry slopes and does not penetrate into shadowy gullies and humid valleys, similarly to
A. idealis
and contrary to
A. angusta
. Adults are active during the hottest and sunniest parts of late morning, after 1
PM
their activity nearly ceases. It is a very common species in the right
type
of habitat, and several dozens can be observed within minutes. It was found at
3800–4200 m
.