The Elachista dispunctella (Duponchel) complex (Lepidoptera, Elachistidae) revisited, with exceptional level of synonymy
Author
Kaila, Lauri
text
Zootaxa
2015
2015-06-30
3980
3
301
358
journal article
10.11646/zootaxa.3980.3.1
87a07c27-c5f7-490d-9a25-5305095d22de
1175-5326
254013
674D11E9-904C-46E7-A689-013A0B708F3B
Elachista triseriatella
Stainton, 1854
Figs. 48–50
,
114–116
,
140
Elachista triseriatella
Stainton, 1854: 261
.
Elachista contisella
Chrétien, 1922: 121
.
Syn. nov.
Elachista gregori
Traugott-Olsen, 1988: 297
.
Syn. nov.
Elachista lerauti
Traugott-Olsen, 1992: 252
.
Syn. nov.
Material studied.
Type
material.
Holotype
♂
of
E. gregori
:
labelled: Holotype [rounded with red margin]; Genital praeparat nr. B.
24.11.86
sex: ♂ E. Traugott-Olsen;
Hainburger Berge
,
Austria
inter.
26.5.1962
W. Glaser
.
Elachista gregorella
[sic] n. sp. det.
E. Traugott-Olsen
; gen. prep. B.
24.11.86
. E. Traugott-Olsen, Holotype, Coll. Glaser. LNK. (
SMNK
).
Other material.
Denmark
:
Kergårda, Pl7, W.J. 16.
VI.
1
♂ P. Falck leg.,
DNA
sample 22227 (Coll. P. Falck);
HO, WJ
6.VI.1992
1 ♂
1♀ P. Falck leg., L. Kaila prep. 3465, 5774,
DNA
samples 21437, 21438 Lepid. Phyl. (Coll. Kaitila).
Great Britain
: Devon, Petit Tor Point, Torquay, SX927663 VC3, 3.
VII.1987,
1
♂, J. Tabell prep. 4697, R. J. Heckford leg. (Coll. Tabell).
Latvia
: Tal., Slitere, Vaide,
21.6.2000
,
1 ♂
, N. Savenkov leg., J. Tabell prep. 4755 (Coll. Tabell).
Slovakia
:
1 km
N. Muráň, 12.
VI.1987,
1
♂, B.. Bengtsson leg., Bengtsson prep. 2699 (Coll. Bengtsson);
Slov. kras-Zádiel, 27.
V.2001,
1
♂, Z. Tokár leg., L. Kaila prep. 5440,
DNA
sample 21349 (Coll. Tokár);
8, Hliník. 2.H.46,
1
♂, J. Patocka leg., L. Kaila prep. 3067 (
ZMUC
).
Spain
:
Granada
, Sierra Nevada, 1.5 km S Puerto de la Ragua,
2000 m
, 7.
VI.2010,
1
♂, 1 ♀, J. Tabell leg. & Coll.,
DNA
sample 16252 Lepid. Phyl.; 8.
VI.2010,
14
♂, 4 ♀, (two pairs in copula), J. Tabell prep. 4639, 4685, L. Kaila 5743, 5744,
DNA
samples 16250–1 (Coll. Tabell,
MZH
);
Granada
, Sierra Nevada,
2900 m
,
20 km
SE
Granada
, 12.
VII.2010,
1
♂, T. Nupponen leg., L. Kaila prep. 5705,
DNA
sample 15483 (Coll. Nupponen).
FIGURES 112–113.
Male genitalia of
Elachista berndtiella
Traugott-Olsen.
112. Holotype. 113.
E. casascoensis
Traugott- Olsen, holotype.
Diagnosis.
E. triseriatella
is a small species, usually with pale grey (sometimes white) forewing ground colour. The male genitalia are characteristized by the narrow uncus lobes, and the distinctly sclerotized, parallelsided and rather long digitate process. The female genitalia have a characteristic signum, consisting of two longitudinal, dentate rows. In the charactrization of
E. triseriatella
,
Traugott-Olsen (1988)
depicts the signum of
E. gregori
as such, but that of
E. triseriatella
as a single dentate sclerotization. This seems to be a misinterpretation, as
Bland (1996)
illustrates the signum of a British
E. triseriatella
as consisting of two rows.
E. triseriatella
has a characteristic sclerotization laterad of ostium bursae.
E. oukaimedenensis
has also such a sclerotization, but it is much broader than in
E. triseriatella
.
Biology.
In
Britain
,
E.
triseriatella inhabits open grasslands, both coastal and inland (
Heckford 2010
). In
Denmark
it has been found in coastal sand dunes (P. Falck and
O
. Karsholt, personal communication). The larva may be a leaf-miner within the leaves of
Festuca ovina
L. (for a review, see
Heckford 2010
).
Distribution.
Austria
,
Denmark
,
France
,
Germany
(
Biesenbaum 1995
),
Great Britain
,
Latvia
,
Slovakia
,
Spain
.
Remarks.
The
holotype
of
E. triseriatella
is depicted by
Traugott-Olsen (1988)
, that of
E. contisella
by
Parenti (1972)
, and that of
E. lerauti
by
Traugott-Olsen (1992)
. Theses
types
, as well as the
holotype
of
E. gregori
, are identical to
E. triseriatella
and here considered conspecific. The artificial distinction of the
E. dispunctella
and
E. triseriatella
groups by
Traugott-Olsen (1988
,
1992
) is flagshipped by this species, which appears to occur under two names in both publications. The record from
Germany
(as
E. gregori
in
Biesenbaum 1995
) has not been checked, but is reliable on the basis of illustration of the genitalia of a
German
specimen (
Biesenbaum 1995
).
E. triseriatella
is referred to as OTU
5 in
Mutanen
et al
. (2015)
.