A revision of the Elachista dispilella complex (Lepidoptera: Gelechioidea: Elachistidae)
Author
Kaila, Lauri
Author
Baran, Tomasz
Author
Mutanen, Marko
text
Zootaxa
2015
3963
4
517
560
journal article
10.11646/zootaxa.3963.4.3
2c5cce7e-581b-40a2-b0d2-03c058c2c4cd
1175-5326
253431
752E44D7-8171-4DF0-9128-D0E20D1F26CE
Elachista vartianae
Parenti, 1981
Figs. 30–31
,
83
,
96
Elachista vartianae
Parenti, 1981
: 84
Material studied.
Type
material.
Paratype
slide U. Parenti 974, Mus. Vind. 11057 (
NHMW
) [the whole
type
series is from
Syria
:
25 km
W. Damaskos].
Other material:
Lebanon
:
3319’33’’N 3547’24’’E Koura,
308 m
, NW Beshmezzine, olive orchard, 25.
VIII.2010,
1
♂, J. Kullberg leg., L. Kaila prep.5343,
DNA
sample 21305 Lepid. Phyl. (
MZH
).
Morocco
:
3324’54’’N, 504’42’’W, Middle Atlas,
1,900 m
a.s.l., Ifrane Prov., Michilinen resort, volcanoe crater & mixed forest, 7.–9.
V.2010,
2
♂, 3 ♀, J. Kullberg & Z. Kolev leg., L. Kaila prep. 5275, 5300,
DNA
samples 16818, 21306 Lepid. Phyl.; 3327’20’’N, 52’18’’W, Meknès-Tafilalet, Ifrane,
1920 m
,
9.V.2011
,
51 ♂
, 5 ♀, J. Kullberg leg. (
MZH
).
Diagnosis.
Elachista vartianae
is a large species in the
E. dispilella
complex. Its forewings are relatively narrow and unicolorous chalky white. The hindwings are pale grey, with characteristic ochreous fringe. The hindwing fringe colour distinguishes
E. vartianae
from the otherwise externally similar
E. laterotis
; but it is also similar to the sympatric
E. catalana
Parenti
and
E. vulcana
Kaila
(cf.
Kaila 2011b
). The male genitalia are similar to those of
E. bazaensis
, but its digitate processes are longer than the juxta lobes, shorter than juxta lobes in
E. bazaensis
. The female genitalia are diagnostic—there is no distinct junction between the corpus bursae and the ductus bursae. The ductus bursae is also longer in
E. vartianae
than
E. bazaensis
.
Molecular characterization.
The three specimens of
E. vartianae
analyzed showed a maximum variability of 0.46 %. Average distance between the specimens was 0.31 %. The genetically closest species was
E. ripai
with 6.39 % minimum distance to
E. vartianae
.
Redescription.
Wingspan
10–13 mm
. Labial palpus white, length 1.2 times diameter of head. Head, neck tuft, thorax, scape and pedicel of antenna white; flagellum grey. Legs grey, hindleg outwardly pale ocherous grey. Forewing chalky white with concolorous fringe. Hindwing almost white or pale grey, translucent; fringe ochreous. Underside of forewing dark grey, fringe white; underside of hindwing dark grey along anterior half, pale grey along posterior half; fringe ochreous grey.
Male genitalia. Uncus lobes broad, 1.5 times as long as wide at their widest point, sickle-shaped, mesial margin convex, apex pointed, lateral margin concave. Spinose knob of gnathos oval-shaped. Valva nearly 1.5 times as long as tegumen + uncus, 4.5 times as broad as long, parallel-sided; cucullus elongate. Digitate process tongue-shaped, 0.25 times as long as valva, medially and distally with stout setae. Juxta lobes devoid of setae, mesial and distal margin rounded without distinct limit. Phallus 0.75 times as long as valva, bent, basally broad, gradually tapered toward pointed and reinforced apex; basal opening posteriorly oriented, caecum absent; one small cornutus with oval and plate-shaped part and apically directed small spine.
Female genitalia. Apophyses posteriores slender, straight, twice as long as papillae anales. Apophyses anteriores about 2/3 the length of apophyses posteriores. Ostium bursae invaginated in sternum 8, narrow; colliculum as wide as ostium bursae, with elongate lateral sclerotzations; distance between ostium bursae and inception point of ductus seminalis 2/3 times as long as apophyses anteriores; ductus bursae + colliculum about 4 times as long as apophyses posteriores, tubular, membranous, anterior half granulose, incepted in corpus bursae without distinct border; corpus bursae fairly small, oval-shaped, with small internal granules in median area; signum dentate, boomerang-shaped.
Biology.
Immature stages are unknown. Adults are attracted to artificial light.
Distribution.
Lebanon
,
Morocco
,
Syria
.