American Asteraceae-feeding Astrotischeria species with a highly modified, three-lobed valva in the male genitalia (Lepidoptera, Tischeriidae)
Author
Jonas R. Stonis
Author
Arūnas Diškus
Author
Fernando Carvalho Filho
Author
Owen T. Lewis
text
Zootaxa
2018
2018-09-03
4469
1
1
69
journal article
29181
10.11646/zootaxa.4469.1.1
9a69324f-0dfb-463a-a399-070b030037af
1175-5326
1454525
42680994-585D-4230-B574-8DB398341B23
Astrotischeria amazonica
Diškus & Stonis
,
sp. nov.
(
Figs. 4–6
,
70–82
,
233
,
241–244
)
Type
material.
Holotype
:
♂
,
ECUADOR
:
Napo Province
,
1 km
N Misahualli,
1°01'28"S
,
77°40'02"W
, elevation
440 m
,
07.ii.2007
, V. Sruoga, genitalia slide no. AD
929♂
(
ZMUC
).
Diagnosis.
The combination of a very wide uncus and two horn-like dorsal lobes of valva in the male genitalia distinguishes
A. amazonica
sp. nov.
from all other
Astrotischeria
, including other members of the
A. trilobata
group.
Male
(
Fig. 70
). Forewing length about 2.5 mm; wingspan about 5.4 mm. Head: face, palpi and frontal tuft glossy, pale ochre cream; pecten indistinct in the poorly preserved
holotype
(see Remarks); antenna with about 35–37 segments, longer than half the length of forewing; flagellum cream on upper side, dark grey on underside; sensillae long and fine, whitish cream. Thorax and tegula pale brownish grey. Forewing, except for a few large, irregular pale orange-ochre patches, densely speckled with brown-grey scales; some of these scales with ochre cream tips and little blue, green or purple iridescence; fringe black-grey, including the forewing apex; fringe-line indistinct; forewing underside dark greybrown, without spots or androconia. Hindwing brownish grey, without androconia; fringe grey-brown. Legs pale brownish grey, with rather strong golden gloss; foreleg and midleg densely speckled with grey-brown scales on upper side. Abdomen brownish grey, distally brownish cream on underside; anal tufts indistinct, grey; genital plates grey.
Female.
Unknown.
Male genitalia
(
Figs. 4–6
,
71–82
). Capsule about 465 µm long, 200–210 µm wide. Uncus consisting of two slender lateral lobes and two short but very wide median lobes (
Figs. 74
,
79
). Valva divided (
Figs. 4–6
); ventral lobe (
Fig. 75
) slender; dorsal lobes consisting of two large, horn-like processes (
Fig. 6
); transtilla absent. Anellus thickened laterally, with 3 setae (
Figs. 76
,
79
), membranous posteriorly. Phallus about 520 µm long, distally deeply bifurcated, without spines (
Figs. 71, 72, 78
).
Bionomics
. Adults fly in early February. Otherwise biology unknown.
Distribution
(
Fig. 233
). Known from a single locality in Ecuadorian Oriente, disturbed Amazonian rainforest habitat at the elevation of about
440 m
(
Figs. 241–244
).
Etymology.
The species name is derived from the Amazon Basin, a place name of South American region in reference to the occurrence in the Amazonian rainforest.
Remarks.
Head of the
holotype
is broken, placed in a plastic tube.