Notes on taxonomy and distribution of some Palaearctic Ancylosis Zeller, 1839 (Lepidoptera: Pyralidae: Phycitinae)
Author
Bidzilya, Oleksiy
0000-0001-9243-2481
Institute for Evolutionary Ecology of the National Academy of Sciences of Ukraine, 37 Academician Lebediev str., 03143, Kyiv, Ukraine.
Author
Budashkin, Yuriy
0000-0001-7824-8338
T. I. Vyazemsky Karadag Scientific Station-Nature Reserve-Branch of FIC " Institute of Biology of the South Seas " RAS, 298188, Kurortnoye, Pheodosia, Crimea Republic. budashkin @ ukr. net; https: // orcid. org / 0000 - 0001 - 7824 - 8338
budashkin@ukr.net
Author
Slamka, František
Racianska 61, SK- 83102 Bratislava, Slovakia. slamkaf @ nextra. sk; https: // orcid. org / 0000 - 0002 - 7848 - 3410
slamkaf@nextra.sk
Author
Tsvetkov, Eugene
0000-0003-0614-9810
Mechnikova, 3 - 1 - 30, 195271, St. Petersburg, Russia. tsvcountcal @ rambler. ru; https: // orcid. org / 0000 - 0003 - 0614 - 9810
tsvcountcal@rambler.ru
Author
Yepishin, Viktor
0000-0002-8751-2820
Institute for Evolutionary Ecology of the National Academy of Sciences of Ukraine, 37 Academician Lebediev str., 03143, Kyiv, Ukraine. & viktoryepishin @ gmail. com; https: // orcid. org / 0000 - 0002 - 8751 - 2820
viktoryepishin@gmail.com
text
Zootaxa
2020
2020-08-07
4822
4
451
481
journal article
8699
10.11646/zootaxa.4822.4.1
4aa2e26d-4581-4d6a-ac67-346c45369a48
1175-5326
4457997
4329F798-9591-4711-88E7-3B9EE1C8864D
Ancylosis ciliatella
(
Zeller, 1872
)
spec. rev., stat. nov.
Figs 78–81
,
93
,
100
Myel.
[
ois
]
ciliatella
Zeller, 1872
—
Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien
, 22: 557. TL:
Volgograd
[Sarepta],
Russia
.
Type material examined
.
Holotype
of
ciliatella
:
♂
“
ciliatella
Z., Sarepta Chr. 69” | “mihi ighnota”, Stdg. Lit.14/3 71” | “Zell. Coll., 1884”| “Type” (
NHM
).
Additional material examined.
2 ♂
,
1 ♀
,
Russia
:
Astrakhan
reg., W bank of
Lake Baskunchak
,
7.v.2018
;
2 ♂
,
3 ♀
,
Kazakhstan
:
1 ♂
,
Emba
,
Uralsk
| 954 |
Heterographis pectinatella
(gen. slide 284/19,
O. Bidzilya
) (
NHMW
);
Mangistau
reg.,
43 km
SE of Shetpe
, sands,
4.v.2019
;
2 ♂
,
2 ♀
,
Kazakhstan
:
Turkestan
reg.,
33 km
NE of vill. Sozak, sands,
25.vi.2019
(all
ET
).
Comparative material examined.
Ancylosis labeculella
:
1 ♂
,
1 ♀
,
Tunisia
,
Djedeida
,
30.v.1913
(gen. slide 280/
19♂
; 279/
19♀
,
O. Bidzilya
)
;
1 ♂
,
1 ♀
,
Maknassy
(
Tunisia
),
2.vi.1927
(
Dumont
)
;
1 ♂
,
1 ♀
, Hung. Zool. Miss.,
Tunisia
:
Sfax
,
Thyna
; sea coast:
Juncus
,
Salsola
,
Phragmites
ass.,
7.iv.1977
; lamp,
No.
85 (
Gozmány
&
Mahunka
) (all
NHMB
)
.
Ancylosis pectinatella
:
lectotype
♂
, “Alai, 85 Hbh.” | “953” | ”
Heterographis pectinatella
Rag
, type, orig., pl. XXVIII, fig. 16” | “
U. Roesler
,
♂
, GU: 5091” (
MfN
)
.
Ancylosis
pr.
pectinatella
1 ♂
,
1 ♀
, Hung. Zool. Miss.,
Tunisia
:
Tozeur
,
14.iv.1977
; lamp,
No.
109 (
Debreszy
et
Mahunka
) (gen. slide 347/
19♂
; 348/
19♀
,
O. Bidzilya
) (
NHMB
)
.
Diagnosis.
Ancylosis ciliatella
is a rather variable species (
Figs 78–81
). The forewing is varying from pale, light brown to reddish-brown and magenta, but white costal strip is usually distinct. This forewing pattern in combination with narrow elongated forewing with distinct apical and tornal angles and long cilia on the male antennae are most constant characters for separating of
A. ciliatella
from related species of
Ancylosis
.
Ancylosis ciliatella
seems most related to
Ancylosis pectinatella
(
Ragonot, 1887
)
,
A. yerburii
(
Butler, 1884
)
and
A. labeculella
(
Ragonot, 1887
)
both in the genitalia and externally sharing long cilia on the male antennae.
Ancylosis pectinatella
differs in a broader forewing with more rounded apical and tornal angles, pale and less contrasting ground colour and more diffuse white costal strip (
Figs 82–84
).
Ancylosis labeculella
is distinguished by the absence of white costal strip and presence of dark discal spot (
Figs 85, 86
).
Ancylosis yerburii
is usually darker, greyish-brown rather than light brown, sometimes with white suffusion on the forewing (
Figs 88–92
).
Long cilia on the male antennae (more than twice as long as the width of flagellum) is a reliable character for separating
A. ciliatella
from externally somewhat similar
A. larissae
,
A. delicatella
,
A. amseli
and
A. albicosta
. Two first differ additionally in the absence of short hump on white costal streak, the absence of white suffusion in basal 1/4–1/5 of dorsal margin and uniformly reddish-brown rather than white edged in
A. ciliatella
tegulae.
Ancylosis amseli
has no pink shade on the forewing, contrary to
A. ciliatella
. However, this character is rather variable and we cannot exclude the discovery of specimens mottled with pink among
A. amseli
. The specimens of
A. ciliatella
without pink scales on the forewing can be distinguished from
A. albicosta
by their uniformly light brown colouration, in
A. albicosta
the forewing pattern is usually more contrasting.
Male genitalia of
A. ciliatella
are recognized by medially broadened valva with distinct medial fold, broad sacculus, narrow, long apically connected trastilla lobes in combination with long (twice longer than broad) uncus and basally narrowed aedeagus (
Fig. 93
). We can hardly specify characters for reliable separating
A. ciliatella
from
A. pectinatella
,
A. yerburii
and
A. labeculella
in the genitalia alone, until this group remains unrevised. However, based on our study of available material, we consider that
A. ciliatella
can be separated from
A. yerburii
and
A. labeculella
(
Figs 96, 97
) by more convex ventral edge of valva, presence of paired ventral sclerites of juxta near base of aedeagus, and ductus ejaculatorius placed much closer to proximal end of the aedeagus in the male genitalia. Additionally, basal sclerite of sternum VIII in
A. ciliatella
is more prolonged that this of
A. labeculella
(
Figs 96, 97
) and
A. yerburii
(
Figs 98, 99
). In females of
A. yerburii
thorn-like signae are larger and less numerous (
Fig. 102
). In
A. labeculella
signae are grouped in one rather than in two clusters, and ductus bursae is broader with gradual transition to corpus bursae (
Figs 103, 104
).
Ancylosis pectinatella
is an insufficiently known species. The examined male
lectotype
from Alai differs from
A. ciliatella
in broader uniformly light brown forewing (
Fig. 82
). The male genitalia (
Figs 94, 95
) are very similar to
A. ciliatella
but ductus ejaculatorius is closer to base of aedegus.
Ancylosis albicosta
has somewhat similar valva (with well-defined broad sacculus), but it is of equal width without medial broadening and transtilla lobes are shorter.
Redescription
. Adult (
Figs 78–81
). Wingspan
19–21 mm
. Head smooth. Frons widely convex. Proboscis well developed. Labial palps nearly 1.3× diameter of eye, pointed up. First segment bended, second segment twice as long as the first and of the same width. Third segment very small, ovate, it is 1/5–1/6 of the second segment in length, and 1/3 of the latter in width. Maxillary palps extremely small with ovate segments. Antennae about 3/5 of the forewing in length, scape almost ovate with its wide part approximately 1.5× as long as wide. Flagellum without basal sinus. Cilia rather long in males (2–2.5× of flagellomere diameter) and shorter (1/2) in females. Frons white, vertex whitish-creamy or yellowish-creamy, labial palps white, often with creamy elongate area on the outer surface, maxillary palps in short white scales, antennae whitish, whitish-creamy or brown. Tegulae and patagia varying in colouration: light brown, creamy, yellowish-creamy or magenta. Abdominal terga yellowish-creamy or greyish, sterna whitish. Legs whitish, partly yellowish-brown. Forewing elongate triangular with slightly convex termen; costa almost straight, convex apically, as a rule. Ground colour of the forewing can be ash grey, brownish-grey, brownish-creamy, grey with pink tinge or magenta. Sometimes whitish suffusion expressed. White costal strip with straight edges, smooth and usually sharply pointed in apical 1/3, much varying in width. Costal strip fading in distal 1/
2 in
some cases. A small streak-like white marking present along the hind margin basally. Fringe grey, creamy or grey with pink tinge. Underside of the forewing brown with narrow white costal strip and whitish area along the hind margin, occupying 1/3–1/2 of the wing. Hindwing varying from light brown to whitish with darkened (light brown or yellowish-brown) marginal area. Fringe whitish or light brown, usually with darker brown basal 1/3. Underside of the hindwing light brown or whitish-brown.
FIGURES 78–92.
Ancylosis
spp., adults. 78–81.
A. ciliatella
. 78. HT, Russia, Sarepta, ♂. 79. Russia, Astrakhan reg., ♀. 80. S Kazakhstan, Turkestan reg., ♂. 81. W Kazakhstan, Emba, ♂ (gen. slide 284/19, O. Bidzilya). 82–84.
A. pectinatella
. 82. LT, Kyrgyzstan, Alai, ♂ (gen. slide GU 5091, U. Roesler). 83. Tunisia, Tozeur, ♂ (gen. slide 347/19, O. Bidzilya). 84. Tunisia, Tozeur, ♀ (gen. slide 348/19, O. Bidzilya). 85–87.
A. labeculella
. 85. Tunisia, Djedeida, ♂ (gen. slide 280/19, O. Bidzilya). 86. Tunisia, Djedeida, ♀ (gen. slide 279/19, O. Bidzilya). 87. Tunisia, Maknassy, ♂ (gen. slide 274/19, O. Bidzilya). 88–92.
A. yerburii
. 88. Russia, Astrakhan reg., ♂. 89. HT, Aden, ♂. 90. Spain, Alhama de Murcia, ♂ (gen. slide 267/19, O. Bidzilya). 91. Tunisia, ♀ (gen. slide 271/19, O. Bidzilya). 92. Tunisia, 21 km NW El Kef, ♂ (gen. slide 33/20, O. Bidzilya).
Female of
A. ciliatella
.
Females of
A. ciliatella
have no external differences from males except for much shorter cilia, which is nearly 1/3 of flagellomere. Like in males, ground colour of the forewing is ash grey with more or less extensive pink tinge.
Male genitalia
(
Fig. 93
). Uncus twice as long as borad, parallel-sided to 2/3, then narrowed towards rounded apex. Distal sclerite of gnathos short, triangular, pointed, extending to 1/5 length of uncus. Tuba analis subrectangular, with transverse folds before middle, extending to 3/4 length of uncus. Tegumen slightly longer than uncus, broadly constricted in distal portion. Vinculum band-shaped, saccus subrectangular, twice as long as broad, apex weakly emarginated in middle. Juxta long, subrectangular, lobes with distinctly pointed apex. Transtilla lobes long, narrow, curved inwards, connected medially. Valva broad, with rounded apex; dorsal margin straight with short medial hump; costa moderately broad, extending nearly to the top of valva; ventral margin distinctly bended in middle; sacculus weakly sclerotised, about 1/3 width of valva, extending to 1/2 length of valva; distinct narrow oblique medial fold from the base of costa to mid of dorsal margin. Aedeagus as long as costa of valva, basal 1/4–1/3 narrow, then broadened, distal half narrow, parallel-sided.
Tergum VIII rounded, stronger sclerotized in posterior portion, anterior margin with deep, narrow, triangular medial emargination; sternum VIII strongly sclerotized laterally, subtrapezoidal, anterior margin straight, posterior margin with medial triangular hump, lateral tufts of scales distinctly longer than the length of sternum VIII.
Female genitalia
(
Fig. 100
). Papillae anales elongate, slightly tapering to apex, densely covered with bristles. Posterior apophyses rather thin, about 3/2 of papillae anales and nearly equal to anterior apophyses.Anterior apophyses some more stout, angulate and broadened at the base. Posterior margin of tergum VIII with deep V-shaped membranous hollow, anterior margin convex. Antrum membranous conical with small curved sclerite located anteriorly. The sclerite varies in shape, it is more often petal like. Ductus bursae very thin and short. Ductus seminalis arises from nearly 1/2 of ductus bursae. Corpus bursae pear-shaped with elongate posterior part. Thorn like signae form two clusters of usually rounded shape on the surface of corpus bursae. Clusters are located laterally and connected with each other. A group of signae is present as a continuation of two clusters in posterior part of corpus bursae. Each signa is on a weakly sclerotized rounded base. Signae are variable in size, the smaller ones are located at the edges of the two clusters.
Remarks.
Myelois ciliatella
was described from a single male from Sarepta. We studied six males and six females from South of European
Russia
and
Kazakhstan
which match externally to the photograph of
holotype
in all details and, hence, are conspecific with latter. The study of the genitalia of these specimens justified
A. ciliatella
a separate species, which genitalia differ considerably from those of
A. rhodochrella
. We therefore reinstate
A. ciliatella
as valid species:
A. ciliatella
(
Zeller, 1872
)
spec. rev.
,
stat. nov.
Ancylosis pectinatella
was described from unspecified number of specimens from Margilan (
Uzbekistan
).
Roesler (1973: 419)
described in detail the specimen from MfN labelled “
Heterographis pectinatella
Rag
, type, orig., pl. XXVIII, fig. 16” collected in “Alai” (not in Margilan as it states in the original description) and indicated it as a “Type”. According to
ICZN (1999
: article 74.6) this specimen is considered as a
lectotype
. The male genitalia of
A. pectinatella
are extremely similar to those of
A. ciliatella
(see above for details). However, taking in account the external differences in wing pattern and in the shape of the forewing we suggest
A. pectinatella
as a separate species until additional material from type locality including females becomes available. We studied additional specimens from
Tunisia
identified as
A. pectinatella
. They differ externally from the
lectotype
by light grey mixed with dark brown forewing (
Figs 83, 84
). The male genitalia are nearly indistinguishable from those of
A. pectinatella
from Alai except for valva that is stronger narrowed apically in the latter (
Fig. 95
).
Ancylosis labeculella
was described from
Gabès
,
Tunisia
.
Roesler (1973)
considered
A. labeculella
as a synonym of
A. yerburii
.
Leraut (2014: 415)
re-instated
A. labeculella
as a separate species. The current status of
A. labeculella
remains uncertain as
type
specimens are unrevised. We examined two males and three females from
Tunisia
(
Figs 85, 86
) which match externally to specimens of
A. labeculella
figured by
Leraut (2014
: pl. 65, figs 8–10). These specimens are undoubtedly closely related in the genitalia to
A. yerburii
,
A. ciliatella
and
A
.
pectinatella
, though valva in
A. ciliatella
and
A. pectinatella
is broader in the middle and ventral sclerites near aedeagus are present. Additional differences in the shape of the aedeagus are discussed above. For the differences from
A. yerburii
see below under that species. Signae grouped in one rather than in two clusters (
Figs 103, 104
) seem the most constant character for separating female genitalia of
A. labeculella
from related species.
Distribution.
The species is known with certainty from
Russia
(
Volgograd
and
Astrakhan
regions) and
Kazakhstan
(Mangistau and Turkestan regions). Records from other regions (
Roesler 1973
(as
A. rhodochrella
)) need verification.