Review of the Cyana rejecta (Walker, 1854) species-group, with descriptions of three new species from mainland Africa and a new subspecies from Madagascar (Lepidoptera, Erebidae, Arctiinae, Lithosiini)
Author
Volynkin, Anton V.
The African Natural History Research Trust (ANHRT), Street Court Leominster-Kingsland, HR 6 9 QA, United Kingdom & Altai State University, Lenina Avenue, 61, RF- 656049, Barnaul, Russia. & monstruncusarctia @ gmail. com; https: // orcid. org / 0000 - 0001 - 9447 - 4925
Author
László, Gyula M.
The African Natural History Research Trust (ANHRT), Street Court Leominster-Kingsland, HR 6 9 QA, United Kingdom & gyulalaszlo @ anhrt. org. uk; https: // orcid. org / 0000 - 0001 - 9862 - 8290
text
Zootaxa
2020
2020-12-03
4890
3
330
346
journal article
9390
10.11646/zootaxa.4890.3.2
b0c87592-1fbb-49d4-9db0-df99055671af
1175-5326
4306199
36AB3035-FF11-4789-ABA6-327597463253
Cyana
(
Cornutivulpecula
)
cornutissima
sp. n.
(
Figs 21–26
,
36–38
,
43
)
Type material.
Holotype
(
Figs 21
,
36
): male, “
Zambia
,
1452m
,
Lungu Forest Reserve
,
20 km
N of Mbala
, North-ern
Province
,
08°42’27’’S
31°16’34’’E
,
6–9.
V
.2019
,
MV
Light Trap
,
Deroziér
,
V
.,
László, G.
,
Miles
,
W. Leg.
,
ANHRT
:2019.12” / “ANHRTUK 00105887”, gen. slide
No.
: AV5786 (
ANHRT
)
.
FIGURES 30–32.
Cyana yao
sp. n.
: male genitalia. Depositories of specimens: 30 in ANHRT; 31 and 32 in NHMUK (©).
FIGURES 33–35.
Cyana occidentalis
sp. n.
: male genitalia. Depositories of specimens: 33 and 35 in ANHRT; 34 in NHMUK (©).
Paratypes
(
13 males
and
26 females
in total).
ZAMBIA
:
2 females
, with the same data as the holotype, unique numbers: ANHRTUK 00105885, 00136597, gen. slide
No.
: AV6001
;
1 female
, same data,
but collected by actinic light trap
, unique number: ANHRTUK 00105885, gen. slide
No.
: AV5787
;
1 male
,
1437m
,
Kapishya Hot Springs
,
Shiwa
N’gandu
Estate
,
S11°10’13’’ E31°36’00’’
, I–III.2016, M.
T
.
Harvey
coll., leg.
Smith
,
R
. &
Takano
, H.,
ANHRT
:2017.29, unique number: ANHRTUK 00008294, gen. slide No.: AV5002;
1 female
, same lo-cality and collectors,
I.2015
, unique number: ANHRTUK 00003634, gen. slide No.: AV5114;
1 female
, same locality,
16–17.
V
.2019,
LepiLED Light Trap
,
Deroziér
,
V
.,
László
, G.,
Miles, W.
leg.,
ANHRT
:2019.12, unique number: ANHRTUK 00105884, gen. slide No.: AV5788;
1 male
,
1460m
,
Mutinondo Wilderness Area
,
Northern Province
,
12°27’06’’S
31°17’30’’E
,
17–20.
V
.2019,
MV
Light Trap
,
Deroziér
,
V
.,
Imakando, M.
,
László
, G.,
Miles, W.
leg.,
ANHRT
:2019.12, unique number: ANHRTUK 00101032, gen. slide No.: AV5728;
1 female
,
1684m
,
Danger Hill
,
30 km
North of Mpika
,
Muchinga Province
,
11°37’28’’S
31°33’56’’E
,
27–30.IV.2019
,
MV
Light Trap
,
Deroziér
,
V
.,
László
, G.,
Miles, W.
leg.,
ANHRT
:2019.12, unique number: ANHRTUK 00083484, gen. slide No.: AV5730;
1 male
,
1 female
,
1566m
,
Senka Hill
,
Mukulizi Forest Reserve
,
Muchinga Province
,
09°05’43’’S
32°05’06’’E
,
1– 6.
V
.2019,
LepiLED Light Trap
,
Deroziér
,
V
.,
László
, G.,
Miles, W.
leg.,
ANHRT
:2019.12, unique numbers: ANHRTUK 00083653, 00083652, gen. slide Nos.: AV5820 (male), AV5999 (female);
1 female
, same data but collected by
MV
Light Trap
, unique number: ANHRTUK 00082412 (
ANHRT
)
.
KENYA
:
1 male
,
Nairobi
,
6,000 feet
,
Kyambu, IX
.[19]46,
H.L. Andrewes
, unique number:
NHMUK 10918070
,
gen. slide
No.
:
NHMUK010315732
(prepared by
Volynkin
)
;
2 females
,
Nairobi
,
6,000 feet
,
H.L. Andrewes
,
Kyamla, IX
.16
;
1 male
,
2 females
,
Nairobi
,
June 1919
,
Dr van Someren
/
Rothschild Bequest B.M.
1939-1, unique number:
NHMUK 10918141
(female)
,
gen. slide
No.
:
NHMUK010315781
(female) (prepared by
Volynkin
)
;
1 female
, same locality and collector,
Apr.–June 1919
;
1 male
,
1 female
,
Eldoma Ravine
, 4.XII.[18]96,
Dr. Ansorge
, unique number:
NHMUK 10918071
(male)
,
gen. slide
No.
:
NHMUK010315733
(male) (prepared by
Volynkin
)
;
1 female
, same locality,
10.IX.1912
, H.
R
.
Gallatly
;
1 female
, same locality and collector,
9.IX.1912
;
1 male
,
Brit. E. Africa
:
Lumbwa
,
25.VIII.1922
,
G.W. Jeffery
, B.M. 1922-377, unique number:
NHMUK 10918072
,
gen. slide
No.
:
NHMUK010315734
(prepared by
Volynkin
)
;
1 female
, same locality and collector,
4.
VI
.1923, B.M. 1923-403;
1 female
,
Suna, S
.
Karirondo
,
Jan. 1932
(
W. Feather
)
;
1 female
,
B. E. Africa
,
Njoro, A.J
.
Cholmley
, 1906-265 (
NHMUK
)
;
UGANDA
:
1 male
, 67. 26,
Western
Uganda
,
Nr. Congo
border,
March
&
April 1926
,
Mrs. E. Barns
/
Joicey Bequest
,
Brit. Mus.
1934-120, unique number:
NHMUK 10918073
,
gen. slide
No.
:
NHMUK010315735
(prepared by
Volynkin
)
;
1 female
,
Mile
478 on
Uganda Rly, B. E
.
Africa
,
19.XI.1900
,
C.S. Betton
, 1901-136
;
1 female
, SE
Ruwenzori
,
3500 ft.
,
19.
V
.1906, 1906-153 /
Coll.
by.
Hon. G. Legge
& A.F.
R
.
Wollaston
(
NHMUK
)
;
TANZANIA
:
1 male
,
Tanganyika
sept.,
Mt. Meru
,
Momella
,
1600–1800m
, 11–20..
I.1964
, leg.
W. Forster
, gen. slide
No.
:
ZSM
Arct.
2019-944 (prepared by
Volynkin
) (
ZSM
)
;
1 female
,
Mamba
,
Kilimanjaro
,
March
to
Oct.
[18]97 /
Rothschild Bequest B.M.
1939-1, unique number:
NHMUK 10918118
,
gen. slide
No.
:
NHMUK010315759
(prepared by
Volynkin
) (
NHMUK
)
;
ZIMBABWE
:
1 female
,
1900m
,
Manicaland Province
,
Vukutu
,
18°21’52’’S
,
32°36’29’’E
,
25–26.IV.2011
,
R
.
Yakovlev
leg.,
Ex Coll.
R
.
Yakovlev
,
ANHRT
:
2018.32, unique number: ANHRTUK 00143200, gen. slide
No.
: AV5998 (
ANHRT
)
;
MALAWI
:
1 male
,
Nyasaland
, valley of
S Rukuru
R
.,
3,000 ft.
,
20.
VI
.1910, S.A.
Neave
, 1910-406, unique number:
NHMUK 10918120
,
gen. slide
No.
:
NHMUK010315762
(prepared by
Volynkin
)
;
1 female
,
Zomba
,
Nyasal’d
,
Jan.-Feb. 1924
,
H. Barlow
/
Rothschild Bequest B.M.
1939-1, unique number:
NHMUK 10918117
,
gen. slide
No.
:
NHMUK010315758
(prepared by
Volynkin
) (
NHMUK
)
;
MOZAMBIQUE
:
1 female
,
937m
,
Sofala Province
,
Gorongosa N.P.
,
Mt. Gorongosa
SE slope (
Riverine forest
/
Grassland
),
18°28’58.9’’S
,
34°02’40.6’’E
,
8–9.VIII.2018
,
Actinic Light Trap
,
László, G.
,
Miles, W.
,
Vetina, A.
leg.,
ANHRT
:
2018.30, unique number: ANHRTUK 00075673, gen. slide
No.
: AV6000 (
ANHRT
)
;
SOUTH AFRICA
:
3 males
,
1 female
,
1420m
,
Limpopo Province
,
50 km
North West
of
Mokopane
,
Waterberg Wilderness Reserve
,
24°12’26’’S
,
28°52’17’’E
,
8–9.IV.2011
,
R
.
Yakovlev
leg. /
Ex Coll.
R
.
Yakovlev
,
ANHRT
:
2018.32, unique numbers: ANHRTUK 00070180, 00070181, 00070182, 00070183, gen. slide
Nos.
: AV5256, AV5257 (males) and AV5258 (female) (
ANHRT
and
TMSA
)
.
Remark
. The male genitalia of the specimens from
Tanzania
and
Kenya
differ from those of the specimens from
South Africa
,
Malawi
,
Zambia
and western
Uganda
by the slightly narrower vesica with a distal diverticulum bearing a smaller number of cornuti. To clarify the taxonomic status of these populations, molecular studies would be required.
Diagnosis
. Forewing length is
12–16 mm
in males,
11.5–14 mm
in females. As the external appearance of
Cyana cornutissima
sp. n.
is nearly identical with that of the sympatric
C. yao
sp. n.
, the examination of the genitalia is required for reliable identification. The male genital capsule of the new species differs from those of the other taxa of the species-group by the longer and narrower uncus. The vesica of
C. cornutissima
sp. n.
differs clearly from those of the other species of the
C. rejecta
species-group by the considerably larger distal diverticulum bearing a markedly more extensive row of numerous long cornuti. The configuration of the diverticula of the vesica of
C. cornutissima
sp. n.
is most similar to that of
C. rejecta
, but in
C. cornutissima
sp. n.
the subbasal diverticulum is broader basally; the 1
st
medial diverticulum is larger, more elongate and more heavily scobinated; the 2
nd
medial diverticulum is smaller; the 3
rd
medial diverticulum is present (absent in
C. rejecta
), and the subdistal diverticulum is slightly smaller and more weakly scobinated compared to those characters of
C. rejecta
. The female genitalia of
C. cornutissima
sp. n.
are easily distinguishable from those of its congeners by their conspicuously long ductus bursae (the longest in the species-group) with a weakly sclerotized lateral pocket anteriorly and heavily sclerotized longitudinal wrinkles deeply protruding to the basal part of the appendix bursae, the presence of a small, button-like signum bursae (as in
C. occidentalis
sp. n.
), and the large, sack-like, heavily sclerotized appendix bursae, which is smooth distally and anteriorly (which is short, conical and weakly sclerotized in
C. rejecta
and
C. yao
sp. n.
; whereas in
C. occidentalis
sp. n.
the appendix bursae is globular and wrinkled all over its surface).
FIGURES 36–38.
Cyana cornutissima
sp. n.
: male genitalia. Depositories of specimens: 36 and 37 in ANHRT; 38 in NHMUK (©).
FIGURES 39–43.
Cyana
spp.: female genitalia. Depositories of specimens: 39–41 in NHMUK (©); 42 and 43 in ANHRT.
Distribution
. Northern part of
South Africa
,
Mozambique
,
Malawi
,
Zimbabwe
,
Zambia
,
Uganda
,
Tanzania
and
Kenya
.
Etymology
. In Latin, the suffix ‘-issimus’ expresses the superlative. The specific epithet refers to the conspicuously long and dense cornuti of the distal diverticulum of the vesica, the longest and most numerous among the species of the
C. rejecta
species-group.