A new genus and species of Spilomelinae (Lepidoptera, Pyralidae) from the Galapagos Islands, Ecuador
Author
Landry, Bernard
Author
Roque-Albelo, Lazaro
Author
Hayden, James
text
Revue suisse de Zoologie
2011
2011-12-31
118
4
639
649
journal article
10.5962/bhl.part.117819
0035-418X
5822886
E281F8FA-BD0E-439C-95DD-82599B8FFCDE
Cheverella galapagensis
Landry
,
sp. n.
Figs 1–8
MATERIAL EXAMINED:
Holotype
male: 1- ‘
ECUADOR
|
GALÁPAGOS
|
Santa Crúz
|
Los Gemelos
|
31.I.1989
, M[ercury]
V
[apour]L[ight] |
B. Landry’
[printed in black ink on white card stock, with ‘ECUADOR’ sideways on left]; 2- ‘
HOLOTYPE
|
Cheverella
| galapagensis |
B. Landry’
[hand-written in black ink on red card stock].
Deposited
in the
CNC
.
PARATYPES
: 26 Ƌ,
49 ♀
, 1 of unknown sex from the
Galapagos Islands
,
Ecuador
: –
Fernandina
: 1 Ƌ, SWside, craterrim, G[lobal]P[ositioning]S[system]:
1341 m
,
S 00° 21.910’
,
W 091° 34.034’
,
12.ii.2005
, u[ltra-]v[iolet]l[ight] (B. Landry, P. Schmitz). –
Isabela, Alcedo
:
1 ♀
,
LadoEste
, 700 melev[ation].,
6.iv.1999
, uvl-f[?].l[ight] (L. Roque); 1 Ƌ,
1 ♀
, NEslope, about
400 m
up (S)
Los Guayabillos
camp, GPS:
892 m
elev.,
S 00° 25.208’
,
W 91° 04.765’
,
1.iv.2004
, uvl (B. Landry, P. Schmitz); 1 Ƌ,
1 ♀
(DNAvoucher,
Lepidoptera, M. Nuss 2007
, no. 263), ladoNE,
400 m
[elev.], camppega-pega,
15.iv.2002
, uvl (B. Landry, L. Roque); 2 Ƌ,
1 ♀
, 570 melev.,
11.x.1998
,
uvl (
L. Roque
). –
Isabela
,
SierraNegra
: 3 Ƌ, 11 kmNP[uer]toVillamil,
13.iii.1989
,
M[ercury]
V
[apour]L[ight] (B.
Landry
);
1 ♀
, same locality, G[lobalP[ositioning]S[system]: S 00° 87.613’ [sic],
W 91° 0.903’
,
9.iv.2004
, uvl (P. Schmitz);
1 ♀
,
San
[to]
Tomas
, 1200 F[ee]t.
Alt
[itude].,
22.viii.1906
(
F. X. Williams
)
; 1 Ƌ,
1 ♀
,
Alemania
,
xi.1974
(
T
.J. de
Vries
)
;
2 ♀
,
Corazon Verde
, xi-xii.1974 (
T
.J. de
Vries
). –
Isabela
,
Volcan Darwin
: 1 Ƌ, 300 melev.,
15.v.1992
,
MVL (B.
Landry
); 1 Ƌ, 630 melev.,
16.v.1992
,
MVL (
B. Landry
); 1 Ƌ (dissected, slide
MHNG
ENTO 6070
), same data except
17.v.1992
; 2 Ƌ (one dissected, slide MH- NGENTO 3041), 300 melev.,
20.v.1992
, MVL (B. Landry). –
SanCristobal
:
1 ♀
(dissected, slide
CNC
PYR 366
), pampa zone,
18.ii.1989
, MVL (B. Landry);
1 ♀
,
La Toma
, ca.
5.6 km
East ElProgreso
, GPS: 299 melev.,
S 00° 55.356’
,
W 089° 31.089’
,
23.ii.2005
, uvl (B. Landry). –
SantaCruz
:
1 ♀
, C[harles]D[arwin]
R
[esearch]S[tation], aridzone,
19.i.1989
, MVL (B. Landry);
1 ♀
,
4 km
N
Puerto Ayora
,
20.i.1989
, MVL (B. Landry);
4 ♀
,
Media Luna
, pampa zone,
21.i.1989
, MVL (B. Landry); 2 Ƌ,
1 ♀
, samedataasholotype; 1 Ƌ, C[harles]
Darwin Res
[earch].
Sta
[tion]., alt. ±
5 m
,
2.ii.1970
,
atu.v. “blacklight” (
R
.
Silberglied
); 1 Ƌ,
Tortuga
Res
[erve]., WS[an]taRosa,
6.ii.1989
,
MVL (
B. Landry
); 1 ofsexunknown,
MediaLuna
, pampa zone,
8.ii.1989
, MVL (B. Landry);
1 ♀
,
HornemanFarm
,
220 m
,
16.ii.1964
(
D. Q. Cavagnaro
)
;
1 ♀
, same data except
25.iii.1964
;
1 ♀
, same data except
30.iii.1964
;
3 ♀
, same data except
5.iv.1964
;
2 ♀
, same data except
3.v.1964
;
1 ♀
, same data except
7.v.1964
;
1 ♀
,
2 km
W
Bella Vista
,
27.ii.1989
,
MVL (
B. Landry
); 1 Ƌ,
AcademyBay
, DarwinResearchSta[tion].,
27.ii.1964
(
D. Q. Cavagnaro
)
; 1 Ƌ,
3 ♀
, [nopreciselocality],
iii.1969
, B.M. 1970-172, Ref. No. L.80 (no collector);
1 ♀
, E[stacion]C[ientifica]C[harles]D[arwin].,
6.iii.1992
,
uvl (B.
Landry
); 1 Ƌ (dissected, slide
MHNG
ENTO 6069
), transition zone, recently cut road, GPS:
S 00° 42.528’
,
W 90° 18.849’
,
12.iii.2004
, uvl (B. Landry, P. Schmitz);
1 ♀
, lowagriculturezone, GPS:
S 00° 42.132’
,
W 90° 19.156’
,
13.iii.2004
, uvl (B. Landry, P. Schmitz);
1 ♀
, FincaS[teve].
Devine
,
17.iii.1989
,
MVL (B.
Landry
); 1 Ƌ, grassland,
750 m
,
6.iv.1964
(
D. Q. Cavagnaro
)
;
1 Ƌ, vic[inity]. “
Mirador
”,
W of Media Luna
, alt. ±
620 m
,
26.v.1970
(
Silberglied
)
;
4 ♀
(one dissected, slide MNHGENTO 6068),
LosGemelos
,
27.v.1992
, MVL (B. Landry);
2 ♀
,
StationDarwin
, lumière,
x.1964
(
J. & N. Leleup
)
;
2 ♀
,
HaciendaSchiess.
,
xi.1974
,
B.M. 1975-7,
Ref. No. L
(no collector); 1 Ƌ,
CDRS
,
Barranco
, barrenador de tallos [de]
Tournefortia
pubecens [sic], emergio
17.xi.1999
(
L. Roque
)
;
1 ♀
, 80 [referring to note in notebook of?
T
.
J. de Vries
, deposited at
CDRS
]. –
Santiago
:
1 ♀
,
Nside
, GPS: 527 melev.,
S 00° 13.690’
,
W 90° 44.135’
,
5.iii.2005
, uvl (P. Schmitz);
1 ♀
,
Aguacate
[camp], 520 melev.,
6.iv.1992
, MVL (B. Landry);
3 ♀
,
Central
[camp], 700 melev.,
9.iv.1992
, MVL (B. Landry); 1 Ƌ (wingsonslideMHNGENTO 3043),
1 ♀
,
Aguacate
, 520 melev.,
12.iv.1992
,
MVL (B.
Landry
). DepositedintheBMNH,
CAS
,
CDRS
,
CNC
,
MCZ
, and
MHNG
.
ETYMOLOGY: From the name of the archipelago where this species is presumably endemic.
DIAGNOSIS: Currently unique within the genus
Cheverella
, this species can be separated from presumably related taxa as mentioned in the generic diagnosis above. In the
Galapagos
, this species is unique by virtue of its whitish grey colour with deep dark brown markings on the forewing, head, and thorax. An undescribed species of endemic
Agathodes
Guenée (
Pyralidae
, Spilomelinae) has a similar colour and pattern, but its wings are narrower and longer, and its hindwing is completely suffused with brown, with a light purple shine.
DESCRIPTION: MALE (n=27) (Fig. 1). Head white with greyish brown as spot between antennae, and ventrally behind eyes. Antenna white, with brown on basal
FIGS 6-8
Cheverella galapagensis
Landry
,
sp. n.
Male genitalia of
paratype
(MHNG). (6) Genitalia without phallus. (7) Phallus. (8)
Cheverella galapagensis
Landry
,
sp. n.
Female genitalia of
paratype
(CNC).
flagellomeres. Haustellum and maxillary palpus white. Labial palpus mostly white, brown laterally on palpomeres II and III. Thorax white with brown spots as shown, deeper brown (almost black) at collar, greyish brown on metascutellum. Foreleg with greyish brown on dorsal side, white ventrally; midleg white with brown at tips of femur and tibia; hindleg entirely white. Forewing white with deep dark brown spots and lines as shown, sometimes (
1 specimen
) with more extensive dark brown suffusion, especially between subapical line and outer margin. Forewing length
6.4–9.6 mm
(
holotype
8.7 mm
). Hindwing white with more or less strongly marked subapical and apical lines, except in anal sector. Abdomen mostly white, with some greyish brown dorsally on all or most segments.
Male genitalia: See generic description.
FEMALE (n=49) (Figs 2, 3, 8). Forewing length
7.7–10.3 mm
. Female genitalia: See generic description.
REMARKS: As mentioned above, L. R.-A. reared the only known larva from the host plant
Tournefortia pubescens
Hook.
f.
(
Boraginaceae
). This taxon is endemic to the Galapagos and found on the islands of Fernandina, Floreana, Isabela, Pinzon,
San Cristobal
, Santa Cruz, Santiago, and Wolf (
McMullen, 1999
). Thus, the moth may also occur on the islands of Floreana, Pinzon, and Wolf, where adults have not yet been collected.
The latitude and longitude data of the specimen collected on Sierra Negra, Isabela,
11 km
north of Puerto Villamil, on
9 April 2004
by P. Schmitz were taken in decimal degrees shown above in degrees, minutes, and seconds. In degrees with decimal minutes these data correspond to
S 0° 52.568
,
W 91° 05.418
.