New species and new combinations in Afrotropical Eucosmocydia Diakonoff, 1988 (Lepidoptera: Tortricidae: Olethreutinae)
Author
Brown, John W.
Department of Entomology, National Museum of Natural History Washington, DC 20013 - 7012, USA
Author
Razowski, Józef
Polish Academy of Sciences, Institute of Systematic Zoology Sławkowska 17, Krakow, Poland
Author
Aarvik, Leif
Natural History Museum, University of Oslo P. O. Box 1172, Blindern, NO- 0318 Oslo, Norway
Author
Timm, Alicia E.
Department of Agricultural Biology, Colorado State University Fort Collins, CO 80521 - 1177, USA
Author
Copeland, Robert S.
International Centre of Insect Physiology and Ecology P. O. Box 30772, Nairobi, Kenya
text
Insecta Mundi
2022
2022-04-29
2022
927
1
27
journal article
266155
10.5281/zenodo.6533434
0f129a32-9d98-4cbf-81fa-981c04fe43d5
1942-1354
6533434
AE18CA26-20E8-48D3-ABD0-22A0D9891065
Eucosmocydia mixographa
(
Meyrick, 1939
)
Fig. 5
,
38
Laspeyresia mixographa
Meyrick 1939: 51
.
[Grapholitini unplaced]
mixographa
:
Brown 2005: 366
.
Eucosmocydia mixographa
:
Razowski et al. 2010: 29
, fig. 47, 114.
Diagnosis.
This species has a slightly more two-toned forewing than most species in the genus, with a densely checkered orange basal half and a darker distal half, with the halves conspicuously separated by a slightly arched, black median fascia extending from the costa to the hind margin. In facies,
E. mixographa
is most similar to
E. deinbolliana
, but in
E. mixographa
the basal half of the forewing is yellow-orange followed by blackish maculation, whereas in
E. deinbolliana
the basal half of the forewing is mostly brownish.
Redescription.
Male
. Not examined.
Female
.
Head
. Vertex and frons pale yellow-orange; labial palpus pale yellow-orange; antenna with narrow ring of pale-yellow scales on each flagellomere.
Thorax
. Nota covered with orange-tipped brown scales; tegula long, with flat orange-tipped brown scales. Forewing (
Fig. 5
) length
4.5–4.8 mm
(n = 2); forewing expanding terminad; distal half of costa bent; termen with shallow subapical notch, convex beneath notch; upperside ground color yellow-brown, tinged rust to middle; costal strigulae white, well developed beyond middle; speculum brown with orange marks, followed by whitish, convex line; basal area limited by concave brown line edged with white posteriorly; black-brown markings across wing followed by yellow-rust subtornal area; tornal area brown. Fringe brownish gray with some orange adjacent to speculum, darker brown towards tornus. Hindwing dark brown, fringe grey-brown.
Abdomen
. Genitalia (
Fig. 38
) with papillae anales slender, slightly expanded posteriorly; apophyses as described for genus; sterigma mostly membranous, with a pair of somewhat faint, weakly scobinate, oblong patches in post-ostial area, anterior margin of sterigma narrow crescent-shaped; ductus bursae long, slender; corpus bursae ovoid with a pair of thorn-shaped signa.
DNA barcode.
There are two identical sequences of this species (BIN:
AAU2217
) in BOLD, both from
Nigeria
. In the ML tree (
Fig. 1
),
E
.
mixographa
is sister to
E. pappeana
.
Types.
Lectotype
♀
,
Eala
,
Democratic Republic of the Congo
,
Mar 1936
,
Ghesquière
; genital prep. 98060
L. Aarvik
(
RMCA
)
.
Paralectotype
: Same data as
holotype
(
1♂
) (BMNH).
Additional specimens examined:
Nigeria
:
Oyo State
, Ibadan, International Institute of Tropical Agriculture,
7.5008°N
,
3.9065°E
,
240 m
,
16 Jun 2006
(
1♀
),
30 Jun 2006
(
1♀
), G. M. Miller & T. M. Kuklenski, USNM slide 143,434 (USNM).
Distribution and biology.
This species is known from
the Democratic Republic of the Congo
and
Nigeria
.
Ghesquière (1940)
reported “Caterpillars in immature pods of
Piptadenia africana
[H. f. (
Fabaceae
)] and fruits of
Mallotus oppositifolius
[Muell.-Arg. (
Euphorbiaceae
)] together with
Carposina impavida
” (
Carposinidae
). These observations suggest that
E. mixographa
may be a generalist scavenger in dead or decaying fruit tissues, and not a specialist, as its congeners appear to be.
Remarks.
This species was described from
two specimens
, both from
the Democratic Republic of the Congo
. The
lectotype
was selected by Aarvik in 1998 but was not published until 2010 when
Razowski et al. (2010)
provisionally assigned the species to
Eucosmocydia
based on similarities of the genitalia with other African species of that genus. The genitalia of the
two females
from
Nigeria
appear to closely match those of the
lectotype
, even though the forewing pattern of those
two specimens
differs slightly from that of the
lectotype
.