Revision of New World Cosmorrhyncha Meyrick, 1913 (Lepidoptera: Tortricidae: Olethreutinae), with descriptions of five new species
Author
Brown, John W.
Author
Razowski, Józef
Author
Timm, Alicia E.
text
Insecta Mundi
2020
2020-02-28
753
1
21
journal article
10.5281/zenodo.3702985
f3540a81-fcbe-4ed4-84cf-7947a37b4a0d
1942-1354
3702985
90309AB5-BEC9-4B9C-93CF-F7F7714D345D
Cosmorrhyncha macrospina
Brown and Razowski
,
new species
Fig. 10, 11
,
18
,
24
Diagnosis.
Although superficially similar to
C. albistrigulana
and
C. osana
, the costal strigulae in
C. macrospina
are much less conspicuous (
Fig. 10, 11
).
Cosmorrhyncha macrospina
is most easily distinguished from those two species by several features of the male genitalia: the absence of the pair of stout spines in the subbasal portion of the costa; and the presence of an elongate, curved spine from the basal margin of the cucullus. Its female genitalia are similar to those of
C. ocelliferana
, but those of
C. macrospina
are distinguished by the broader plate-shaped lateral parts of the sterigma and the single, longer blade of the signum.
Description.
Head
. Vertex pale brown; frons lighter, with some orange; labial palpus pale brown with narrow, longitudinal metallic-blue strip dorsally and slightly subdorsally along outer margin, bordered on each side by a linear area of orange scales; third segment black; pedicel of antenna with subcircular area of dark-brown scales.
Thorax
. Nota pale brown dorsally, with scales cream-tipped; forewing (
Fig. 10, 11
) length 5.5–6.0 mm (
n =
4); forewing ground color cream with distinct brownish-grey admixture and somewhat darker, dense striations and dots; costal strigulae weak, more or less concolorous with ground color, divisions rust in distal 0.33 of costa followed by four black stripes; a series of minute refractive dots along termen; black spot at distal end of discal cell with refractive scales in center. Fringe cream brown, rust orange in costal third. Hindwing pale brownish. Fringe cream.
Abdomen
. Male genitalia (
Fig. 18
) with uncus stout, rounded-bifurcate apically, with cluster of long setae on each bifurcation; socii with fine setae, broadest at base, digitate in distal 0.6; valva broadest basally, evenly attenuate distally throughout cucullus to a somewhat pointed apex, costa with small triangular process subbasally (probably representing a slight distal displacement of subbasal process); large curved spine from the basal margin of the cucullus ~0.66 distance from costa to sacculus; a long slender setae at lower margin of cucullus; phallus short, broad, with slightly undulate dorsum bearing a few weak serrations in apical 0.25; vesica with a single small, socketed cornutus. Female genitalia (
Fig. 24
) with papillae anales unmodified, narrowed anteriorly; apophyses relatively short, slender; posterior edge of sterigma straight, lateral parts slightly concave, proximal part weakly convex; ostium bursae bordered postmedially by elongate rounded, posterior convexities; antrum short, spindle-shaped; ductus bursae narrow, about 6 times as long as wide, mostly membranous, slightly dilated ~0.6 distance from ostium to junction with corpus bursae, with junction with corpus bursae distinct; corpus bursae rounded, signum with single, long, median, spindle-shaped blade; posterior margin of sternum 7 deeply V-shaped, resulting in a pair of rounded sublateral lobes.
Types.
Holotype
,
♂
,
Brazil
,
Rondônia
,
Cacaulandia
,
140 m
,
Oct 1991
,
V
.
O. Becker
,
Col. Becker
80239;
USNM
slide 124,792 (
USNM
)
.
Paratypes
(
1♂
,
2♀
).
BRAZIL
:
Pará
:
Rio Trombetas
, “9–19” [
Sep 1919
], Parish,
USNM
slide 72338 (
USNM
).
Rondônia
:
Cacaulandia
,
140 m
,
Nov 1994
(
1♀
),
Becker No.
96273,
USNM
slide 126,236 (
USNM
).
62 km
S
Ariquemes Fazenda
,
Rancho Grande
,
165 m
,
10°32′S
,
62°48′W
,
29 Oct–10 Nov 1991
(
1♀
),
R. Leuschner
,
USNM
slide 126,289 (
USNM
).
Distribution and biology.
This species is recorded from the states of
Rondônia
and
Pará
in northern
Brazil
. Nothing is known of the life history.
Etymology.
The specific epithet refers to the long, curved spine at the inner base of the cucullus in the male genitalia.
Remarks.
The genitalia of the two females designated as
paratypes
above have a V-shaped posterior margin of sternum 7, and are associated with males of
C. macrospina
by sequence data. Two other females from the type locality of
C. macrospina
have genitalia with a U-shaped posterior margin, indistinguishable from that of
C. albistrigulana
, and their barcodes align them with the latter species.