Argyrotaenia jamaicana
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Ordo: Lepidoptera
Familia: Tortricidae
Genus: Argyrotaenia
Name
Argyrotaenia jamaicana Razowski & Becker, 2000b – Wikispecies link – Pensoft Profile
- Argyrotaenia jamaicana Razowski & Becker, 2000b: 313
Diagnosis
Argyrotaenia jamaicana is strongly sexually dimorphic. Worn males could be confused with A. amatana because of their diminutive size, but the strongly concave costa at the distal third of the forewing of A. jamaicana (Fig. 5G) should easily separate them from males of A. amatana (Fig. 6E–H). Females are also similar to those of A. amatana, but also possess a strongly concave costa at the apical third of the forewing and have a less strongly contrasting forewing pattern (Fig. 5H) compared to females of A. amatana (Fig. 6A–D). Females could also be confused with females of A. felisana (Fig. 7E, F) from Hispaniola, another sexually dimorphic species, especially because some females of A. felisana also possess a strongly concave forewing costa (Fig. 7E). However, A. jamaicana females have a more orange overall hue in both the forewing and hindwing (Fig. 5H). Male genitalia of A. jamaicana (Fig. 15B) are likely to be confused with A. amatana, A. bisignata, and A. razowskiana. From A. amatana (Austin et al. 2019[1]: fig. 3a), A. jamaicana differs in having a narrower uncus and longer terminal plate of the gnathos. From A. bisignata (Fig. 15A) it differs in having a much longer, thinner terminal plate of the gnathos and more curved phallus. From A. razowskiana (Fig. 15C) it differs in having a broader neck of the uncus and a more curved phallus. The female genitalia of A. jamaicana (Fig. 17A) most closely resemble those of the same three species, but can be separated by having smaller, less elongate papillae anales and a more evenly rounded capitulum. Both A. jamaicana and A. amatana occur on Jamaica, but they appear to be allopatric, with A. jamaicana restricted to mid- and high elevations and A. amatana to the immediate coast (Fig. 23).
Type material
Holotype ♂: Jamaica: Greenhills, Hardwar Gap, 27 iii 1936, E. Paine [examined]. Razowski genitalia slide #12274 [examined] (CMNH).
Additional material examined
(17♂♂, 8♀♀). Jamaica: Portland: 2♂♂, 1♀, Green Hills, 11 iii [19]66, S.S. Duckworth, W.D. Duckworth (1♂ CUIC, remainder USNM). KAA diss. #0128(♀), (USNM). 3♂♂, Hardwar Gap, “Green Hills”, 16–17 vii 1963, Flint & Farr. One with JAP diss. #3182, USNMdiss. ##68325 [examined] (USNM). 1♂, 1♀, 1 mi N Hardwar Gap, 12–20 xi 1966, E.L. Todd (♂ CUIC, ♀ USNM). KAA diss. #0127(♀) (USNM). St. Andrew: 1♀, Newcastle, Rothschild Bequest, B.M. 1939-1 (BMNH). 1♂, Newcastle, str. at mile 16.5, 30 vii 1962, O. Farr, R. Flint (USNM). 2♂♂, same as previous, but 18 vii 1963 (CUIC, USNM). 1♂, Chestervale, Yallahs River, 24–25 vii 1962, O. Farr, R. Flint, KAA diss. #0131 (USNM). 1♂, same as previous, but 17 vii 1963 (USNM). 1♂, Hermitage Dam, 22–23 vii 1962, O. Farr, R. Flint (USNM). St. Ann: 1♂, Moneague, Parthenium hysterophorus ex. 23 ii 1905, Wlsm, 77032. Walsingham Collection, 1910–427. [Tortrix partheniana type ♂]. St. Catherine: 4♂♂, 4♀♀, Mt. Diablo, Hollymount, 2754 ft., 21–24 iv [19]73, Don Davis, Mignon Davis (2♀♀ CUIC; remainder USNM, including 1♂ USNMENT01480198 and 1♀ USNMENT01480208). KAA diss. #0129 (♀) (USNM). 1♀, Worthy Park, 2.2 mi N on Camperdown Road, R.E. Woodruff, 18–25 ii [19]70, malaise trap (USNM).
Redescription
Male (n = 17). Head. Typical of genus. Scales on vertex straw yellow intermixed with a few light red-orange scales. Frons with scaling red-orange. Labial palpus with scales on lateral surface dull red-orange, with scattered straw yellow and brick red scales; medial surface pale yellow. Scape pale yellow to straw yellow; sensillae approximately same width as flagellomere, recurved, but not as strongly as in other Caribbean Argyrotaenia; dorsal scales of flagellum alternating between a basal row of mahogany red and apical row of red-orange scales. Thorax. Typical of genus. Dorsum of pro-and meso-thorax pale yellow to red-orange; tegulae concolorous, slightly darker in some specimens. Lateral surface of forelegs warm brown to dark brown, lateral surface of midlegs and hindlegs straw yellow to white, tarsi and tibial spurs occasionally warm brown. Medial surface of legs white. Forewing (Fig. 5G) costa with a conspicuous concavity at distal third, FWL 5.0–7.0 mm (mean = 5.9; n = 17). Scaling on dorsal surface of forewing with antemedian and postmedian interfasciae light yellow, strongly mottled with orange and ochraceous red throughout, banding obsolete in some specimens, well-developed in others; basal fascia, median fascia, and subapical blotch variable, sometimes nearly obsolete, visible only as faint brick red along costa, in other specimens jet black with a wash of blue-gray scales; fringe with apical half dark red-orange near apex, basal scales of fringe replaced with pale yellow scales towards tornus. Dorsal surface of hindwing golden orange; short fringe scales concolorous, longer scales pale yellow to off-white. Ventral surface of forewing orange, with white and ochraceous red markings along costa. Ventral surface of hindwing as on dorsal surface. Abdomen. Vestiture with scaling concolorous with hindwing, almost gold. Genitalia (Fig. 15B) with uncus moderate in width, narrowest at midpoint, slightly bulbous in distal third, apicoventral setae sparse, short; arms of gnathos unmodified, evenly curved, but with dorsal ridge giving appearance of it being strongly bent; tegumen moderate; transtilla thick, U-shaped; valva broadly circular; sacculus apparent at base to 0.5 × of valva, narrow beyond; dense cluster of slender deciduous setae at base of valva; presaccular gap relatively narrow; juxta hexagonal, shallowly notched; phallus evenly curved, caulis minute; approximately twelve cornuti in holotype, approximately 0.33 × length of phallus, thin, curved, deciduous.
Description
Female (n = 8). Head. As in male except with extensive ochraceous red scaling on vertex, frons, and scape; lateral surface of labial palpus dull red-orange, with scattered brick red scales; sensillae short, porrect, no more than 0.5 × width of flagellum. Thorax. As in male but dorsum of pro- and meso-thorax with more extensive mahogany red scaling. Forewing with slightly more pronounced concavity along distal third of costa at subapical blotch; FWL 6.5–9.5 mm (mean = 7.6; n = 8). Dorsal surface of forewing (Fig. 5H) with banding more apparent than in male, mottling absent, basal fascia, median fascia, and subapical blotch mahogany red, but overlaid with purplish scaling, which is most noticeable under magnification. Submedian and subterminal interfascia straw yellow, but similarly overlaid with purplish scaling, obscuring most yellow scales. Fringe with apical lighter than male, apical half salmon pink, occasional brick red scales present. Dorsal surface of hindwing with fringe entirely concolorous with hindwing. Abdomen. Vestiture golden orange to warm brown. Genitalia (Fig. 17A) with papillae anales triangular, rounded laterally; apophyses posteriores approximately 0.5 × length of sternum VII; apophyses anteriores 0.75–1.0 × length of sternum VII; sterigma well-sclerotized, broadly bowl-shaped; ductus bursae widening gradually anteriorly; ductus seminalis arising at approximately 0.2 × length of ductus bursae; corpus bursae large, ovoid; signum moderate in width, long, J-shaped; capitulum of signum prominent, evenly rounded.
Distribution
Argyrotaenia jamaicana is known exclusively from Jamaica (Fig. 23) at mid- to high elevations (350–1230 m). It appears to be replaced by A. amatana on the immediate coast.
Ecology
One male from BMNH was reared from Parthenium hysterophorus L. (Asteraceae). It is likely a generalist. Capture dates range from February to November, suggesting several generations per year.
Remarks
The above represents the first description of the female of A. jamaicana.
The holotype of Argyrotaenia minisignaria chalarostium was erroneously labeled as a female paratype of A. jamaicana. See the remarks under Claduncaria chalarostium for a full explanation. One male from BMNH is labeled as “Tortrix partheniana type ♂.” We can find no published record of this name and treat it as an unavailable manuscript name.
One male and one female were barcoded, but a sequence of > 500 bp was only recovered for the female, so we are unable to discuss sequence divergence within this species. See the remarks under A. amatana regarding this species’ relationship to it. COI sequence divergence between A. jamaicana (n = 1) and A. vinalesiae (n = 1) was 3.2%.
Taxon Treatment
- Austin, K; Dombroskie, J; 2020: A taxonomic revision of the Archipini of the Caribbean (Lepidoptera, Tortricidae, Tortricinae) ZooKeys, 982: 33-147. doi
Images
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Other References
- ↑ Austin K, Dombroskie J, Matthews D, Miller J (2019) A review of the Archipini of The Bahamas with the description of a new species of Argyrotaenia Stephens (Tortricidae).Journal of the Lepidopterists’ Society73(1): 5–17. https://doi.org/10.18473/lepi.73i1.a2
