Eucosma fraudabilis Heinrich

Gilligan, Todd M. & Wright, Donald J., 2013, The type species of Eucosma Hübner (Lepidoptera: Tortricidae: Eucosmini), Zootaxa 3630 (3), pp. 489-504 : 501-502

Eucosma fraudabilis Heinrich

( Figs. 14–15 , 28 , 31 )

Eucosma fraudabilis Heinrich 1923:98 , Fig. 161.

Eucosma fraudabilis ; McDunnough 1939:46; Powell 1983:34; Brown 2005:320.

Diagnosis. Eucosma fraudabilis ( Figs. 14–15 ) differs from the other species considered here in having two conspicuous metallic-gray bands extending from costa to dorsum (elements 4 and 5) in the median area of the forewing. It is readily separated from E. circulana , E. gemellana , and E. paragemellana by male valval shape ( Figs. 25–28 ). Moreover, it is the only species considered here in which the anterior lobes of the papillae anales are developed into ventral extensions flanking the anal opening.

Description. Head. Frons creamy white; vertex straw yellow; labial palpus creamy white with pale brown tints on lateral surface of second segment; antenna concolorous with vertex. Thorax. Dorsal surface straw yellow; fore- and mid-legs with anterior surfaces pale brown, posterior surfaces creamy white; hind-legs creamy white; tarsi with weakly contrasting white annulations. Forewing ( Figs. 14–15 ): 3 FWL 5.1–7.8 mm (mean = 7.0, n = 26), AR = 2.70, CFR = 0.34; Ƥ FWL 7.6–7.7 mm (mean = 7.7, n = 3), AR = 2.65; costal margin weakly arched; apex acute; termen straight to weakly convex; dorsal surface straw yellow, with metallic-gray subbasal and median bands from costa to dorsum and a large circular ocelloid region extending from tornus nearly to costa; ocelloid region with apical quadrant edged by metallic-gray arc and with anterior portion of field filled with gray-brown scales with whitish apices; ocellus consisting of four obscurely defined rows of black dots on a creamy white field, with transverse metallic-gray bars at the proximal, medial, and distal positions; subcostal area anterior to ocelloid region crossed by metallic-gray striae and/or fragments thereof; distal one-half of costa with obscure whitish strigulae; fringe brown. Hindwing: brownish gray. Abdomen. Male genitalia ( Fig. 28 ) (n = 6): Uncus strongly produced, tapering distally, and clearly differentiated from dorsolateral shoulders of tegumen; socii fingerlike; phallus stout, moderately long, tapering distally; anellus approximate to phallobase; vesica with 9–20 (mean = 14, n = 3) deciduous cornuti; valva with costal margin concave, ventral emargination moderate, NR 0.42–0.59 (mean = 0.50, n = 6), saccular corner broadly rounded, SA 127–150 (mean = 139, n = 6), distal margin of basal excavation with broad tablike pulvinus; cucullus with apex semicircular, distal margin weakly convex of nearly uniform curvature, anal angle acute and moderately produced, setation of medial surface coarse toward distal margin and anal angle grading to fine toward costal margin and apex; vertex of anal angle with one spiniform seta of ca. twice the size of adjacent setae on medial surface of cucullus. Female genitalia ( Fig. 31 ) (n =2): Papillae anales with posterior lobes facing ventrally, anterior lobes produced into laterally facing ventral extensions; margins of posterior lobes with long ventrally curving setae; margins of anal opening with moderately long hook-tipped setae; lamella postvaginalis gradually widening posteriorly, with posterior margin concavely indented; lamella antevaginalis ringlike; sternum 7 with lateral margins concavely inflected, posterior margin invaginated to one-half length of sterigma and diverging from lateral margins of sterigma; scaling of sternum 7 dense on posterior projections and anterolateral corners, sparse elsewhere; ductus bursae with sclerotized patch at juncture with ductus seminalis and with microspinules on inner surface in the vicinity of that juncture; corpus bursae with two signa, one much larger than the other.

Holotype ( Fig. 15 ). 3, North Carolina, [Moore Co.], Southern Pines, slide 74784, USNM.

Paratypes. North Carolina, [Moore Co.], Southern Pines, 1– 7 June (1 3), 8–15 June (1 3, slide TMG 600), 1– 7 July (2 3), 8–15 July (3 3; 1 Ƥ, slide 124084; 1 misidentified Ƥ of P. scintillana , slide TMG 599); 16–23 July (1 3), USNM; 8–15 June (2 3), 1– 7 July (1 Ƥ, slide DJW 3164), 16–23 July (1 3; 1 Ƥ), AMNH. This accounts for fifteen of the seventeen paratypes mentioned by Heinrich (1923).

Additional material examined. FLORIDA: Suwannee Co., Suwannee River State Park, H. D. Baggett, 27 June 1981 (1 3) MEM; Duval Co., Jax. Police Academy, H. D. Baggett, 20 August 1980 (1 3) MEM. GEORGIA: Emanuel Co., Ohoopee N. A., R. L. Brown, 16 June 2002 (3 3) MEM. LOUISIANA: Tangipahoa Parish, Sandy Hollow WLMA, D. P. Pashley, 26 May 1993 (1 3) MEM; 31 May 1994 (1 3, slide DJW 2017) DJW. NEW JERSEY: Essex Co. Park, 15 August (1 3, slide DJW 1180) AMNH. NORTH CAROLINA: Hoke Co., Ft. Bragg, 0.5 mi. NE Jct. Blues Rd & Manchester Rd., J. B. Sullivan & S. P. Hall, 20 June 2001 (1 3) USNM; Moore Co., Southern Pines, 8–15 July (1 3, slide DJW 1329) AMNH; Robeson Co., Maxton, A. B. Klots, 20 June 1944 (1 3), 10 July 1944 (2 3), 10 August 1944 (1 3) AMNH. VIRGINIA: Nottoway Co., Ft. Pickett Mil. Res. Grassland, 0.8 km E. jct. Wilcox & Range Rd., A. C. Chazal, 6 July 2000 (1 3, slide 118545) USNM; Page Co., Skyland, H. G. Dyar, 15 July 1911 (1 3, slide 70355) USNM.

Distribution ( Fig. 35 ) and Flight Period. Florida, Georgia, Louisiana, New Jersey, North Carolina, Virginia; late May – mid-August.

Figures

FIGURE 35. Distribution map for E. circulana, E. gemellana, E. paragemellana, and E. fraudabilis.

FIGURES 4 – 15. Eucosma circulana and closely related species. 4, Hübner’s illustration. 5 – 7, E. circulana (5, Neotype). 8 – 11, E. gemellana. 12 – 13, E. paragemellana (13, Holotype). 14 – 15, E. fraudabilis (15, Holotype).

FIGURES 25 – 28. Male genitalia. 25, E. circulana. 26, E. gemellana. 27, E. paragemellana. 28, E. fraudabilis. Scale bar = 0.5 mm.

FIGURES 29 – 31. Female genitalia. 29, E. circulana. 30, E. paragemellana. 31, E. fraudabilis. FIGURES 32 – 34. Sterigma and sternum 7. 32, E. circulana. 33, E. gemellana. 34, E. paragemellana. Scale bar = 0.5 mm.