Paectes tumida Pogue

Pogue, Michael G., 2013, A review of the Paectes arcigera species complex (Guenee) (Lepidoptera, Euteliidae), ZooKeys 264, pp. 125-163 : 150-155

Paectes tumida Pogue sp. n. Figs 26-28364349

Type material.

Holotype male - SURINAME: Geldersland, Collection Wm. Schaus, USNM ENT 00148679, genitalia slide male, USNM 135917 [green label]; HOLOTYPE / Paectes tumida Pogue" [red label]. Paratypes - (6 males, 4 females) COLOMBIA: META: Villavicencio, 400 m, (2 males), genitalia slides MGP 1299, MGP 1344, Fassl [BMNH]. FRENCH GUIANA: Nouveau Chantier, May (1 male), genitalia slide MGP 1308, Le Moult [BMNH]; St. Jean du Maroni, (1 male), genitalia MGP 1346, Le Moult [BMNH]. GUYANA: CUYUNI-MAZARUNI: Bartica, June 1901 (3 females), genitalia slide MGP 1307 [BMNH]; POTARO-SIPARUNI: Potaro River, 9-13 July 1912 (1male), genitalia slide MGP 1306, P. Rendall [BMNH]; Tumatumari, Dec. 1907 (1 female) [BMNH]. SURINAME: PARAMARIBO: Paramaribo, (1 male), Genitalia MGP 1347 [BMNH].

Etymology.

The species name is derived from the Latin tumeo (swell), referring to the swollen base of the free saccular extension in the male genitalia.

Diagnosis.

Forewing with a white medial area in Paectes tumida ; in Paectes similis it consists of white-tipped gray scales, so the area is less contrasting than in Paectes tumida ; in Paectes obrotunda medial area is mixed with gray, ferruginous, and a few cream-colored scales and also is less contrasting than in Paectes tumida . The postmedial line is faint and black in Paectes tumida ; in Paectes similis it is black and well developed with a faint double line at the posterior margin; in Paectes obrotunda the postmedial line is ferruginous and double at the posterior margin and black and ferruginous where it curves toward the subapical black dash.

The male genitalia of Paectes tumida have elongate, curved setae on the dorsal surface of the valve, whereas in Paectes obrotunda and Paectes similis the valve has shorter, hairlike setae. The costal margin is convex in Paectes tumida , but straight in Paectes similis , and slightly concave in Paectes obrotunda . The free saccular extension is elongate and extends above the costa in Paectes obrotunda , but is shorter and does not extend above the costa in Paectes tumida and Paectes similis . In Paectes tumida , the base of free saccular extension is swollen and densely covered with spicules, but in Paectes obrotunda and Paectes similis the base is not swollen and without spicules.

Description.

Male.Head - antenna broadly bipectinate to 1/2 length then filiform; eyes large, globular; vertex with broad scales, mixture of white, brown, and black scales; frons with broad scales, projecting slightly beyond anterior eye margin, white and brown scales; labial palp porrect, mixture of brown, white, and pale ferruginous scales, internal surface white. Thorax - prothorax mixture of pale-gray, gray, and brown scales, medial band dark brown; patagium of brown, pale-ferruginous, and white broad scales, mixed with hairlike scales; protibia white mixed with black, apical band white, obscure, tarsi black with distinct white apical bands; middle and hind legs missing in holotype; forewing length 10.9 mm; costal area brown; basal area mixture of white, pale-ferruginous, and brown scales, not a well-defined ovate spot; antemedial line consists of a few black scales between posterior margin and anal vein then extending along anal vein a short distance before slightly curving upward; central area of wing from basal area to postmedial line mostly white mixed with brown scales and contrasted with subterminal and terminal areas, thin curved brown line from posterior margin to anal vein and contiguous with thin line from anal vein to CuA2 vein; reniform spot obscure, a pair of small, round brown spots; postmedial line brown and pale ferruginous, double line from posterior margin to vein CuA2, single curved line between M2 and M1; black dash between veins R5 and M1 that extends to outer margin; apical spot white; subterminal area brown mixed with pale ferruginous and white scales; terminal line a series of black, shallow scalloped lines between veins; fringe brown; hind wing marginal shading dark gray, veins heavily highlighted dark gray, areas between veins white; anal fold white with dark-gray striped pattern; fringe white. Abdomen -male eighth segment membranous with a pair of short, sternal, sclerotized bars and a pair of longer, wider, dorsal sclerotized bars; a pair of lateral, coremata bearing numerous, fine, elongate setae. Genitalia (Fig. 36) - Uncus triangulate, apex recurved and pointed, 1.3 × length of subscaphium; subscaphium, triangulate, decurved, apex pointed; valve membranous, short, truncate, covered with many elongate, curved setae; costa of valve extends above membranous part of valve, margin straight, apex broadly rounded, tuft of elongate setae near distal tip of apex; sacculus well developed, proximal half fused with valve, distal half free, sinuate, produced distally, apex round, covered with minute spicules; saccus triangulate; aedeagus straight, dorsum in distal third covered with minute spicules; base of vesica a short tube with two flat, elongate cornuti with pointed apices directed posteriorly, emerging from tubelike base, vesica ovate, apex of vesica with an irregular sclerotized area bearing a short, thumblike cornutus. Female. As in male except:antenna filiform; forewing length 11.5 mm; antemedial line dark brownish gray, faint, angulate from R vein to Cu vein then curved becoming a prominent black partial curve just dorsal to anal vein then straight to posterior margin; medial area less white than male; medial line dark brownish gray, series of variously sized, coalesced excurved lines from R vein to posterior margin; postmedial line dark brownish gray, double, slightly sinuate and fades medially. Genitalia (Fig. 43) - Papillae anales crescent shaped, soft, fleshy, covered with numerous setae; anterior apophyses fused with eighth sternite; posterior apophyses present; venter of eighth segment spiculate in distal half, sharply pointed projections laterally, small crescent-shaped, spiculate medial line; ostium bursae ovate with medial, curved, sclerotized bar; ductus bursae striate; appendix bursae juncture approximately midway between ostium bursae and corpus bursae, striate, curved; corpus bursae somewhat triangulate, covered internally with numerous thornlike signa pointing inward.

Distribution.

Specimens have been collected from Villavicencio, Colombia, and from Guyana, Suriname, and French Guiana (Fig. 49).

Remarks.

Paectes tumida is described to differentiate the several species previously identified as Paectes obrotunda in the USNM collection.