Leptonema alceatum Flint, McAlpine & Ross 1987

Leptonema alceatum

MALE.—Wings unicolorous, pale sandy-brown, probably greenish in life. Forewing length 13–15 mm.

Malar space narrow, about height of eye. Parafacial and postocular areas about as wide as malar; post ocular area with a row of 5–7 stout setae. Maxillary palpus with fifth segment less than half as long as basal 4 segments combined. Processes of fifth sternum pyriform, of intermediate size.

MAP 25.—Distributions of Leptonema albovirens (Walker). L. moselyi, new species, and L. archboldi Flint.

MAP 26.—Distributions of Leptonema alceatum, new species, and L. pallidum Guérin.

Genitalia: Tenth tergum lacking warts; lateral lobe elongate, apex projecting and rounded, ventral margin sclerotized and twisted with a finger-like process (of variable length) directed posteriad. Clasper relatively short and stout; apical segment short, basal segment about 5 times as long as apical with a few spinulose setae apicomesally, base without processes but transverse. Phallus with base broad, angled to stem; process a semierect, with a mesodorsal fimbriate crest, in dorsal aspect bilobed; b long, reflexed, strongly divided and fimbriate; c not distinguishable from b; d a decurved, spinulose process; e a membranous lobe bearing large setae; g elongate, slender, reflexed with many serrations.

FEMALE.—Larger, 15–16 mm. Hindwing with yellow cellule on Cu2.

TYPE.—Holotype (male): PERU, Dpto. Cuzco, Santa Isabel, Cosñipata Valley, 1 Jan 1952, F. Wyotkowski.

Paratypes: Same data, l, 1; same, but Hacienda Maria (tropical jungle, 2700′), 19 Feb 1952, 2; same, but Paucartambo, 17 Nov 1951, l, 1; Quince Mil, Aug 1962, L.E. Peña G., 8, 2; same, but Nov 1962, l. BOLIVIA, Dpto. La Paz, Santa Barbara, Coroico, 1100 m, 4 Jan 1976, L.E. Peña G., l; Río Coroico, 1200 m, 23–26 Nov 1984, L.E. Peña G., 13, 9. Dpto. Cochabamba, Chapare, Alto Palmar, 1100 m, 16 Mar 1961, J.E. Foerster, l.

Holotype in USNM; paratypes in CNC, INHS and USNM.