Leptonema ramosum Flint, McAlpine & Ross 1987

Leptonema ramosum

Leptonema albovirens (Walker).—Mosely, 1931:170 [misidentification]; 1933:47 [misidentification of material from British Guiana only].

Leptonema dissimile Mosely.—Flint, 1974:101, figs. 225–227 [misidentification].

Leptonema viridianum Navás.—Flint, 1978:384, figs. 55, 56 [misidentification of example from Río Marauiá, Brazil].

MALE.—Wings and body uniformly pale greenish, rapidly fading to brownish white. Forewing 10–14 mm.

Malar space narrow, about height of eye. Parafacial and postocular areas as wide as malar space; postocular area with a row of 3–5 stout setae. Maxillary palpus with fifth segment less than half as long as basal 4 segments combined. Processes of fifth sternum moderately large, round.

Genitalia: Tenth tergum with warts a and b small, apical; lateral lobe elongate, rounded apically, apex with a pocket on inner side into which wart b is set. Clasper with a small patch of spines near apex of inner face, basal segment 4 times as long as apical; with a basomesal lobe that is truncate in either lateral or posterior aspect. Phallus with base large, angled to axis of stem; process a arched, with a middorsal crest; b and c long, reflexed, spinulate; d, pointed, decurved; e reduced to a row of spinules on phallobase; g a pointed lobe, produced caliper-like across the venter.

FEMALE.—Similar, pale greenish; hind wing with a yellow cell on vein Cu2. Length of forewing 13–15 mm.

TYPES.—Holotype (male): VENEZUELA, Edo. Bolívar, 10 km S of km 88, Piedra de Virgen, 20 Mar 1982, G.F and J.F. Hevel.

Paratypes: Same data, 1; Salto Pará, Río Caura, 250 m, 20–22 Nov 1978, A. Chacon H., 8, 10; Kanarakuni, 450 m, 2 Feb 1967, Fernandez and D’Ascoli, 1, 1. [T.F. Amazonas], Mt. Duida, 15–22 Nov 1929, Tate Expedition, 3, 1. SURINAME, Litani River, Waremapan rapids, 30 Jul 1939, D.C. Geijskes, 2, 2. GUYANA, Mazaruni-Potaro Dist., Takutu Mts., 6°15′N, 59°5′W, 11–15 Dec 1983, Spangler et al., 2.

MAP 27.—Distributions of Leptonema spangleri, new species. L. ramosum, new species, and L. viridianum Navás.

Other Material: GUYANA, Kieteur, 26 May 1920, J. Ogilvie, 1. Issororo, N.W.D., Dec 1918, G.E. Bodkin, 1.

Holotype in USNM; paratypes in AMNH, IZAM, RNH, and USNM; material in BMNH.

Leptonema ramosum là một loài Trichoptera trong họ Hydropsychidae. Chúng phân bố ở vùng Tân nhiệt đới.