dcsimg

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Leptonema bifurcatum

Leptonema speciosum (Burmeister).—Mosely, 1933:15–17, figs. 13–16 [misidentification].

MALE.—Color brown; forewing brown, faded, apparently with a darker spot on the nygma and some darkened areas apically and mesally, but without apparent longitudinal dark streaks. Length of forewing, 16 mm.

Malar space narrow, about height of eye. Parafacial area about width of malar; postocular area about width of parafacial; type lacks all postocular setae. Basal segment of maxillary palpus length of second, third length of second, fourth length of second, fifth segment lacking. Processes of fifth sternum small, rounded.

Genitalia: Tenth tergum with wart a large, rounded; warts b and c lacking; lateral lobe elongate, rounded apically; mesal lobe membranous. Clasper with apical segment elongate, about length of basal segment; base of clasper without processes. Phallobase short and broad, basal half at right angles to stem and greatly enlarged; process a slightly produced and serrate dorsally, process g large, with a small basolateral spine and bifurcate apically; fused b–c lobe hourglass shaped in ventral aspect with a pair of small basal spines and bifid apically, tip upturned in lateral aspect.

MAP 13.—Distributions of Leptonema trispicatum, new species, L. boraceia, new species, L. bifurcatum, new species, and L. eugnathum (Müller).

FEMALE.—Similar in color to male, but badly faded. Length of forewing 16 mm.

TYPES.—Holotype (male): BRAZIL, Edo. Espírito Santo, ex coll. Fruhstorfer.

Paratype: Same data, 1.

Types in NMW.
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cc-by-nc-sa-3.0
bibliographic citation
Flint, Oliver S., Jr., McAlpine, J. F., and Ross, H. H. 1987. "A Revision of the Genus Leptonema Guérin (Trichoptera: Hydropsychidae: Macronematinae)." Smithsonian Contributions to Zoology. 1-193. https://doi.org/10.5479/si.00810282.450