Marilia salta Flint 1983

Marilia salta

This is a very distinctive member of the section, with two pairs of spurs on the hind leg. The tenth tergum, which tapers to a point and bears a dorsal, subapical point, is unique, as is the clasper, the basal segment of which is produced laterally beyond the apical segment.

ADULT.—Length of forewing, 9 mm. Color grayish brown; body and appendages with white hair, antennae annulate; forewing with intermingled gray and white hairs, pattern very indistinct. Eyes of male almost touching middorsally. Spurs 2,4,4.

Male Genitalia: Ninth segment with a large, broad, anterolateral lobe; dorsal brace curving ventrad anteriorly. Cercus almost triangular in outline in lateral aspect, in dorsal, massive, almost rectangular. Tenth tergum tapering to a rounded point in lateral aspect with a vertical, subapical, pointed process; in dorsal aspect with sides subparallel, apex with a U-shaped excision. Clasper with basal segment broad basally, evenly curved dorsad, apex produced beyond insertion of apical segment; in posterior aspect with a rounded basomesal shoulder and an apicolateral lobe; apical segment terete, short, inserted subapically and hidden from view in lateral aspect. Aedeagus curved basally; with a strong basal rod, phallotremal sclerite a small, ringlike structure.

MATERIAL.—Holotype (male): ARGENTINA, PCIA. ENTRE RÍos, Río Uruguay, Salto Grande, 16 Nov 1973, O.S. Flint, Jr., USNM Type 100560.

Paratypes: Same data as holotype, 10, 4.

Marilia salta là một loài Trichoptera trong họ Odontoceridae. Chúng phân bố ở vùng Tân nhiệt đới.