Marilia lateralis Flint 1983

Marilia lateralis

This species is also a member of the 2,4,4 section. From the other species of the group, it differs in the nearly parallel-sided claspers with a very short apical segment, in the rounded apex of the tenth tergum, which is slightly sclerotized ventrally and nearly parallel-sided in dorsal aspect, and in the very distinctive phallotremal sclerite.

ADULT.—Length of forewing, 7–8 mm. Color brownish gray; body and appendages with white hair, antennae annulate; forewing with white and grayish hair, indistinctly darker over chord. Eyes of male meeting middorsally. Spurs 2,4,4.

Male Genitalia: Ninth segment with vertical anterior margin; lateral braces parallel, often with a thin vertical rod between them. Cercus short, narrow. Tenth tergum with apex rounded in lateral aspect, with ventrolateral area lightly sclerotized; in dorsal aspect parallel-sided, apex with a V-shaped excision. Clasper with basal segment parallel-sided, straight; apical segment short, straight. Aedeagus curved basally; phallotremal sclerite C-shaped in lateral aspect with ends enlarged (ventral arm divided mesally in ventral aspect), ventrally subtended by a small sclerite.

MATERIAL.—Holotype (male): PARAGUAY, DPTO. SAN PEDRO, Arroyo Tapiracuay, San Estanislao, 27 Nov 1973, O.S. Flint, Jr., USNM Type 100558.

Paratypes: Same data as holotype, 3, 2. BRAZIL, EDO. MATO GROSSO, Corumbá, 14–23 Dec 1919, Cornell Univ. Exp., 2 (CUI); same, but 1 (MCZ). COLOMBIA, DPTO. META, La Macarena, 26–27 Jan 1969, R.E. Dietz, IV, 2. URUGUAY, DPTO. ARTIGAS, San Gregorio, 29 Nov 1959, Carbonell, Mesa, and San Martin, 1 (FHCU).