Ochrotrichia tenanga (Mosely 1937)

Ochrotrichia (Ochrotrichia) tenanga (Mosely)

Polytrichia tenanga Mosely, 1937:185.—Fischer, 1961:176.

Ochrotrichia tenanga.—Ross, 1944:275.—Fischer, 1971:298.—Flint, 1972a:8.

This is the first record of the species from South America, although it is the most widely distributed species of the genus in Central America. Previously it has been recorded from Mexico, Guatemala, Honduras, Costa Rica, and Panama.

MATERIAL.—VENEZUELA, ARAGUA: Estacion Piscicultura, 17–18 Jun 1975, 1.

Ochrotrichia (O.) tenanga (Mosely)

Polytrichia tenanga Mosely, 1937:185.—Fischer 1961:176.

Ochrotrichia tenanga (Mosely).—Ross 1944:275.—Fischer 1971:298.

This species, O. felipe Ross and O. palitla, new species, form a closely related complex within which differences are mostly confined to the basal processes of the tenth tergum. O. tenanga may be recognized by the lack of any basal process on the left side of the tenth tergum, and by having a single long process on the right side.

ADULT.—Length of forewing, 2 mm. Color brown; forewing darker anteriorly, paler posteriorly, with some indistinct pale marks, posteroapical fringe pale. Male genitalia: Ninth tergum strongly depressed and produced anteriad. Tenth tergum with a middorsal spur overlaying a black-tipped spine which barely surpasses spur (in a male from Fortin de las Flores, this spine is greatly elongated, Figure 35); right side with a long slender ventrolateral spine, barely surpassing all other processes, dorsolaterally with a slender, black-tipped spine nearly as long and with a rather membranous process between them; left side terminating in a heavy hook, angled to right and a more slender rounded plate. Clasper long, slender, apex rounded; with a row of black peglike setae around apex, along ventral margin and on midbasal ridge. Aedeagus short, tubular.

MATERIAL.—MEXICO: VERACRUZ: Rio Tacolapan, route 180 km 551, 25–26 July 1966, Flint & Ortiz, 8♂; Fortin de las Flores, 22 May 1965, Rabago, 2♂. TABASCO: Rio Puyacatengo, east of Teapa, 28–29 July 1966, Flint & Ortiz, 11♂. GUATEMALA: ESCUINTLA: Escuintla, Grutas de San Pedro Martir, 10 August 1965, P. J. Spangler, 2♂. HONDURAS: COMAYAGUA: Rio Humuya, northwest of Comayagua, 3 August 1967, O. S. Flint, Jr., 2♂. COSTA RICA: GUANACASTE: Rio Ahogados, 10 miles (16 km) northwest of Liberia, 25 July 1965, P. J. Spangler, 1♂; Las Canas, 13 July 1965, P. J. Spangler, 4♂, PANAMA: CHIRIQUI: Rio EL Pueblo, Dolega, 2000 feet (600 m), 27 June 1964, A. Broce, 23♂; Rovira, David, 2200 feet (660 m), 13 July 1964, A. Broce, 3♂; Doleguita, David, 3 June 1964, A. Broce, 11♂. CANAL ZONE: Rio Agua Salud, near Gamboa, July 1967, W. W. Wirth, 1♂; Pipeline Road, near Gamboa, July 1967, W. W. Wirth, 1♂. (Described from Mexico, Chiapas, Saltenango de la Paz.)