Atopsyche (Atopsyche) weibezahni Flint 1974

Atopsyche weibezahni

This species seems to be most closely related to A. choronica, new species, with which it agrees in possessing nonarticulated, dorsal processes from the aedeagus, and in the general structure of the aedeagus and claspers. There are considerable differences in the shapes of the various structures, however, especially that of the paracercus.

ADULT.—Length of forewing unknown, but probably about 7 mm. Color unknown. Third and fourth abdominal terga with anterolateral pouches; fifth sternum with anterolateral process about twice as long as broad, with a posteromesal process about half length of sternum; sixth sternum with posteromesal process slightly longer than sternum, that of seventh sternum about half length of sternum. Male genitalia: Ninth and tenth segments typical. Paracercus with a large, erect, middorsal, pointed, and somewhat irregular lobe, with ventral margin rolled laterad, and with an irregularly rounded apical lobe rolled lateral and dorsad. Filicercus long and slender; cercus buttonlike. Clasper with basal segment very long, dorsal margin slightly sinuate; apical segment fingerlike, directed posteromesad, with a row of mesal setae, dorsal margin slightly inrolled. Aedeagus with base large, rounded, bearing a single dorsomesal process, whose tip is slightly twisted; lateral lobe with a basolateral expansion, apex with a small dorsal spur and a ventral lobe bearing spicules mesally; with a slender internal spine.

MATERIAL.—Holotype, pharate male: VENEZUELA, MERIDA: Rió Santo Domingo, outlet to Laguna de Mucubaji, 3550 m, 4 March 1966, F. H. Weibezahn, USNM Type 72720. Paratype: Same data, 1 .