Rhyacopsyche jimena Flint

Wasmund, Anne M. & Holzenthal, Ralph W., 2007, A revision of the Neotropical caddisfly genus Rhyacopsyche, with the description of 13 new species (Trichoptera: Hydroptilidae), Zootaxa 1634, pp. 1-59 : 14-15

Rhyacopsyche jimena Flint

Fig. 18

Rhyacopsyche jimena Flint, 1991:59 [Type locality: Colombia, Dpto. Antioquia, Quebrada la Jimenez, Sopetran; NMNH; male].

This is the second species assigned to the turrialbae group, united by the similarity of the inferior and intermediate appendages. Rhyacopsyche jimena closely resembles R. colubrinosa , but can be distinguished by the membranous, hooklike intermediate appendage and the more rounded apices of the inferior appendage.

Adult. (male n=1). Forewing length 2.5 mm. Color in alcohol, brown. Sternum VII with apicomesal point.

Male genitalia. Abdominal segment IX sparsely setose, anterior margin slightly rounded; sternum IX, in lateral view, with posterior margin lanceolate; posterior margin slightly inflated midlaterally; dorsolateral lobe of segment IX slightly produced, in dorsal view rounded, deeply divided, widely separated, apex bearing several short, dark, peglike setae. Tergum X partially retracted inside segment IX, with long basal processes, articulating with intermediate appendage. Intermediate appendage large, narrowing, in ventral view, hooklike. Inferior appendage tall, heavily setose, divided into dorsal and ventral lobes, the ventral lobe long, apex rounded, the dorsal lobe with slightly lanceolate apex and small dorsal process bearing 1 large peglike seta. Phallus base inflated, membranous sheath absent; central tubule with truncate apex; lateral process not evident.

Material examined. COLOMBIA: Antioquia, Quebrada La Jimenez, Mun. Sopetran, trap C, 780 m, 3.viii.1983, U. Matthias — 1 male (paratype, NMNH).

Distribution. Colombia.

Figures

FIGURE 18. Rhyacopsyche jimena Flint. Male genitalia: A—lateral; B—dorsal; C—ventral; D—phallus, dorsal.