Notidobiella inermis Flint

Holzenthal, Ralph W. & Blahnik, Roger J., 2010, Systematics of the Neotropical caddisfly genus Notidobiella Schmid (Trichoptera, Sericostomatidae), with the description of 3 new species, ZooKeys 71, pp. 23-47 : 33-34

Notidobiella inermis Flint Figs 15-16

Notidobiella inermis Flint 1983:90 [Type locality: Chile, Pcia Cautín, near Pucón; NMNH; male].

Description.

Notidobiella inermis shares with Notidobiella ecuadorensis broadly spatulate inferior appendages with short, thumb-like mesal processes, but differs in details of the shape of the inferior appendages, as illustrated, and in the possession of a narrow posteromesal process on sternum VII.

Adult. Forewing length 6.0-6.5 mm male (n=2); 8.0 mm female (n=2). Color brown, palps and legs stramineous; forewings brown, with scattered golden setae. Sternum VII of male with narrow, fingernail-like, posteromesal process.

Male genitalia (Fig. 15). Segment IX with anterior margin produced ventrolaterally; tergum IX narrow; sternum IX with pair of short, posteromesal processes, bearing long apical setae. Tergum X simple, subquadrate in lateral view, with slight dorsomesal excavation, setose. Preanal appendage short, ovate, setose. Inferior appendage prominent, heavily setose, very broadly spatulate, narrow basally, with short, thumb-like mesal process on ventromesal margin. Phallic apparatus simple, tubular, relatively straight from base to apex; endophalic membranes prominent, but simple; phallotremal sclerite not apparent.

Female genitalia (Fig. 16). Tergum VIII quadrate; pleural membranes extensive, highly folded; sternum VIII broad, anterior margin with apodemal ridge, extending dorsolaterally; posterolateral corners rounded, heavily setose, especially posteriorly. Tergum IX with heavily setose, posterolateral lobes, subovate, small, bilobed in dorsal and lateral views; with lateral, microsetose, elevated ridge; sternum IX highly membranous, the membranes with parallel pleats or folds; dorsally tergum IX with sclerotized ridge. Tergum X with broad heavily setose projection. Internal vaginal sclerites complex, no discernable differences among the species; bursa copulatix subspherical, semisclerotized; pair of small, oval sclerites lying in membranes above vaginal sclerites (position variable).

Material Examined:

CHILE: Llanquihue, Salto Chamiza, Correntosa, 100 m, 19.i.1987, C.M. and O.S. Flint, Jr., 1 male, 2 females (pinned) (NMNH); Llanquihue, El Chinque, N Correntosa (S Volcán Calbuco), 300 m, 20-25.i.1980, 1 male paratype (pinned) (NMNH).