Neotrichia betegui, Armitage & Harris & Rodriguez, 2025

Armitage, Brian J., Harris, Steven C. & Rodriguez, Viterbo, 2025, The Trichoptera of Panama XXVIII. Nine new species of microcaddisflies (Trichoptera, Hydroptilidae), Neotropical Biology and Conservation 20 (2), pp. 125-147 : 125-147

Neotrichia betegui sp. nov.

Fig. 5

Type locality.

Panama: Veraguas Province, Cuenca 132, San Francisco District, nr. La Perdiz, N of San Francisco, Río Beteguí; 8.36047°N, 80.99481°W, 144 m a. s. l.

Type specimen.

Holotype • ♂, in alcohol. Original label: “ Panama: Veraguas Province, Cuenca 132, San Francisco District, nr. La Perdiz, N of San Francisco, Río Beteguí ; 8.36047°N, 80.99481°W, 144 m a. s. l.; 28 Jan 2023; leg V. Rodriguez; UV light trap ”; MUPADI .

Diagnosis.

Neotrichia betegui sp. nov. appears to be a member of the Neotrichia caxima group of Keth et al. (2015), based on the reduced inferior appendages with some similarity to N. garra Keth from Belize, which also has some sclerotisation of the genitalia, but not to the extent seen in the new species. Neotrichia betegui sp. nov. is also distinguished by the mesally fused inferior appendages.

Description.

Male. Total length 1.7 mm (n = 1), 18 antennal segments, wings and body brown in alcohol. G enitalia (Fig. 5 ). Abdominal segment VIII annular. Segment IX narrow, rounded posteriorly, anteriorly truncate; ventrally rounded posteriorly; dorsally square. Segment X triangular, tapering distally with sclerotised dorsal margin; in dorsal view square, apical margin slightly incised, posterolateral margins notched. Subgenital plate in lateral view sclerotised, narrow basally, widening distally to truncate apex, which is divided into a pair of rounded knobs; in ventral view, narrow, apically divided into pair of lobes, each bearing stout setae. Bracteole in lateral view narrow basally, over length, widening slightly distally to rounded apex; in dorsal and ventral views, narrow over length and curving, extending posteriorly as narrow band. Inferior appendage sclerotised, short and subrectangular, rugose apically; in ventral view, complex, fused sub-basally, anterior portion tapering to rounded apex, rugose on inner margin, basal portion square and extending anteriorly with mesal, sinuate process. Phallus in dorsal view tubular, constricted at mid-length and bearing thin paramere encircling shaft, apex heavily sclerotised, divided into pair of elongate rods of uneven length.

Female and immature stages.

Unknown.

Etymology.

Named for the Río Beteguí from which the type specimen was collected. The derivation of " betegui " is unclear. The prefix " be " means exists and the Aztec word for lizard translates into Spanish as " tegui ". However, we have no confirmation that this was the genesis of the specific epithet. The name is a noun in the genitive case.

Figures

Figure 5. Neotrichia betegui sp. nov., male holotype, genitalia A left lateral B dorsal C ventral D phallus, dorsal E phallus apex lateral.