Stethobaroides villus Prena, 2025

Prena, Jens, 2025, Neotropical orchid-weevils of the genus Stethobaroides Champion (Coleoptera, Curculionidae, Baridinae), Zootaxa 5723 (2), pp. 227-244 : 236

Stethobaroides villus Prena , new species

( Figs. 4B , 9B )

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Diagnosis. Stethobaroides villus is one of three relatively large species from the Pacific side of central México. It differs from other known species by distinct dorsal punctation and conspicuous vestiture on the legs and all ventral parts ( Fig. 9B ). Species from other regions measure at most 3.3 mm.

Description. Total length 4.0– 4.1 mm, habitus as Fig. 9B , more elongate than smaller species; integument mostly black, antenna and distal tarsites brown, pronotum and elytral interstriae distinctly punctate and with microscopic setae, ventral portions and legs with conspicuous light yellow setae; penis with basal portion distinctly curved in lateral view, shape ovate-lanceolate in dorsal view, apex round ( Fig. 4B ); female unknown.

Etymology. The specific epithet is a Latin noun in apposition.

Life history. Unknown.

Distribution. The species is known only from the series collected at Adolph Lüdecke’s plantation “El Cora” in the former Territorio de Tepic, today a village in the municipality of San Blas, Nayarit, México.

Material examined. Holotype male, México, dissected, labelled “El Cora / Tepic / Ad. Lüdecke ” ( MfNB) . Paratypes 3: same data as holotype, 3 males ( JPPC 1 , MfNB 2 ) .

Figures

FIGURE 4. Stethobaroides, male genitalia, dorsal and lateral aspects. A, S. elcoranus; B, S. villus; C, S. badicrus; D, S. nudiventris (from Toxpam); E, S. permixtus (from La Selva); F, S. lauro. Scale bar 0.5 mm.

FIGURE 9. Stethobaroides, dorsal and ventral aspects of males. A, S. piliventris from Santa Catarina Juquila, Oaxaca, México; L=4.3 mm (photos by R.S. Anderson). B, S. villus from Finca El Cora, Nayarit, México; L=4.0 mm; C, S. nudiventris from Finca Toxpam, Veracruz-Llave, México; L=3.0 mm.