Popilius gibbosus ( Burmeister, 1847 )

Bevilaqua, Marcus & Fonseca, Claudio Ruy Vasconcelos da, 2022, Extending the geographic and altitudinal range of Popilius gibbosus (Burmeister, 1847) (Coleoptera: Passalidae) with taxonomical comments, Papéis Avulsos de Zoologia 62, pp. 1-5 : 3

publication ID	https://doi.org/ 10.11606/1807-0205/2022.62.002
persistent identifier	https://treatment.plazi.org/id/A6596253-FFFD-6E0D-FEAC-FCD49870A97A
treatment provided by	Felipe
scientific name	Popilius gibbosus ( Burmeister, 1847 )
status

Treatment

Popilius gibbosus ( Burmeister, 1847) View in CoL Figs. 1-2 View Figure 1 View Figure 2

Passalus gibbosus Burmeister, 1847: 507 View in CoL .

Pertinax gibbosus: Kaup, 1869: 21 .

Popilius gibbosus: Kaup, 1871: 76 View in CoL ; Kuwert, 1897: 299; Hincks & Dibb, 1935: 17; Reyes-Castillo, 1970: 107; Jiménez-Ferbans et al., 2018: 17.

Oileoides gibbosus: Pereira, 1941: 99 ; Hincks & Dibb, 1958: 7.

Material examined: BOLIVIA: Region Chapare – 400 m, 06-ix-58, leg. Zischka // Popilius gibbosus ( Burmeister, 1847) M. Bevilaqua det. 2020. 1 ♂ ( INPA). Bolivia oriental, Santa Cruz – 500 m, 24-xi-55, Zischka // Popilius gibbosus ( Burmeister, 1847) M. Bevilaqua det. 2020. 1 ♀ ( INPA).

Diagnosis: medium-sized specimens (24.5-26 mm),body flat ( Fig. 1 View Figure 1 ). Labrum with a concave anterior edge;clypeus large and wide with slightly concave anterior edge, with anterior angles large and acute; posterior angles large, almost fused with mediofrontal tubercles; clypeofrontal groove strong ( Fig. 2A View Figure 2 ). Frontal area straight or slightly convex, finely punctate. Posterior mediofrontal area with longitudinal groove and that extends until the central tubercle. Posterofrontal ridges weak, flat, straight, reaching the inner tubercles, which are inconspicuous. Central tubercle small, with apex not free, and deep groove on posterior region, fused and placed behind the lateroposterior tubercles, which are large, well-marked, and transverse. Lateropostfrontal areas shallow, with pubescent punctation. Canthus ocular with apex rounded, not reaching middle of eye. Antennal club with three large and narrow lamellae ( Fig. 2A View Figure 2 ). Central area of mentum not dilated, glabrous, impunctate; sides with large and shallow scars. Hypostomal process glabrous and convex laterally, without longitudinal groove ( Fig. 2B View Figure 2 ). Prothorax pubescent ventrally ( Fig.1B View Figure 1 ); anterior angles of prothorax rounded, not protruding ( Figs. 1A View Figure 1 , 2C View Figure 2 ); pronotal punctation present only on lateral fossae, with presence of short setae ( Fig. 1C View Figure 1 ). Marginal pronotal groove wide, deep and impunctate, practically reaching the longitudinal groove ( Fig. 2C View Figure 2 ). Prosternal process rhomboidal, with long and sparse setae ( Fig. 2D View Figure 2 ). Mesosternal scars narrow, shallow, glabrous, with opaque surface ( Fig. 2D View Figure 2 ). Metasternal disc not delimited by punctuations; metasternum without punctures on posterior region and densely pubescent laterally ( Fig. 2E View Figure 2 ). Humeri glabrous. Aedeagus slightly longer than wide; median lobe globose, slightly larger than basal piece and parameres together, and strongly sclerotized ventrally. Parameres smaller than basal piece, separated by a conspicuous suture (except centrally) ventrally. In dorsal view, projections of the parameres are not joined. The sclerotization of basal piece is truncate laterally, and membranous toward dorsal surface ( Fig. 2F View Figure 2 ).

Distribution: Colombia (Boyacá, Cundinamarca, Magdalena, Meta, Valle del Cauca), Venezuela (Aragua, Trujillo) ( Gillogly, 2005; Jiménez-Ferbans et al., 2018); Bolivia (Cochabamba, Santa Cruz) ( Fig. 3 View Figure 3 ).

Remarks: According to Gillogly (2005) and JiménezFerbans et al. (2018), Popilius gibbosus is restricted to high-altitudes (1,350 -3,000 m) in eastern portion of the Andes of Colombia and Venezuela. The specimens from Bolivia were collected at the slope of the eastern portion of the Cordillera at low altitudes (400 m and 500 m). This makes it possible to expand both the information on the distribution and the altitude at which this species can be found, being able to assist in the collection of this species, which is relatively rare in several collections.

Also, according to Gillogly (l.c.), the absence of specimens from the western Cordillera and the Central Cordillera may be an effect of the lack of collection, as mentioned by Jiménez-Ferbans et al. (2019) referring to Bolivia’s bess beetle fauna. Jiménez-Ferbans et al. (2019) carried out a checklist of Passalidae species from Bolivia, finding two Popilius species: P. marginatus (Percheron, 1835) and P.tetraphyllus (Eschscholtz, 1829) . The authors commented that the number of species of Bolivia is low and reflects the lack of a systematic exploration of this country; more surveys are needed, especially in ecosystems such as montane forest and tropical rain forest, pointing out the need for sampling in the mid-range montane ecosystems of Bolivia ( Jiménez-Ferbans et al., 2019).

Key to Popilius species from Bolivia

INPA	Instituto Nacional de Pesquisas da Amazonia

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Taxonomy

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Coleoptera
Family	Passalidae
Genus	Popilius