Cuyabasa chiquitoensis Bechyné, 1959

Roie, Martijn Van, D’Hont, Anouk, Konstantinov, Alexander & Furth, David, 2023, Types of Cuyabasa Bechyné, Palmaraltica Bechyné and Rhynchasphaera Bechyné (Coleoptera: Chrysomelidae: Galerucinae: Alticini: Oedionychina) of the Naturhistorisches Museum, Basel, with keys to species and descriptions of genitalia, and new combinations for species transferred to the oedionychine, Zootaxa 5318 (1), pp. 67-82 : 70

Cuyabasa chiquitoensis Bechyné, 1959

( Figure 1 )

Cuyabasa chiquitoensis Bechyné 1959:346 ( Bolivien: Chiquitos , holotype male).

Measurements. LB = 3.60 mm; WB = 2.23 mm (N=1)

Distribution. Bolivia.

Type examined. Holotype male: Chiquitos Bolivia, Type Cuyabasa chiquitoensis ns. J. Bechyne det., 1956 ( NMB).

Literature records. Apart from the locality given in the original description, no other published localities exist.

Description of genitalia. Aedeagus ( Figure 1E ), in ventral view, almost blunt; maximum width situated at about distal third, followed by constriction and thereafter widening again apically. In lateral view, nearly straight; maximum width at about distal third. Apical denticle rounded with slight tip in ventral view, slightly curved in lateral view. Ventral surface of aedeagus smooth, with apex slightly wrinkled. Basal opening angulate. Female genitalia not available for study.

Diagnosis. Cuyabasa chiquitoensis can be separated from C. minor by the red or dark red coloration of the head, underside, scutellum and appendages ( Figure 1 ); by the frontal ridge that reaches the antennal sockets ( Figure 1C ); and by the apex of the aedeagus that lacks the lamelliform protrusion ( Figure 1E ). Cuyabasa chiquitoensis can be separated from C. gastrophysoides by the pronotal punctation that is finer than that of elytra ( Figure 1A ); by the smooth (non-rugose) antennal calli ( Figure 1C ); and by the less deeply punctate orbital sulcus ( Figure 1C ). Since only one male of C. chiquitoensis and one female of C. gastrophysoides are known to date, genitalia of these species could not be compared.

Figures

FIGURE 1. Holotype male of Cuyabasa chiquitoensis Bechyné from the NMB. A. Dorsal view; B. Lateral view; C. Frontal view; D. Label; E. Aedeagus. Scale bar: 1 mm.