Bothynus condacki Duarte & Grossi, 2020

Duarte, Paulo R. M. & Grossi, Paschoal C., 2020, Bothynus entellus (LePeletier & Serville) (Coleoptera: Scarabaeidae: Dynastinae) species group: taxonomic revision and description of two new species, Zootaxa 4750 (1), pp. 101-121 : 113-118

Bothynus condacki Duarte & Grossi , new species

( Figs. 6 A–B; 8F; 9F; 12F)

Diagnosis. Bothynus condacki is similar to B. stenelus . However, B. condacki can be distinguished by the following characters: metatrochanter with acute apex ( Fig. 6B ) (apex rounded in B. stenellus ); parameres with rounded lateral flaps, and with a strong apical contraction at inner margin of right paramere ( Fig. 8F ).

Etymology. The specific epithet is a tribute to the collector of the holotype, João Condack, who is an expert on Pteridophyta.

Type material. Holotype male dissected. Brasil: Minas Gerais: Conceição do Ibitipoca , 28.XII.1998, J.P. Condack—( CERPE).

Description. Holotype male ( Fig. 6A ). Body length: 24.0 mm. Body width: 13.mm. Color: Completely dark. Head: Clypeus subpentagonal, densely punctate, glabrous, apex with 2 short teeth. Frontoclypeal suture with 2 small, transverse tubercles. Interocular width equals 3.3 transverse eye diameter; frons with surface coarsely ru- gopunctate, with scarce setae scattered laterally near eyes. Mouthparts: Mandibles tridentate; apical and medial teeth triangular, basal tooth lobed and smaller than previous tooth. Maxilla with quadridentate galea; 2 strong apical teeth, 2 weak basal teeth. Mentum subtriangular, surrounded with setose punctures, discal area slightly convex, glabrous. Pronotum: Strongly convex posteriorly in lateral view; anterior area with a small apical tubercle followed by a, rounded shaped concavity, moderately deep. Discal and lateral areas finely punctate; concavity punctate in 2 areas at sides, anteriorly with dense, C-shaped and coalescent punctures, becoming moderately punctate toward posterior area. Scutellar shield: Subparabolic shaped, smooth, 1.7 times wider than long. Elytra: Surface nearly completely smooth, punctures inconspicuous (only observed under 90X magnification), longitudinal striae barely marked. Legs: Protarsomere V with 1 ventro-basal tooth; protarsomere IV extending ventrally, nearly reaching the apex of the ventro-basal tooth of tarsomere V. Metatrochanter with acute apex ( Fig. 6B ). Abdomen: Ventrite I completely, densely setose, II–VI moderately setose on sides, becoming gradually weak toward disc; discal area glabrous. Tergite VII with stridulatory apparatus formed by a band of innumerous, transverse, finely marked carinae. Tergite VIII nearly smooth, only with transverse, oval shaped punctures, confined to disc. Aedeagus: Parameres in caudal view ( Fig. 8F ), nearly symmetric, middle area with narrow outer margins, apical half with lateral flaps distinctly wider than basal half, apex of the right paramere with a strong contraction at inner margin. In lateral view, apex shortened, downcurved ( Fig. 9F ).

Female. Unknown.

Geographic distribution: Brazil: Minas Gerais ( Fig. 12F ). Bothynus condacki is known only from southeastern Brazil, in a locality dominated by Cerrado and open Rupestrian fields. This is the only species of the B. entellus species group that occurs in a xeric habitat, the other species are found in very wet, forested habitats.

Figures

FIGURE 6. Bothynus condacki. A, Male, dorsal view; B, metatrochanter, ventral view (acute apex, arrow). Scale bar: 2 mm.

FIGURE 8. Parameres in caudal view. A, Bothynus entellus; B, B. stenelus; C, B. tricornis; D, B. lancifer; E, B. araya; F, B. condacki (inner apical contraction, arrow). Scale bars: 2 mm.

FIGURE 9. Aedeagus in lateral view. A, Bothynus entellus; B, B. stenelus; C, B. tricornis; D, B. lancifer (lateroventral contraction, arrow); E, B. araya; F, B. condacki. Scale bars: 2 mm.

FIGURE 12. Distribution map of the Bothynus entellus species group. A, Bothynus entellus; B, B. stenelus; C, B. tricornis; D, B. lancifer; E, B. araya; F, B. condacki.