Canthon bispinus Germar, 1824

González-Vainer, Patricia, 2019, Canthon bispinus Germar (Coleoptera: Scarabaeidae): Descriptions of the Third Instar and Pupa, The Coleopterists Bulletin 73 (1), pp. 233-238 : 237

Canthon bispinus Germar, 1824 pupa

( Figs. 16–17 )

Description. Exarate, oval and stout. Body length 9.5–12.0 mm, maximum width 5.0– 6.5 mm. Color yellowish. Surface glabrous. Head: Antennae, clypeus, mandibles, maxillae, and labium welldiscernible. Clypeus bilobed. Thorax: Pronotum transverse with rounded margins and a short, anterior, median papillate projection ( Fig. 16 ). Meso- and metanota with median projections slightly pronounced ( Fig. 17 ). Abdomen: Dorsal tergal projections in each abdominal segment collectively forming a median ridge extending along abdomen. Segments III–VI with lateral finger-like projections on each side of terga III–VI. Bilobate caudal projection present ( Fig 16 ). Genital ampulla evident ventrally at apex in male ( Fig. 17 ).

Figures

Figs. 12–17. Canthon bispinus. Third instar: 12) Left maxilla, dorsal view; 13) Hypopharynx, dorsal view; 14) Prothoracic leg; 15) Raster. Pupa: 16) Dorsal view; 17) Lateral view.