Tenebrioninae, Latreille, 1802

Nabozhenko, Maxim, 2015, Review of the Genus Cylindrinotus Faldermann, 1837 (Coleoptera: Tenebrionidae: Helopini), The Coleopterists Bulletin (mo 14) 69, pp. 101-114 : 102-103

Subfamily Tenebrioninae Tribe Helopini Subtribe Cylindrinotini Genus Cylindrinotus Faldermann, 1837

Type species: Helops femoratus Faldermann, 1837 (designated by Gebien 1943).

Cylindrinotus Faldermann 1837: 75 . Allard 1876: 4, 1877: 18, 51, 214 ( Cylindronotus ); Seidlitz 1896: 697, 720, 766 ( Cylindronotus ); Reitter 1902: 217 ( Helops subgen.), 1922: 121, 124 ( Cylindronotus ); Nabozhenko 2001: 629 ( Cylindronotus ), 2006b: 143–146; Nabozhenko and Löbl 2008: 241; Abdurakhmanov and Nabozhenko 2011: 46, 136, 301.

Stenomacidius Seidlitz 1896: 791 ( Hedyphanes subgenus).

General Adult Morphology. Body: Robust, rarely slender in males. Head: Widest across eyes. Lateral margin of head without short emargination between gena and frontoclypeus. Fronto-clypeal depression on dorsal surface weak. Temples behind eyes often completely ( Figs. 1, 5, 8 ) or not completely ( Figs. 3, 4, 6, 7 ) constricted near eyes (dorsally), with complete ( Fig. 2 ) or short ( Fig. 4 ) depression along posterior margin of eyes (laterally) and deep furrow in anterior margin (in ventral view). Antennae usually short, not reaching 1/3 length of elytra. Thorax: Pronotum widest after middle ( Fig. 10 ), rarely at middle, only in C. nitidus widest before middle ( Fig. 9 ). Pronotal bead thicker at base of lateral margin than elsewhere. Prothoracic hypomera with longitudinal wrinkles. Hind wings absent. Elytra: With 8 visible striae and 9 interstriae. Dorsal epipleural carina wide, completely visible dorsally. Epipleura and dorsal epipleural carina reaching suture angles of elytra. Sexual dimorphism: Males more slender and often more shiny, almost all with a hair brush on abdominal ventrites 1 and 2, with teeth on inner side of pro-, meso- and sometimes metatibiae ( Figs. 11–20, 22 ), widened pro- and mesotarsi ( Figs. 24–27 ); females more robust, without teeth on tibiae ( Figs. 21, 23 ), tarsi not widened, and often with dull elytra. Male genitalia: Aedeagus strongly sclerotized, apical piece without spines, often with longitudinal depression in middle, parameres dorsoventrally flattened ( Figs. 28–45 ), medial piece with acute apex and almost always with merged median lobe baculi ( Figs. 28, 36–45 ). Gastral spicula strongly bent, S-shaped (laterally) with thick rods ( Figs. 46–51 ) or weakly bent, not

7) C. charlesi, Palandöken Dağları ; 8) C. charlesi, Çat.

S-shaped and with thin rods ( Figs. 52–59 ). Female genital tubes: Spermatheca with or without short basal duct between gland and vagina, with short processes in basal part ( Figs. 60–61 ). Spermathecal gland very long, often 3 times as long as beetle.

Figures

Figs. 1–8. Cylindrinotus species, head. 1, 2) C. gibbicollis; 3, 4) C. erivanus; 5) C. constrictus; 6) C. gibbosus;

Figs. 9–10. Cylindrinotus species, pronotum. 9) C. nitidus, male, lectotype; 10) C. gibbosus, female, holotype.

Figs. 11–27. Cylindrinotus species, legs. 11, 12) C. femoratus, male, metatibia; 13, 14) C. femoratus, male, meso- and protibiae, respectively; 15–17) C. acutangulus, male, meta-, meso-, and protibiae, respectively; 18, 19) C. gibbosus, male, meso- and protibiae, respectively; 20, 21) C. constrictus, protibia, male and female, respectively; 22, 23) C. erivanus, protibia, male and female, respectively; 24, 25) C. constrictus, male, pro- and mesotarsi, respectively; 26, 27) C. charlesi, male, pro- and mesotarsi, respectively.

Figs. 28–45. Cylindrinotus species, aedeagus. 28, 29) C. femoratus; 30, 31) C. acutangulus; 32, 33) C. nitidus; 34, 35) C. batesi; 36, 37) C. gibbicollis; 38, 39) C. erivanus; 40, 41) C. constrictus; 42, 43) C. gibbosus; 44, 45) C. charlesi. Even numbered figures = ventral view; odd numbered figures = lateral view.

Figs. 46–59. Cylindrinotus species, gastral spicula. 46, 47) C. femoratus; 48, 49) C. acutangulus; 50, 51) C. batesi; 52, 53) C. erivanus; 54, 55) C. constrictus; 56, 57) C. gibbosus; 58, 59) C. charlesi. Even numbered figures = ventral view; odd numbered figures = lateral view.

Figs. 60–61. Cylindrinotus species, female genital tubes. 60) C. femoratus; 61) C. gibbicollis. bdg = basal duct of gland; g = gland; s = spermatheca; sm = santimetr (centimeter); V = vagina.