Trichalphus Bates, 1881

Monné, Miguel A., Santos-Silva, Antonio & Monné, Marcela L., 2020, Key to Mexican and Central American genera of Acanthocinini (Coleoptera Cerambycidae, Lamiinae) with erect setae on elytral surface, excluding the Caribbean Islands, Zootaxa 4885 (1), pp. 1-26 : 21

Trichalphus Bates, 1881

( Fig. 37 )

Trichalphus Bates, 1881: 153 .

Type species — Trichalphus pilosus Bates, 1881 (original designation).

Diagnosis. Antennae densely pilose; prothorax with obtuse tubercle after middle; pronotum tuberculate; elytra with pilose centrobasal crest, surface multicarinate; femora abruptly clavate, with abundant long erect setae; basal metatarsomere shorter than the following two together. Number of species currently included: 1 ( Mexico, Central America ).

Figures

FIGURES 33–47. 33) Pentheochaetes mystica Melzer, 1932, syntype male, Brazil (Rio de Janeiro), dorsal habitus (from Monné et al. 2020). 34) Phrissolaus inspersus Bates, 1881, lectotype, dorsal habitus (by Jesus Santiago Moure). 35) Pseudocobelura prolixa (Bates, 1864), male, dorsal habitus, Brazil (Pará) (from Monné et al. 2020). 36) Tenthras obliteratus Thomson, 1864, female, dorsal habitus, Brazil (Goiás) (from Monné et al. 2020). 37) Trichalphus pilosus Bates, 1881, lectotype, dorsal habitus (by Jesus Santiago Moure). 38) Trichastylopsis albidus (LeConte, 1852), holotype, dorsal habitus (by Jesus Santiago Moure). 39) Trichocanonura linearis (Skinner, 1905), dorsal habitus (from Bezark 2020). 40–42) Trichotithonus curvatus (Bates, 1885), holotype male of Pentheochaetes nitidus Monné & Martins, 1976 (= Trichotithonus curvatus), Brazil (Santa Catarina) (from Monné et al. 2020): 40) Dorsal habitus; 41) Ventral habitus; 42) Lateral habitus. 43) Tuberastyochus tenebrosus (Bates, 1881), holotype female, dorsal habitus (by Jesus Santiago Moure). 44) Valenus inornatus Casey, 1891, holotype, dorsal habitus (from Lingafelter et al. 2020). 45–46) Catharesthes elegans Bates, 1881, holotype (by Jesus Santiago Moure): 45) Dorsal habitus; 46) Elytra, detail of posterior half. 47) Pentheochaetes apicalis Melzer, 1934, holotype, dorsal habitus (by Jesus Santiago Moure).