Gigantotrichoderes, Tippmann, 1953

Botero, Juan Pablo, Tirant, Stéphane Le & Santos-Silva, Antonio, 2018, A New Species of GigantotrichoderesTippmann, 1953 (Coleoptera: Cerambycidae: Cerambycinae: Torneutini) from Mexico, The Coleopterists Bulletin 72 (4), pp. 805-809 : 806

KEY TO THE SPECIES OF ADULT GIGANTOTRICHODERES

1. Elytra entirely dark brown. Venezuela (Amazonas) ................. G. brunneus Joly, 2017

1 ʹ. Elytra yellowish brown with or without darker brown areas ........................................ 2

2. Prothorax with lateral tubercles more projected and slightly acute at apex in males, slightly elevated and rounded at apex in females ( Figs. 1–2 ). Mexico, Honduras, Costa Rica, Panama, Colombia (Cundinamarca, Valle del Cauca), Suriname, Guyana, French Guiana, Ecuador, Peru........ G. conicicollis Tippmann, 1953

2 ʹ. Prothorax without lateral tubercles ........... 3

3. Distance between superior ocular lobes greater than width of upper ocular lobe; sides of prothorax converging anteriorly; pronotum covered by dense pubescence (except on surface of tubercles); humeri and elytral apices concolorous with remaining elytral surface ( Figs. 3–7 ). Mexico (Veracruz) .................. .............. G. cummingi Botero, Le Tirant, and Santos-Silva , new species

3 ʹ. Distance between superior ocular lobes smaller than width of upper ocular lobe; sides of prothorax subparallel; pronotum with glabrous or nearly glabrous central area; humeri and elytral apices dark brown ( Fig. 8 ). Nicaragua, Costa Rica, Panama, Colombia (Vichada), Venezuela, Suriname, Guyana, French Guiana, Ecuador, Peru, Bolivia, Brazil (Amazonas, Pará, Maranh~ ao) .................... ................ G. flabellicornis ( Zajciw, 1965)

Figures

Figs. 1–8. Gigantotrichoderes conicicollis: 1) Scape and pedicel; 2) Male, dorsal habitus. Gigantotrichoderes cummingi, holotype male: 3) Dorsal habitus; 4) Ventral habitus; 5) Head, frontal view; 6) Scape and pedicel; 7) Lateral habitus. Gigantotrichoderes flabellicornis: 8) Male, dorsal habitus.