Tetranodus, Linell, 1896

Heffern, Daniel, Botero, Juan Pablo & Santos-Silva, Antonio, 2020, A new species of Neocompsa (Neoibidionini), and a new species and new combinations in Tillomorphini (Cerambycidae, Cerambycinae), Zootaxa 4748 (2), pp. 334-350 : 340

Key to species of Tetranodus

1. Pronotum reticulate ( Figs. 19 ). Mexico (Chiapas), Guatemala, Honduras, Costa Rica.............. T. reticeps ( Bates, 1880)

- Pronotum longitudinally striate ( Fig. 21 )................................................................... 2

2(1). Elytra behind fasciae closely punctate, scabrous appearing..................................................... 3

- Elytra behind fascia separately punctate, not scabrous........................................................ 4

3(2). Punctures on basal third of elytra linearly arranged. Mexico (Jalisco, Oaxaca).......... T. copei Chemsak & Linsley, 1988

- Punctures on basal third of elytra not linearly arranged. Mexico (Sinaloa), Guatemala, Nicaragua.................................................................................................... T. rugipennis Chemsak, 1969

4(2). Pronotum cylindrical, sides not angulate at middle; elytra with basal punctures dense, not linearly arranged; males with segments three to six of antennae strongly incrassate ( Fig. 21 ). USA (Texas), Mexico (Oaxaca, Veracruz, Tamaulipas, Distrito Federal).......................................................................... T. niveicollis Linell, 1897

- Pronotum with sides somewhat expanded, angulate; elytra with basal punctures linearly arranged, lines separated; males with segments three to six slightly expanded. Honduras, Costa Rica.......................... T. angulicollis Chemsak, 1969

Figures

FIGURES 15–21. 15–19) Tetranodus reticeps, female 1: 15) Dorsal habitus; 16) Ventral habitus; 17) Lateral habitus; 18) Head, frontal view; 19) Pronotal sculpturing. 20) Tetranodus reticeps, female 2, dorsal habitus. 21) Tetranodus mexicanus, holotype female, pronotal sculpturing (currently, junior synonym of Tetranodus niveicollis Linell, 1897).