Leptostylus LeConte, 1852

Monné, Miguel A., Santos-Silva, Antonio & Monné, Marcela L., 2020, Key to Mexico and Central America genera of Acanthocinini (Coleoptera Cerambycidae, Lamiinae) without erect setae on elytral surface, excluding the Caribbean Islands, Zootaxa 4861 (3), pp. 301-337 : 318

Leptostylus LeConte, 1852

( Fig. 33 )

Leptostylus LeConte, 1852: 168 .

Type species — Lamia aculifera Say, 1824 (subsequent designation, Thomson, 1864: 28) [= Lamia transversa Gyllenhal, 1817 ].

Diagnosis. Pronotum with protuberances; lateral tubercles of the prothorax median or on posterior third; elytra with setose granules, sometimes throughout. Problematic genus in need of full revision. Number of species currently included: 86; in Mexico and Central America : 51.

Remarks. Leptostylus and Leptostylopsis are very problematic and the separation between then is nearly impossible. The features pointed out to separate them are questionable, especially because Leptostylus includes species with characters extremely variable as, for example, the prothoracic shape, position and shape of the lateral tubercles of the prothorax, which may even be absent, distance between lower eye lobes frontally, etc. These differences suggest that Leptostylus is composed by more than one genus, which only makes more problematic the separation between it and Leptostylopsis . The characteristics pointed out by Dillon (1956a) to separate them thus become very questionable

Figures

FIGURES 28–42. 28–29) Hyperplatys pichinchensis, holotype female (from Nascimento et al. 2020): 28) Dorsal habitus; 29) Ventral habitus. 30) Idephrynus scaber, holotype, dorsal habitus (by Jesus Santiago Moure). 31) Lagocheirus binumeratus Thomson, 1860, female, dorsal habitus. 32) Leptostylopsis longicornis (Fisher, 1926), female, dorsal habitus. 33) Leptostylus x-griseus Bates, 1885, female, dorsal habitus. 34) Lepturges (Lepturges) elegantulus, male, dorsal habitus. 35) Lepturginus obscurellus, holotype, dorsal habitus (by Jesus Santiago Moure). 36–37) Lophopoeum carinatulum, female: 36) Dorsal habitus; 37) Ventral habitus. 38) Mecotetartus antennatus, male, dorsal habitus. 39) Moneilema annulatum, female, dorsal habitus. 40) Nealcidion nebulosum, male, dorsal habitus (from Nascimento et al. 2020). 41) Nyssodrysternum caudatum (Bates, 1864), syntype, dorsal habitus (by Jesus Santiago Moure). 42) Olenosus serrimanus, male, dorsal habitus.