Diversity of nocturnal Cerambycidae (Coleoptera: Chrysomeloidea) from seven localities in Michoacán, Mexico, with description of a new species.

We used a long-time light trap for capturing nocturnal beetles. The specimens collected belong to 24 species, 21 genera, 11 tribes, and three subfamilies of the family Cerambycidae. Of these, Gnaphalodes trachyderoides Thomson, 1861; Tylcus hartwegii (White, 1855); Anelaphus piceus (Chemsak, 1962); Metironeus hesperus Chemsak, 1991; Pseudoperiboeum subarmatum Linsley, 1935; Neocompsa puncticollis asperula (Bates, 1885); Compsibidion vanum (Thomson, 1867); Canidia spinicornis (Bates, 1881); Lepturges (Lepturges) angulatus (LeConte, 1852); Sternidius naeviicornis (Bates, 1885); Oreodera noguerai McCarty, 2001; Eupogonius arizonensis Knull, 1954; Lypsimena fuscata Haldeman, 1847; Arhopalus asperatus (LeConte, 1859); and Arhopalus montanus (LeConte, 1873) represent new state records.

Mexico ants: incidence and abundance along the Nearctic-Neotropical interface.

Mexico is one of the most biodiverse countries in the world, with an important proportion of endemism mainly because of the convergence of the Nearctic and Neotropical biogeographic regions, which generate great diversity and species turnover at different spatial scales. However, most of our knowledge of the Mexican ant biota is limited to a few well-studied taxa, and we lack a comprehensive synthesis of ant biodiversity information. For instance, most of the knowledge available in the literature on Mexican ant fauna refers only to species lists by states, or is focused on only a few regions of the country, which prevents the study of several basic and applied aspects of ants, from diversity and distribution to conservation.