These three Atylostagma come from Mexico (left Oaxaca, right Jalisco). 20mm. Two species are reported for this genus: polita and glabra. How can I identify them? Could it be possible that the beetles on this photo belong to both of them?
The difference is small but very easy to be detected. Atylostagma glabrum (Atylostagma has gender neuter) has spines at both sides of the antennal joints, while politum has spines only at the inner side. Here the original description of the former species.
Mexico, Atylostagma: politum
Posted - 09/01/2011 : 21:11:55
