A plain reddish-brown beetle, but that when magnified is quite beautiful, with gold colored hairs on the elytra with tiny black spots. It is about 1 cm in length. When I put 2 of them together, they rushed up to greet each other and stayed that way for several minutes. This beetle fooled me into thinking it was a Cerambycid! Family Oedemeridae.
Garden lights, semi-rural residential area, San Cristobal de Las Casas, Chiapas, Mexico, 2,200 meters. Active at night.
It is under investigation whether this is a species of Sparedus or Calopus.http://www.sil.si.edu/DigitalCollections/bca/navigation/bca_12_04_02/bca_12_04_02.cfm?start=129 https://bugguide.net/node/view/620807 https://www.biodiversidadvirtual.org/ins... https://bugguide.net/node/view/1219760