Explanation of Names
Megaderus bifasciatus Dupont, 1836
- Greek for 'great neck' (1)
2 spp., one reaches sw US
se AZ, w TX / Mex. to C. Amer. (first US record
reported by LeConte 1852)
I believe it is Megaderus bifasciatus which has been recorded from Texas... BUT probably any records outside of the Big Bend area are based on emergences from imported wood or some other form of transport.
The natural habitat of Megaderus bifasciatus is from Honduras to extreme southern (only montane regions) USA. There are various records for Megaderus in the USA but they make little sense. There is a potentially good record from the Big Bend and a couple good ones from SE Arizona. Nobody that I know has collected this beetle in the US in decades. In fact there are very few records for Mexico. I believe it is a mid to high altitude species and is not attracted to anything, except perhaps FIRE!!!
Megaderus stigma, a close relative, whose range begins in Nicaragua or Honduras and extends to deep in South America is a species that is known to be attracted to fires where the females lay eggs on fresh fire-killed wood.
It's a fantastic specimen, and I hope it can be preserved at TAMU. I have no specimens of it, although I have M. stigma from Nicaragua which was collected by a friend on wood still smoldering. (Dan Heffern, pers. comm. to MAQ, 2015)
(Linnaeus) - Range: C. to S. Amer.
Dupont, H. 1836. Monographie des trachydérides de la famille des Longicornes, Magasin de Zoologie, Paris 6:1-51, pls 141-164.
Haldeman, S.S. 1852. Insects, Pp. 366-378 In
: H. Stansbury, Exploration and survey of the valley of the Great Salt-Lake of Utah. Washington, D.C. 487 pp. (Full Text
LeConte, J.L. 1852. An attempt to classify the longicorn Coleoptera of the part of America north of Mexico. Journal of the Academy of Natural Sciences of Philadelphia, Serial 2, 2: 139-178. (Full Text