Numbers
Nearctica.com lists one North American species.
Identification
Eleven fimbriate antennomeres (antenna segments). Similar to
Derobrachus, but can be differentiated as follows;
Antennomere 3 distinctly longer than 1 and 2 combined,
about as long as 4 and 5 together (left) .........
Derobrachus
Antennomere 3 equal in length to 1 and 2,
shorter than 4 and 5 (right) .............................
Orthosoma
(Note: Antennomere (Antenna segment) 2 is greatly reduced in both)
Print References
1996. Chemsak, A.J. Illustrated Revision of the Cerambycidae of North America. Vol. I, Subfamilies Parandrinae, Spondylidinae, Aseminae, Prioninae. Wolfsgarden Press, Burbank, ix+150pp., 10 pls.
Contributed by
Cotinis on 19 July, 2004 - 4:09pm
Additional contributions by
Phillip HarpootlianLast updated 18 February, 2008 - 8:34pm