Description of a new subspecies of Dendroctonus pseudotsugae from Mexico
A new subspecies of Dendroctonus pseudotsugae (EPPO A1 quarantine pest) has been described from Mexico, and called Dendroctonus pseudotsugae barragani. It differs from D. pseudotsugae by 10 anatomical features, in the manner in which groups of eggs are laid, and in the species of entomophagous and scolytid insects which are associated with it. Insects were collected from the Sierra Madre Occidental Mountains in Chihuahua, on Pseudotsuga menziesii var. glauca.
Sources
Furniss, M.M. (2001) A new subspecies of Dendroctonus (Coleoptera: Scolytidae) from Mexico. Annals of the Entomological Society of America, 94(1), 21-25.