Three species of Pityophthorus from Mexico are described: bravoi (Mexico), conscriptus (Morelos), and ostryacolens (Morelos). Additional host or locality data are given for: atomus, corruptus, deletus, diglyphyus, elimatus, exquisitus, furnissi, hylocuroides, molestus, montezumae, nebulosus, nocturnus, and vespertinus. Existing keys are modified to contain all newly described species.
Bright, Donald E.
"New species and new records of North America Pityophthorus (Coleoptera: Scolytidae), Part VII,"
Great Basin Naturalist: Vol. 46
, Article 12.
Available at: http://scholarsarchive.byu.edu/gbn/vol46/iss4/12