The External Morphology of the Head and Mouthparts of Some Philippine Orthoptera Posted on March 31, 2021April 17, 2024 By admin View PDF Victor P. Gapud Archive Article 4, Volume 1, Issue 1 Published: 07 Feb 1968 Volume 1, Issue 1, Subject, Morphology Tags:hypognathous head, prognathous head, phylogenetic significance, Tettigonidae