Pachybrachis morosus Haldeman, 1849

Barney, Robert J., 2019, Key to All Sixty-Four Species of Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae) in the Eastern USA, The Coleopterists Bulletin 73 (1), pp. 85-96 : 93-94

36. Pachybrachis morosus Haldeman, 1849 (Type

in MCZ).

Synonymy. Pachybrachis pubescens Olivier 1808 (Type unknown).

Remarks. Fall’ s (1915) Group A consisted of 14 species with the “upper surface distinctly pubescent,” with P. morosus being the only species

found in the eastern USA. However, Fall stated that he was not sure of the distinction between P. morosus and Pachybrachis haematodes Suffrian. Pachybrachis morosus is known to be associated with southern red oak, Quercus falcata Michx. , and blackjack oak, Quercus marilandica Munchh. (Fagaceae) .