Pseudo trimer a (sudotrimera)

pl. [NL. (West wood, 1839): see pseudo trimerous.] In West wood's system of cla ification, one of the four prime divisions of Coleoptera, including those beetles in which the tarsi are four-jointed, the third joint being very diminutive and concealed between the lobes of the preceding. It is equivalent to the Crypto tetramer a of Bur meister and to the Sub tetramer a and Trimer a of Latreille. It includes the three families Erotylidæ, Endomychidæ, and Coccinellidæ. pseudo trimerous