Psocetae

Abstract: Previous classification of the insect order Psocoptera has relied on morphological characters Psocoptera are generallydivided into three suborders: Trogiomorpha, Troctomorpha, and Psocomorpha Traditional classification divides the Psocomorpha into four infraorders (Homilopsocidea, Caeciliusetae, Psocetae and Epipsocetae), but a recent morphological cladistic studyremoved Archipsocidae from Homilopsocidea and Hemipsocidae from Psocetae We investigated the phylogenetic relationships within the suborder Psocomorpha using DNA sequences from the nuclear 18S and mitochondrial 16S, 12S and cytochrome oxidase I genes Phylogenetic analyses of these gene sequences supported monophyly for Psocomorpha In addition, monophyly of the trad- itional subgroups Caeciliusetae and Psocetae was generallysupported Monophyly of Homilopsocidea was not supported, and Archipsocus is removed from this group Although the molecular phylogeny is generally consistent with recent cladistic studies of morphological characters, we found no evidence that Hemi- psocidae should be removed from Psocetae

Abstract: A catalogue of type specimens of Psocoptera (Insecta: Psocodea) deposited in the collection of the Museu de Zoologia da Universidade de Sao Paulo, Sao Paulo, Brazil, is presented and updated to February, 2019. 45 holotypes and 47 paratypes of 52 species were found, included in the suborders Psocomorpha and Trogiomorpha, and listed in the families Amphipsocidae, Asiopsocidae, Caeciliusidae (infraorder Caeciliusetae); Lachesillidae and Pseudocaeciliidae (infraorder Homilopsocidea); Philotarsidae (infraorder Philotarsetaea) Hemipsocidae, Myopsocidae and Psocidae (infraorder Psocetae); Ptiloneuridae (infraorder Epipsocetae), and Lepidopsocidae (infraorder Atropetae). The taxa are presented alphabetically by suborders, infraorders, families, subfamilies, tribes and genera, followed by species (updated to the valid name), bibliographic citation, type category, description of the type condition with collection number and method of preservation. When necessary, comments are added.