Philotarsetae
Guides
Heterocaecilius
Heterocaecilius is a genus of barklice in the family Pseudocaeciliidae, established by Lee and Thornton in 1967. Members of this genus belong to the order Psocodea, a group of small, often overlooked insects commonly found on vegetation and bark. The genus has been recorded from multiple regions including the United States, Japan, and Malaysia.
Philotarsidae
Loving Barklice
Philotarsidae is a family of barklice within the order Psocodea, comprising approximately 150 species across eight recognized genera. The family belongs to the infraorder Philotarsetae and is closely related to Pseudocaeciliidae and Calopsocidae. A revised classification recognizes two subfamilies: Philotarsinae (tribes Philotarsini and Aaroniellini) and Zelandopsocinae. The family has been extensively studied for its systematics, phylogeny, and biogeographic patterns, particularly in relation to plate tectonics and historical fragmentation in the southwest Pacific.