;Subgenera
Characters;"Antillotrichia Banks, 1941";"Glyphocentron Schmid, 1982";"Rhamphocentron Schmid, 1982";"Sphagocentron Schmid, 1982";"Xiphocentron Brauer, 1870"
"Male hind tibia, modified spur";absent;absent;present;absent;present
"FW fork I";absent;absent;absent;"rudimentarily present (some species)";present
"FW thyridial cell";short;short;medium-sized;long;short
"FW anal veins";3;3;2;3;3
"Sternum IX posterior margin";indented;straight;"with two small lobes";"projecting and with two small lobes";"with one or two prominent lobes (some species)"
"Paraproct lateral points";absent;present;absent;absent;absent
"Preanal app.";"moderately narrow";strong;"robust and wavy";"strong, pointed at apex";"strong, wide and straight"
"Inferior app. articles";"fused, vestigial suture may be visible";"segments well distinct";"fused, vestigial suture may be visible";"fused, no suture visible";"segments well distinct"
"Inferior app. coxopodite, zone of points";absent;present;absent;absent;absent
"Inferior app. harpago, ornaments";"spiny structures weakly developed, mesal sclerite present in some species";"long, narrow, with subbasal zone of strong spines";"long zone of tubercles, mesal sclerite present";"markedly contorted with well-defined area of strong setae";"wide basal zone of dense and long setae"
"Segments II and IV, abdominal vesicles";absent;absent;"present in X. mexico group; absent in X. lavinia group";absent;absent