Amplinus bituberculosus Loomis, 1974 accepted as
Seminellogon bituberculosus (Loomis, 1974) (original description)
Cleidogona bifurca Loomis, 1974 (original description)
Colobodesmus biolleyi Brölemann, 1905 (additional source)
Colobodesmus crucis Loomis, 1974 (original description)
Cylindrogonus tumidus Loomis, 1974 (original description)
Cyrtodesmus depressus Loomis, 1974 (original description)
Cyrtodesmus humerosus Loomis, 1974 (original description)
Cyrtodesmus lobatus Loomis, 1974 (original description)
Desmethus chiriquensis Loomis, 1964 (new combination reference)
Dybasia interamericana Loomis, 1974 (original description)
Irazunus reimoseri Attems, 1933 (additional source)
Nyssodesmus luteolus Loomis, 1974 (original description)
Nyssodesmus vialis Loomis, 1974 (original description)
Orthoporus conifer (Attems, 1950) (additional source)
Orthoporus nodosus Loomis, 1974 (original description)
Orthoporus vialis Loomis, 1974 (original description)
Peridontodesmus electus Chamberlin, 1914 (new combination reference)
Peridontodesmus electus Chamberlin, 1914 accepted as
Trachyphloeus electus (Chamberlin, 1914) (new combination reference)
Platyrhacus propinquus Carl, 1902 accepted as
Barydesmus propinquus (Carl, 1902) (new combination reference)
Sphaeriodesmus filamentosus Loomis, 1974 (original description)
Talamancia Loomis, 1974 (original description)
Talamancia alba Loomis, 1974 (original description)
Trichomorpha esulcata Loomis, 1974 (original description)
Trichomorpha gracilis Loomis, 1974 (original description)
Costa Rica for
Amplinus bituberculosus Loomis, 1974
Costa Rica for
Cleidogona bifurca Loomis, 1974
Costa Rica for
Colobodesmus crucis Loomis, 1974
Costa Rica for
Cylindrogonus tumidus Loomis, 1974
Costa Rica for
Cyrtodesmus depressus Loomis, 1974
Costa Rica for
Cyrtodesmus humerosus Loomis, 1974
Costa Rica for
Cyrtodesmus lobatus Loomis, 1974
Costa Rica for
Dybasia interamericana Loomis, 1974
Costa Rica for
Nyssodesmus luteolus Loomis, 1974
Costa Rica for
Nyssodesmus vialis Loomis, 1974
Costa Rica for
Orthoporus nodosus Loomis, 1974
Costa Rica for
Orthoporus vialis Loomis, 1974
Costa Rica for
Sphaeriodesmus filamentosus Loomis, 1974
Costa Rica for
Talamancia alba Loomis, 1974
Costa Rica for
Trichomorpha crucicola Hoffman, 1979
Costa Rica for
Trichomorpha esulcata Loomis, 1974
Costa Rica for
Trichomorpha gracilis Loomis, 1974
