Amplinus bituberculosus Loomis, 1974 accepted as
Seminellogon bituberculosus (Loomis, 1974) (original description)
Chondrodesmus Silvestri, 1897 (additional source)
Cleidogona bifurca Loomis, 1974 (original description)
Cleidogonidae Cook, 1896 (additional source)
Colobodesmus biolleyi Brölemann, 1905 accepted as
Sphaeriodesmus biolleyi (Brölemann, 1905) (additional source)
Colobodesmus crucis Loomis, 1974 accepted as
Sphaeriodesmus 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 Loomis, 1964 (additional source)
Dybasia interamericana Loomis, 1974 (original description)
Hexodontia electa (Chamberlin, 1914) accepted as
Peridontodesmus electus Chamberlin, 1914 (additional source)
Irazunus reimoseri Attems, 1933 (additional source)
Isidrona Attems, 1933 accepted as
Phylactophallus Pocock, 1910 (identification resource)
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)
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 Silvestri, 1897 (additional source)
Trichomorpha esulcata Loomis, 1974 (original description)
Trichomorpha gracilis Loomis, 1974 accepted as
Trichomorpha crucicola Hoffman, 1979 (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
