Abstract
Fragmentation of the genera Boliviela DeLong and Paralidia Nielson is proposed after several new species assigned to them appeared to alter their original generic concepts. Follow up studies of the taxonomic relationship of these and other closely related genera in a genus group {Boliviela, Dicodia Nielson, Gracilidia Nielson, Tinocripus Nielson and Paralidia) supported recognition of four new genera: Collasuyusana, type-species, Boliviela retrorsa Nielson; Ventrolidia, type-species, Boliviela orthaNielson; Carinoscapula, type-species, Boliviela bispinata Nielson; and Armaturolidia, type-species, Paralidia denticulata Nielson. Five species are removed from Boliviela and designated new combinations: Ventrolidia ortha (DeLong), Ventrolidia paraortha(Nielson), Carinoscapula sarcula (Nielson), Carinoscapula bispinosa (Nielson) and Collasuyusana retrorsa (Nielson). Two species are removed from Paralidia and designated new combinations: Armaturolidia spinata (Nielson) and Armaturolidia denticulata (Nielson). Godoyana Nielson, type-species Godoy-ana laselvensis Nielson is suppressed as a junior synonym of Coelidia German This species is assigned to Coelidia and designated new combination: Coelidia laselvensis (Nielson). A key to 9 genera in the genus group is also presented. A data matrix table of diagnostic generic characters is given for the Boliviela genus group. Thirty-nine new species are described and illustrated with a revised key to species in the following genera: Armaturolidia ordocrista, sp. nov.; Boliviela cucurbita, sp. nov.; B. caverna, sp. nov.; B. biungulata, sp. nov.; Coelidia costaricensis, sp. nov.; C. angulata, sp. nov.; Collasuyusanapicea, sp. nov.; C. diversa, sp. nov.; C. collaris, sp. nov.; C. spenceri, sp. nov.; C. recurvata,sp. nov.; C. bifurcata, sp. nov.; C. lanceolata, sp. nov.; Dialodia bispinata, sp. nov., D. longilobata, sp. nov., D. brevilobata, sp. nov., D. aviculobata, sp. nov.; D. brevisetacea, sp. nov.; D. bilongata, sp. nov.; Dicodia recurvata, sp. nov.; Evansolidia set-acea, sp. nov.; E. inca, sp. nov.; E. unilamina, sp. nov.; E. episetacea, sp. nov.; E. recurvata, sp. nov.; E. gracilitas, sp. nov.; E. lyrata, sp. nov.; E. inflata, sp. nov.; E. fletcheri, sp. nov.; Gracilidia minuta, sp. nov.; G. longiuscula,sp. nov.; G. biflangata, sp. nov.; G. tubercula, sp. nov.; G. uniflangata, sp. nov.; G membrana, sp. nov.; Omanolidia inflata, sp. nov.; Spinolidia moweri, sp. nov.; Tinocripus angustus, sp. nov. and T. sinuatus, sp. nov. Taxonomic review and new distribution records are also given.
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