-83.76667, 9.294445: 10 Treatments

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Clusia osaensis   sp. nov.  Luján, Manuel, Wodcke, Emma & Hammel, Barry, 2024, Two new species of Clusia (Clusiaceae) endemic to Costa Rica, Kew Bulletin 79 (4), pp. 881-887 : 885-886 885-886
Miconia reitziana   comb. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 117-122 117-122
Eubria mesoamericana   sp. nov.  Barr, Cheryl B. & Shepard, William D., 2017, Eubria mesoamericana Barr and Shepard (Coleoptera: Psephenidae: Eubriinae), a New Psephenid Species from Central America with an Enigmatic Generic Distribution, The Coleopterists Bulletin 71 (3), pp. 437-444 : 438-443 438-443
Miconia radicans     Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 114-117 114-117
Anolis riparius   sp. nov.  Chaves, Gerardo, Ryan, Mason J., Bolaños, Federico, Márquez, Cruz, Köhler, Gunther & Poe, Steven, 2023, Two new species of semiaquatic Anolis (Squamata: Dactyloidae) from Costa Rica, Zootaxa 5319 (2), pp. 249-262 : 257-259 257-259
Psychoda laticaula     Cordeiro, Danilo Pacheco, 2020, First record to Brazil of one genera and seven species of Psychodidae (Diptera) with further new records for 10 countries on the Neotropics, Papéis Avulsos de Zoologia 60, pp. 1-10 : 6-7 6-7
Gigantea chiriquii     Boll, Piter Kehoma & Luna, Manuel De, 2025, Diversity of land planarians (Platyhelminthes: Tricladida: Geoplanidae) in Central America: annotated checklist with new records of native and introduced species from citizen science, Zootaxa 5695 (1), pp. 1-70 : 17 17
Dolichoplana striata     Boll, Piter Kehoma & Luna, Manuel De, 2025, Diversity of land planarians (Platyhelminthes: Tricladida: Geoplanidae) in Central America: annotated checklist with new records of native and introduced species from citizen science, Zootaxa 5695 (1), pp. 1-70 : 52-53 52-53
Argia carolus   sp. nov.  Garrison, Rosser W. & Ellenrieder, Natalia Von, 2017, New species of the damselfly genus Argia from Mexico, Central America and Ecuador with an emphasis on Costa Rica (Insecta: Odonata: Coenagrionidae), Zootaxa 4235 (1), pp. 1-93 : 12-14 12-14
Specklinia acrisepala     Karremans, Adam, Salguero, Grettel, Bogarín, Diego, Oses, Lizbeth & Cedeño-Fonseca, Marco, 2020, Illustrations and studies in Neotropical Orchidaceae: the Specklinia brighamii group (Pleurothallidinae) in Costa Rica, Phytotaxa 447 (1), pp. 16-30 : 17-19 17-19