-83.73333, 9.55: 10 Treatments

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Dalek minerva   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 650-652 650-652
Symplocos serrulata     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Phyllocnistis tropaeolicola   sp. nov.  Kawahara, Akito Y., Nishida, Kenji & Davis, Donald R., 2009, Systematics, host plants, and life histories of three new Phyllocnistis species from the central highlands of Costa Rica (Lepidoptera, Gracillariidae, Phyllocnistinae), ZooKeys 27 (27), pp. 7-30 : 20-28 20-28
Megalographa talamanca   sp. nov.  Lafontaine, J. Donald & Sullivan, J. Bolling, 2009, A review of the genus Megalographa Lafontaine and Poole (Lepidoptera: Noctuidae: Plusiinae) with the description of a new species from Costa Rica, Insecta Mundi 2009 (77), pp. 1-10 : 7-9 7-9
Psychoda setigera     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 : 8 8
Psychoda varablanca     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 : 9 9
Coniceromyia truncata     Ament, Danilo César & Amorim, Dalton De Souza, 2016, Taxonomic revision of Coniceromyia Borgmeier (Diptera: Phoridae), with the description of three new species from Brazil, Zootaxa 4086 (1), pp. 1-87 : 58 58
Closterocerus amaurus   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 19 19
Trechnites merops     Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 569-570 569-570
Mexiconnus triops   sp. nov.  Jałoszyński, Paweł, 2022, The first record of Mexiconnus Jałoszyński in Costa Rica with description of a new species (Coleoptera, Staphylinidae, Scydmaeninae), Zootaxa 5213 (5), pp. 591-595 : 592-594 592-594