-84.166664, 10.266666: 17 Treatments

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Myrmelachista flavocotea   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54: 17-19 17-19
Myrmelachista nigrocotea   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54: 40-42 40-42
Venanus randallgarciai   sp. n.  Fernandez-Triana, Jose L, Whitfield, James B, Smith, M. Alex, Hallwachs, Winnie & Janzen, Daniel H., 2014, First record of the genus Venanus (Hymenoptera: Braconidae: Microgastrinae) in Mesoamerica, with the description of two new species from Costa Rica, Biodiversity Data Journal 2, pp. 4167-4167: 4167 4167
Netomocera virgata   sp. nov.  Mitroiu, Mircea-Dan, 2019, Revision of Netomocera Bouček (Hymenoptera: Chalcidoidea: Pteromalidae), excluding the Oriental species, European Journal of Taxonomy 568, pp. 1-87: 81-85 81-85
Argia elongata   n. sp.  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: 14-21 14-21
Amphicnaeia rileyi   new species  Wappes, James E., Santos-Silva, Antonio & Galileo, Maria Helena M., 2019, Synonymies, a new combination, and four new species in Amphicnaeia Bates (Coleoptera: Cerambycidae: Lamiinae), Insecta Mundi 703 (703), pp. 1-18: 7-8 7-8
Azteca instabilis     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63: 35-37 35-37
Hygronemobius elegans   n. comb.  Desutter-Grandcolas, Laure & Hugel, Sylvain, 2016, First occurrence of Nemobiinae crickets in the Lesser Antilles (Orthoptera, Grylloidea, Trigonidiidae), with the descriptions of three new species, Zootaxa 4168 (2), pp. 313-326: 323 323
Myrmelachista haberi   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54: 23-25 23-25
Myrmelachista joycei   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54: 25-28 25-28
Myrmelachista longiceps   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54: 33-36 33-36
Myrmelachista plebecula     Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54: 43-46 43-46
Myrmelachista zeledoni     Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54: 46-48 46-48
Lachnomyrmex laticeps   new species  Feitosa, R. M. & Brandão, C. R. F., 2008, A taxonomic revision of the Neotropical myrmicine ant genus Lachnomyrmex Wheeler (Hymenoptera: Formicidae), Zootaxa 1890, pp. 1-49: 19-21 19-21
Laneella purpurea   sp. nov.  Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146: 42-43 42-43
Mesembrinella spicata     Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146: 55-56 55-56
Mesembrinella zurquiensis   sp. nov.  Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146: 108-109 108-109