-52.45, -21.8: 12 Treatments

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Hydrochus kellymilleri     Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93 : 45-46 45-46
Hydrochus leei     Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93 : 46 46
Hydrochus triangularis   sp. nov.  Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93 : 36-37 36-37
Ambonoides caraguata   sp. nov.  Opitz, Weston, 2015, Systematics of the checkered beetle subfamily Platynopterinae SPINOLA (Coleoptera Cleridae), Linzer biologische Beiträge 47 (2), pp. 1513-1572 : 1524 1524
Hydrochus canalis   sp. nov.  Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93 : 19 19
Tarandocerus lycoides     Opitz, Weston, 2015, Systematics of the checkered beetle subfamily Platynopterinae SPINOLA (Coleoptera Cleridae), Linzer biologische Beiträge 47 (2), pp. 1513-1572 : 1549-1550 1549-1550
Hydrochus coeneni     Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93 : 42 42
Hydrochus shorti     Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93 : 51 51
Hydrochus rectus   sp. nov.  Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93 : 33-34 33-34
Spalangia plaumanni   sp. nov.  Gibson, Gary A. P., 2009, 2259, Zootaxa 2259, pp. 1-159 : 134-137 134-137
Tillomorphini     Monné, Miguel A., Santos-Silva, Antonio, Casari, Sônia A. & Monné, Marcela L., 2017, Checklist of Cerambycidae, Disteniidae and Vesperidae (Coleoptera) primary types of the Museu de Zoologia, Universidade de São Paulo, São Paulo, Brazil, Zootaxa 4249 (1), pp. 1-104 : 36 36
Hydrochus alternatus     Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93 : 40 40