A new species of planthopper in the genus Shellenius (Hemiptera: Fulgoroidea: Derbidae) from palms in Costa Rica Author Bahder, Brian W. 0000-0002-1118-4832 University of Florida, Department of Entomology and Nematology - Fort Lauderdale Research and Education Center; 3205 College Ave., Davie, FL 33314 - 7719, USA. & bbahder @ ufl. edu; https: // orcid. org / 0000 - 0002 - 1118 - 4832 bbahder@ufl.edu Author Zumbado Echavarria, Marco A. 0000-0002-2591-7662 Universidad de Costa Rica-Sede San Ramón, Departamento de Ciencias Naturales, de la Iglesia el Tremedal 400 mts al Oeste carretera hacia San Pedro, San Ramón, Alajuela, Costa Rica. & marco. zumbado @ ucr. ac. cr; https: // orcid. org / 0000 - 0002 - 2591 - 7662 marco.zumbado@ucr.ac.cr Author Barrantes Barrantes, Edwin A. 0000-0001-9565-2105 Universidad de Costa Rica-Sede San Ramón, Departamento de Ciencias Naturales, de la Iglesia el Tremedal 400 mts al Oeste carretera hacia San Pedro, San Ramón, Alajuela, Costa Rica. & edwin. barrantes @ ucr. ac. cr; https: // orcid. org / 0000 - 0001 - 9565 - 2105 edwin.barrantes@ucr.ac.cr Author Helmick, Ericka E. 0000-0002-5153-0891 University of Florida, Department of Entomology and Nematology - Fort Lauderdale Research and Education Center; 3205 College Ave., Davie, FL 33314 - 7719, USA. & ehelmick @ ufl. edu; https: // orcid. org / 0000 - 0002 - 5153 - 0891 ehelmick@ufl.edu Author Bartlett, Charles R. 0000-0001-9428-7337 University of Delaware, Department of Entomology and Wildlife Ecology, 250 Townsend Hall, Newark, DE 19716 - 2160, USA. bartlett @ udel. edu; https: // orcid. org / 0000 - 0001 - 9428 - 7337 bartlett@udel.edu text Zootaxa 2023 2023-06-23 5306 5 571 585 http://dx.doi.org/10.11646/zootaxa.5306.5.5 journal article 54588 10.11646/zootaxa.5306.5.5 a84ed560-ae49-48a7-9b2c-73b79faa6e0b 1175-5326 8073271 C284A22F-6963-494C-A561-30C51916FCBE

TABLE 3. Biometric data for Shellenius serratus sp. n. (in mm)

Character	Male (n =1)	Female (n =2)
Body length with wings	10.00	10.26
Body length without wings	5.84	6.01
Forewing length	7.19	7.22
Vertex length	0.79	0.83
Vertex width—basal	0.25	0.25
Vertex width—distal	0.03	0.03
Pronotum length—midline	0.03	0.03
Mesonotum length—midline	0.58	0.59
Mesonotum width	0.43	0.44
Frons length	0.40	0.40
Frons width—dorsal	0.03	0.03
Frons width—frontoclypeal	0.04	0.04
Clypeus length	0.41	0.41