Two New Species of Vitronura (Collembola: Neanuridae) from Shanghai, Eastern China, with Dna Barcodes

Authors

  • Yan Gao
  • Yun Bu
  • José G. Palacios-Vargas

Abstract

Vitronura setaebarbulata sp. nov. and V. quartadecima sp. nov. are described from Shanghai, China. V. setaebarbulata sp. nov. is characterized by its heavy barbulate macrosetae, very granulated tubercles, dorsointernal tubercles on head coalescent and very close each other, mandible with three big teeth, apical one with denticules and maxilla with one of the 2 lamellae trifurcated. V. quartadecima sp. nov. is characterized by having 14 tubercles on head, well isolated each other, smooth body setae and mandible with three big teeth, apical one with denticules. The COI barcode sequences were sequenced for four individuals of V. setaebarbulata sp. nov. and twelve individuals of V. quartadecima sp. nov. respectively. No genetic divergence between individuals of same species was found, and the divergence of nucleotides between the two new species is 18.54%. An updated key to world species of Vitronura is also provided.

Resumen: Se describen e ilustran Vitronura setaebarbulata sp. nov. y V. quartadecima sp. nov. de Shanghai, China. V. setaebarbulata sp. nov. se caractiza por tener gruesas macrosedas barbuladas, tubérculos muy granulados, los tubérculos cefálicos dorsointernos coalescentes, muy cerca uno del otro, mandíbula con tres grandes dientes, el apical con dentículos y maxila con una de ambas lamelas trifurcadas. V. quartadecima sp. nov. se caracteriza por tener 14 tubérculos cefálicos, todos separados entre ellos, sedas lisas y mandíbulas con tres grandes dientes, el apical con dentículos. Se realizó la secuenciación del código de barras COI de 4 y 12 individuos respectivamente para estas especies. No se encontró divergencia genética entre los individuos de la misma especie, y la divergencia de nucleótidos entre las dos nuevas especies fue de 18.54%. Adicionalmente se proporciona una clave para las especies del mundo de Vitronura.

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Published

2012-12-01

Issue

Vol. 95, No. 4 (December 2012)

Section

Research Papers

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