A description of the first instar of Hoperius Planatus fall, 1927 (Coleoptera: Dytiscidae: Colymbetinae: Colymbetini), with phylogenetic implications

Authors
Barman, E. H.; Michat, Mariano Cruz; Alarie, Yves; Wolfe, G. W.
Publication Year
2014
Language
English
Format
article
Status
Published version
Description
The first instar of Hoperius planatus Fall, 1927 is described and illustrated for the first time with an emphasis on the chaetotaxy of the head capsule, head appendages, legs, last abdominal segment, and urogomphi. Hoperius planatus is characterized by the presence of additional campaniform sensilla (pores) on the frontoclypeus, representing a unique character state within the tribe Colymbetini (Colymbetinae). A phylogenetic analysis based on 42 first-instar characters using the program TNT reinforces the hypothesis of monophyletic origin of the Colymbetini and suggests a placement of Hoperius Fall, 1927 as sister to a clade comprised of Neoscutopterus J. Balfour-Browne, 1943, Meladema Laporte, 1835, and Bunites Spangler, 1972. Members of this clade are uniquely characterized within the Colymbetini by the presence of a large number of additional spiniform sensilla on the urogomphus.
Fil: Barman, E. H.. Georgia State University; Estados Unidos
Fil: Michat, Mariano Cruz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina
Fil: Alarie, Yves. Laurentian University. Department Of Biology; Canadá
Fil: Wolfe, G. W.. Georgia State University; Estados Unidos
Subject
PREDACEOUS DIVING BEETLE
HOPERIUS
LARVAE
MORPHOLOGY
CHAETOTAXY
MANDIBULAR GEOMETRY
Zoología, Ornitología, Entomología, Etología
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/19522