TY - JOUR
T1 - Larval description and chaetotaxic analysis of dineutus sinuosipennis laporte, 1840, with a key for the identification of larvae of the tribe Dineutini (Coleoptera, Gyrinidae)
AU - Michat, Mariano C.
AU - Gustafson, Grey T.
AU - Bergsten, Johannes
N1 - Funding Information:
We thank Helena Shaverdo and Cesar Benetti for their valuable comments to the manuscript. MCM was supported by Agencia Nacional de Promoción Científica y Tecnológica under Grant PICT–2014–0853 and by Universidad de Buenos Aires under Grant UBACyT–20020150100170BA. GTG was supported by a NIH IRACDA postdoctoral fellowship (5K12GM064651). Part of this project was funded by NSF #DEB– 1402446. We thank Niclas Gyllenstrand at the Centre for Genetic Identification (CGI), Swedish Museum of Natural History, Stockholm, Sweden for the molecular lab work.
Funding Information:
We thank Helena Shaverdo and Cesar Benetti for their valuable comments to the manuscript. MCM was supported by Agencia Nacional de Promoción Científica y Tecnológica under Grant PICT-2014-0853 and by Universidad de Buenos Aires under Grant UBACyT-20020150100170BA. GTG was supported by a NIH IRACDA postdoctoral fellowship (5K12GM064651). Part of this project was funded by NSF #DEB-1402446. We thank Niclas Gyllenstrand at the Centre for Genetic Identification (CGI), Swedish Museum of Natural History, Stockholm, Sweden for the molecular lab work.
Publisher Copyright:
© Mariano C. Michat et al.
PY - 2017
Y1 - 2017
N2 - The larvae of the Malagasy whirligig beetle Dineutus sinuosipennis Laporte, 1840, identified using DNA sequence data, are described and illustrated for the first time, including detailed morphometric and chaetotaxic analyses of selected structures and a description of larval habitat. Larvae of the genus Dineutus Macleay, 1825 are diagnosed, and a key to identify the genera of the tribe Dineutini is presented. Larvae of Dineutus exhibit the characters traditionally recognized as autapomorphies of the Gyrinidae: body less sclerotized, egg bursters located on the parietal, one additional sensorial plate on the third antennomere, cardo and lacinia well developed, prementum completely divided, abdominal tracheal gills, and four terminal hooks on the pygopod. They also share with larvae of the other Dineutini genera these putative synapomorphies: numerous minute pore-like additional structures on the ultimate maxillary and labial palpomeres, coxal primary seta CO12 inserted submedially, and trochanteral primary seta TR2 absent. Larvae of Dineutus can be distinguished from those of other known genera of Dineutini by the posterior margin of the lacinia not dentate, tracheal gills plumose, parietal seta PA5 inserted relatively far from setae PA7–9, mandibular pores MNb and MNc inserted relatively far from each other, and tarsal seta TA1 inserted submedially.
AB - The larvae of the Malagasy whirligig beetle Dineutus sinuosipennis Laporte, 1840, identified using DNA sequence data, are described and illustrated for the first time, including detailed morphometric and chaetotaxic analyses of selected structures and a description of larval habitat. Larvae of the genus Dineutus Macleay, 1825 are diagnosed, and a key to identify the genera of the tribe Dineutini is presented. Larvae of Dineutus exhibit the characters traditionally recognized as autapomorphies of the Gyrinidae: body less sclerotized, egg bursters located on the parietal, one additional sensorial plate on the third antennomere, cardo and lacinia well developed, prementum completely divided, abdominal tracheal gills, and four terminal hooks on the pygopod. They also share with larvae of the other Dineutini genera these putative synapomorphies: numerous minute pore-like additional structures on the ultimate maxillary and labial palpomeres, coxal primary seta CO12 inserted submedially, and trochanteral primary seta TR2 absent. Larvae of Dineutus can be distinguished from those of other known genera of Dineutini by the posterior margin of the lacinia not dentate, tracheal gills plumose, parietal seta PA5 inserted relatively far from setae PA7–9, mandibular pores MNb and MNc inserted relatively far from each other, and tarsal seta TA1 inserted submedially.
KW - Adephaga
KW - DNA-based association
KW - Larva
KW - Sensilla
KW - Whirligig beetles
UR - http://www.scopus.com/inward/record.url?scp=85037059338&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85037059338&partnerID=8YFLogxK
U2 - 10.3897/zookeys.718.20726
DO - 10.3897/zookeys.718.20726
M3 - Article
AN - SCOPUS:85037059338
SN - 1313-2989
VL - 2017
SP - 95
EP - 114
JO - ZooKeys
JF - ZooKeys
IS - 718
ER -