Larval Description and Phylogenetic Placement of the South Africa Endemic Genus Andex (Coleoptera: Adephaga: Dytiscidae)
Open Access
- 1 September 2006
- journal article
- Published by Oxford University Press (OUP) in Annals of the Entomological Society of America
- Vol. 99 (5) , 743-754
- https://doi.org/10.1603/0013-8746(2006)99[743:ldappo]2.0.co;2
Abstract
Larvae of Andex insignis Sharp (Coleoptera: Adephaga: Dytiscidae) are described. A parsimony analysis of selected taxa of Hydroporinae based on 24 informative larval characters was conducted using the program PAUP*. The 20 most parsimonious trees support a placement of Andex Sharp within the tribe Hyphydrini as part of a clade made up of Desmopachria Babington + Hyphydrus Illiger + Prismopes Sharp, which is supported by the presence of dorsal metafemoral and mesofemoral setae. Larvae of Andex evolved three unique character states within the Hyphydrini: the presence of several dorsal secondary setae on the prementum, the presence of three frontoclypeal lateral processes in instar III, and the absence of the primary pore TIa.Keywords
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