MORPHOLOGY OF LARVAE, DEUTONYMPHS, AND ADULTS OF THE WATER MITENAJADICOLA INGENS(PROSTIGMATA: PARASITENGONA: HYGROBATOIDEA) WITH REMARKS ON PHYLOGENETIC RELATIONSHIPS AND REVISION OF TAXONOMIC PLACEMENT OF NAJADICOLINAE
- 30 May 1984
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 116 (5) , 691-701
- https://doi.org/10.4039/ent116691-5
Abstract
Adults and deutonymphs of Najadicola ingens (Koenike) are redescribed and larvae are described for the first time. In light of larval, deutonymphal and adult character states, the phylogenetic relationship of Najadicola with genera in the families Pionidae and Unionicolidae is re-evaluated and transfer of the subfamily Najadicolinae to Pionidae is proposed. Original life history information is presented to supplement existing literature. Parasitism by larval N. ingens on an adult chironomid of the genus Polypedilum is reported. The unique behavioural and morphological characteristics of members of Najadicola suggest that mussel parasitism evolved independently from a parallel adaptive sequence in the genus Unionicola. Les auteurs présentent une nouvelle description des adultes et des deutonymphes de Najadicola ingens (Koenike) et une première description des larves de cette espèce. À la lumière des caractéristiques des larves, des deutonymphes et des adultes, nous réévaluons les rapports phylogénétiques de Najadicola avec les genres des familles Pionidae et Unionicolidae et suggérons de transférer la sous-famille des Najadicolinae aux Pionidae. Nous donnons des renseignements sur le cycle biologique pour compléter la documentation existante. Nous mentionnons un parasitisme par des larves de N. ingens sur un adulte chironomide du genre Polypedilum. Les caractères comportementaux et morphologiques uniques de Najadicola laissent à penser que le parasitisme des moules s'est développé de façon indépendante de l'évolution adaptive parallèle du genre Unionicola.This publication has 9 references indexed in Scilit:
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