New Zealand Journal of Zoology abstracts
Larval stages of Podaena latipalpis from New Zealand and phylogenetic relationships of the subfamily Orchymontiinae based on larval characters (Insecta: Coleoptera: Hydraenidae)
Juan A. Delgado
Departamento de Zoología y Antropología Física
Facultad de Biología
Universidad de Murcia
30100 Murcia, Spain
Ricardo L. Palma
Museum of New Zealand Te Papa Tongarewa
P.O. Box 467
Wellington, New Zealand
Abstract The three larval stages of Podaena latipalpis Ordish, 1984 are fully described and illustrated, including a detailed account of chaetotaxy and porotaxy. Morphological characters to distinguish the three larval stages of P. latipalpis from each other and from other known hydraenid larvae are given, as well as a key to identify the three larval stages. A hypothesis of phylogenetic relationships, based on larval characters, between P. latipalpis (subfamily Orchymontiinae) and members of two other hydraenid subfamilies with described larvae (Hydraeninae and Ochthebiinae) is presented. Twenty-two larval characters were used for the cladistic analysis; character polarity was based on outgroup comparison using the coleopteran families Ptiliidae, Leiodidae, and Staphylinidae (subfamily Aleocharinae) as outgroups. This analysis supports a close phylogenetic relationship between P. latipalpis and members of the subfamily Hydraeninae.
Keywords Coleoptera; Hydraenidae; Orchymontiinae; Podaena latipalpis; larvae; chaetotaxy; phylogeny; New Zealand
Z04002;
Received 27 January 2004; accepted 7 August 2004; Online publication date 24 November 2004
New Zealand Journal of Zoology, 2004, Vol. 31: 327–342 0301–4223/04/3104–0327 © The Royal Society of New Zealand 2004
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