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Lepicerus larva still unknown: a correction (Coleoptera: Lepiceridae, Phalacridae)
John F Lawrence1, Adam ŚlipiŃski, Rolf G Beutel
1CSIRO Australian National Insect Collection, GPO Box 1700, Canberra, ACT 2101, Australia. 61 Glenbar Road The Palms, QLD 4570 Australia.. Adam.Slipinski@csiro.au.
Zootaxa
|February 22, 2019
Summary
Reexamination of Lepicerus inaequalis larvae suggests previous identification was incorrect due to misinterpretation of mouthpart morphology. New evidence indicates larval mouthparts are protracted, not retracted, challenging prior conclusions.
Area of Science:
- Entomology
- Insect Morphology
- Coleoptera Taxonomy
Background:
- The larva of Lepicerus inaequalis was previously described by Lawrence et al. (2013) based on limited specimens.
- The initial identification relied on habitat association and a combination of larval characters.
Purpose of the Study:
- To re-evaluate the identification of Lepicerus inaequalis larvae.
- To correct misinterpretations in the original larval description.
- To incorporate new evidence regarding larval morphology.
Main Methods:
- Reexamination of larval specimens previously identified as Lepicerus inaequalis.
- Detailed morphological analysis focusing on mouthpart structures.
- Comparison of observed features with known myxophagan immature characteristics.
Main Results:
- A key feature, the retraction of ventral mouthparts, was misinterpreted in the original description.
- Tendons from hypostomal rods were mistakenly identified as maxillary bases.
- Larval mouthparts were confirmed to be protracted, consistent with long hypostomal rods.
Conclusions:
- The previous identification of Lepicerus inaequalis larvae is likely incorrect.
- Reinterpretation of larval morphology necessitates a revision of existing descriptions.
- Further investigation is required to confirm the identity of the studied larvae.
Keywords:
Coleoptera, Lepiceridae, Phalacridae
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