The larval behaviors probably associated with respiration are reported in different larval instars of Luciola substriata Gorham (Coleoptera: Lampyridae). The behavior involved exposing eighth abdominal segment with spiracles to the atmosphere when swim behavior occurred to 1st–2nd and 3rd–6th instar larvae. In addition, 3rd–6th instar larvae exposed second to seventh abdominal segments with spiracles to air when swimming. Swimming and the behavior that uses the force of body curving travelling in a head-to-tail direction produces a sinusoidal wave. However, probably 1st–2nd instar larvae used both tracheal gills and the exposed posterior spiracle for respiration. Whereas 3rd–6th instar larvae lack tracheal gills, they probably rely only on tracheal respiration. The survival times of 1st–2nd instar larvae were nine times to 3rd–6th instar larvae when the water in the beakers was isolated from atmosphere by a thin plastic membrane. The potential for different selective pressures acting on these early and late instars was discussed.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.