Podochlus Brundin

Description

Introduction

Up to 6 mm long, pale to dark head capsule with mentum, mandible and occipital margin darker. Head parallel-sided.

Antenna

Antenna well developed, as long as mandible, with 5 segments, with annulated segment 3. Ring organ situated in the lower 1/2 of basal segment.

Labrum

Labrum with SI, SII and SIVA large on pedestals, SIII without pedestal. Pecten epipharyngis with 3 lobes.

Mandible

Mandible with 5-6 teeth on inner margin, single outer tooth.

Mentum

Mentum with 2 median teeth protruding and shorter first laterals, then 5-6 pairs of lateral teeth, evenly decreasing in size.

Body

Body with slender non-setose abdomen, scarcely constricted between segments. Parapods separate. Curious (unique) ‘comb’ of spines located posterolateral of each procercus. Procerci dark all over, much longer than wide, with strong procercal seta and 7 stout apical setae.

Notes

Taxonomic Notes

Podochlus larvae can be distinguished from other Podonomines by the conspicuous comb of spines on the posterolateral border of abdominal segment 8.

Ecological Notes

Podochlus larvae occur in cool to cold montane (including glacial-fed) streams in Patagonia, southeast Australia, and New Zealand.

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