Georthocladius (Georthocladius) fimbriosus Saether et Sublette

Namayandeh, Armin, Bilyj, Bohdan, Beresford, David V., Somers, Keith M. & Dillon, Peter J., 2012, 3324, Zootaxa 3324, pp. 1-65 : 26-27

Georthocladius (Georthocladius) fimbriosus Saether et Sublette

Figs 20A–D

Diagnosis. SI simple serrated; premandible with one apical tooth, no brush; antenna ( Fig. 20A) 5-segmented, 3 rd segment shorter than 4 th, no apparent LO, blade distinctly longer than flagellum, AR 1.6; mandible ( Fig. 20B) with two large inner teeth, apical tooth shorter than combined width of inner two, seta interna with 7 plumose branches; mentum ( Fig. 20C) with single dome-shaped median tooth, 4 laterals, last one may be bifid or notched, lateral margin with sclerotized posterior extension; VP plates distinct originating from outer margin of first lateral tooth and ending at level of seta submenti; posterior end of abdomen as in Fig. 20D; procercus absent, one strong apical seta and 3–4 short weak setae at the base; anal tubules very long tapering about 4–5x as long as posterior parapod (when fully extended).

Notes. The larva fits the species description given by Saether & Sublette (1983), but should be considered tentative until the larvae have been associated for the other three species in the subgenus Georthocladius , particularly Georthocladius (Georthocladius) triquetrus Saether et Sublette which is also an eastern species (North Carolina).

Ecology and habitat. Reported in bogs, seeps and lotic habitats ( Epler 2001).

Sampling sites. Parry Sound District.

Nearctic distribution. First published record for Canada: Ontario . USA: Tennessee, Florida .