Eukiefferiella gracei (Edwards, 1929)
publication ID |
11755334 |
DOI |
https://doi.org/10.5281/zenodo.5253195 |
persistent identifier |
https://treatment.plazi.org/id/03FED906-FFFA-3879-FF0E-C4A1FD49FE53 |
treatment provided by |
Felipe |
scientific name |
Eukiefferiella gracei |
status |
|
Eukiefferiella gracei View in CoL group
Figs 19A–F
Diagnosis. Head ( Fig. 19A) dark brown, except around the eyespots; body with thoracic segments, pale and abdominal segments purplish-blue; anal tubules and posterior parapods distinctly pale. Labrum as in Fig. 19B, SI seta simple; premandible simple; antenna ( Fig. 19C) 5-segmented, with LO longer than 3 rd segment, AR 1.3–1.4; mandible ( Fig. 19D) with 3 inner teeth, and possibly a proximal 4 th, inner margin with 2–3 long setae-like spines; mentum ( Fig. 19E) with broadly rounded median tooth about 3x the width of 1 st lateral, 5 lateral teeth, basolaterally with angulate shoulders; VM plates narrow with curved outside margin, and basal expansion; setae submenti posteriad of plates; body ( Fig. 19F) setae 0.3–0.5x length of subtending segments; procercus entirely sclerotized; anal tubules constricted basally, about 0.75x the length of posterior parapods.
Notes. The antennal ratios are lower than the range (1.5–1.8), reported for this group ( Bode 1983).
Ecology and habitat. Some larvae of this group occur in moss and in streams with strong currents. Larvae have been found at high elevations (> 3000m) and in streams with mean water temperatures 1–10°C. Some species of this group prefer gravel substrate. Emergence is univoltine occurring in April ( Thienemann 1954).
Sampling sites. Muskoka District.
Nearctic distribution. Canada: Ontario.
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