Epeorus vitreus
publication ID |
https://doi.org/ 10.5281/zenodo.171850 |
DOI |
https://doi.org/10.5281/zenodo.6258129 |
persistent identifier |
https://treatment.plazi.org/id/039CD513-FE0F-FFCD-7943-F938FAC5FBA6 |
treatment provided by |
Plazi |
scientific name |
Epeorus vitreus |
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Key to known larvae of the eastern north American vitreus View in CoL species group
1. Lamellae of first pair of gills each with large anterior expansion, usually meeting or nearly meeting ventrally ( Fig. 11 View FIGURES 11 – 17. 11 ) [lamellae of gills 1 of E. namatus View in CoL only slightly
expanded anteriorly ( Fig. 12 View FIGURES 11 – 17. 11 )]; subdorsal setae on femora pectinate; maxillae with more than one seta at base of apical tooth complex ( Fig. 14 View FIGURES 11 – 17. 11 ); dorsal projection at apex of femora blunt; lamellae of gills 7 usually with longitudinal fold................................. ................................................................................................ E. pleuralis View in CoL species group Lamellae of first pair of gills cordate, not expanded anteriorly ( Fig. 9 View FIGURES 1 – 10 ); subdorsal setae of femora simple; maxillae with single fimbriate seta at base of apical tooth complex; dorsal projection at apices of femora blunt or sharp; lamellae of gills 7 usually without longitudinal fold .................................................................... E. vitreus View in CoL species group, 2
2. Dorsal (outer) posterolateral projections of abdomen distinctly longer than ventral projections ( Fig. 13 View FIGURES 11 – 17. 11 ) .............................................................................................. E. vitreus View in CoL
Dorsal (outer) posterolateral projections of abdomen subequal to or only slightly longer than ventral posterolateral projections ( Fig. 8 View FIGURES 1 – 10 ) ................................................. 3
3. Abdominal terga each with small but distinct median protuberance on posterior margin, increasing in size posteriorly; head distinctly wider anteriorly ( Fig. 15 View FIGURES 11 – 17. 11 ) and nearly uniform brown; gills 7 with longitudinal fold .................................................. E. dispar View in CoL
Abdominal terga without posterior median protuberances or terga 2 or 3–7 each with small median protuberance, decreasing in size posteriorly; head subrectangular ( Fig. 1 View FIGURES 1 – 10 ), with four large pale markings; gills 7 without longitudinal fold ............................ 4
4. Dorsal projection at apex of hind femur sharply pointed ( Fig. 16 View FIGURES 11 – 17. 11 ); pronotum with small pair of tubercles ( Fig. 17 View FIGURES 11 – 17. 11 ); mature larvae>8.0 mm long ................ E. subpallidus View in CoL
Dorsal projection at apex of hind femur bluntly pointed ( Fig. 7 View FIGURES 1 – 10 ); pronotum without pair of small tubercles; mature larvae 6.0–8.0 mm long ............................. E. punctatus View in CoL
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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