Project NoMBSI
(Non-lethal Method of Benthos Sampling and Identification)
Legend
- Single long appendix on the end of abdomen; pairs of long, segmented tracheal gills: larval Megaloptera, with one genus Sialis, (alderflies) (leftmost)
- Two long cerci on the end of abdomen; lack of tracheal gills on abdomen but they can be present on thoracic segment: larval Plecoptera, (stoneflies) (left)
- Three long cerci on the end of abdomen; tracheal gills or paired pads protecting tracheal gills visible on abdominal segments: larval Ephemeroptera, (mayflies) (center)
- Long bristles on the end of abdomen with pair of parapods, each one with sharp, chitin claw: larval Trichoptera, (caddisflies) (right)
- Three leaf-like tracheal gills on the end of abdomen; chewing mouth-parts transformed into mask: larval Zygoptera, (damselflies) (rightmost)
© PK, kwantyzacja, 2014.