Numerous macroinvertebrate taxa have been observed in Roaring Brook upstream of the Hollister Reservoir, including 16 genera from the orders Ephemeroptera, Plecoptera, and Trichoptera.
22.
The most primitive order of flying insects, the mayflies ( Ephemeroptera ), are also those who are most morphologically and physiologically similar to these wingless insects.
23.
On Twomile Run above the acid mine drainage, a total of 19 macroinvertebrate taxa including 5 members of the orders Ephemeroptera and Plecoptera were observed in 1998.
24.
Most female insects have an egg-laying tube, or ovipositor; it is absent in termites, parasitic lice, many Plecoptera, and most Ephemeroptera.
25.
"T . balios " feeds on larvae of Diptera ( Chironomidae, Simuliidae ), Lepidoptera, and Trichoptera and nymphs of Ephemeroptera and Plecoptera.
26.
Other smaller numbers of aquatic insects have a closed tracheal system, for example, Odonata, Tricoptera, Ephemeroptera, which have tracheal gills and no functional spiracles.
27.
"T . poikilos " feeeds on aquatic larvae of Diptera ( " Simuliidae " ) and Lepidoptera and nymphs of the Ephemeroptera and Plecoptera.
28.
Chironomidae larvae account for 70 % of the diet of this darter; Ephemeroptera nymphs account for another 19 %, as measured by examining the fish's stomach contents.
29.
An annulated caudal filament, the median appendix dorsalis, arises from the tip of the epiproct in apterygotes, most mayflies ( Ephemeroptera ), and a few fossil insects.
30.
Twenty percent of the macroinvertebrate taxa inhabiting Spring Run are of the orders " Ephemeroptera ", " Plecoptera ", and " Trichoptera ".
