Water Quality ID

[PacificGoldenPlover]

Answer (Click to Show Hidden Text)

Cranefly?

I'm not sure, but while collecting bugs for our schools bug project, I got the feeling that damselflies are skinnier and keep their wings upright. Then again I could be completely wrong.

[EastStroudsburg13]

Damselfly adults hold their wings vertically at rest, while dragonflies hold their wings horizontally. Pretty much the main identifying characteristic.

[ptkid]

Answer (Click to Show Hidden Text)

Cranefly?

I'm not sure, but while collecting bugs for our schools bug project, I got the feeling that damselflies are skinnier and keep their wings upright. Then again I could be completely wrong.

Yup

[mintyfrash]

Since nobody has posted for a bit I'll go what is it, where is it invasive to, how did it get there, and why is it problematic?

[personasaurus rex]

Since nobody has posted for a bit I'll go what is it, where is it invasive to, how did it get there, and why is it problematic?

spiny water flea, invasive species in the North American Great Lakes, introduced via untreated ballast water, outcompetes native zooplankton species due to lack of natural predators, harm fish species with their spiny tails.

[mintyfrash]

Since nobody has posted for a bit I'll go what is it, where is it invasive to, how did it get there, and why is it problematic?

spiny water flea, invasive species in the North American Great Lakes, introduced via untreated ballast water, outcompetes native zooplankton species due to lack of natural predators, harm fish species with their spiny tails.

Yep yep yep ^^

[personasaurus rex]

http://www.entomology.umn.edu/midge/VSM ... va.big.jpg
how many eggs does it lay, what time of year, where, and what are its cocoons made out of?

[ptkid]

http://www.entomology.umn.edu/midge/VSM ... va.big.jpg
how many eggs does it lay, what time of year, where, and what are its cocoons made out of?

I think it's a midge. It lays an egg mass. IDK when or what the cocoons made out of (maybe summer and made out of sediment).

[gigaboo]

My guess is Whirligig Beetle Larvae, they have the distinctive head and filament-like projections from the side. Based on my notes, small bunches of seven to forty eggs laid in spring on aquatic vegetation. I don't have what the cocoon is made of in my notes.

[ptkid]

My guess is Whirligig Beetle Larvae, they have the distinctive head and filament-like projections from the side. Based on my notes, small bunches of seven to forty eggs laid in spring on aquatic vegetation. I don't have what the cocoon is made of in my notes.

Now that I think about it I think your right.