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| HELENE | October 10th, 2007, 5:37 am | |
| Posts: 1 | I've found some sedge larva (?) in a small stream in Wales, living in small tiny, tiny pebbles, like a tunnel! I do recognize the head and legs and would love to know a little bit more about them! Some also had sticks glued to the pebbles, looking like grasshoppers that's drowned! I shall look forward to hearing from you on my e-mail - helenemills2@yahoo.co.uk - Thanks Helene Mills | |
| Taxon | October 10th, 2007, 8:09 am | |
 Site Editor Royse City, TXPosts: 1350 | Helene- Caddisfly larvae are generally classified as net spinning, free living, or case building. The netspinners build a retreat incorporating a silken net to capture food, similar to a spider web, only underwater. The freeliving build no shelter. The casebuilders build either a portable or fixed case for their protection. A species which builds cases generally constructs them so similarly, that a case can often be identified to genus level simply by virtue of its shape and the materials used in its construction. | |
| Best regards, Roger Rohrbeck www.FlyfishingEntomology.com | ||
| Sayfu | August 9th, 2012, 1:16 pm | |
| Posts: 560 | Does that have to be Rhyacophila because the larva is green. Dave Hughes calls hydropsyche larva, (spotted sedge) green rock worms as well. Or has that been keyed out further? | |
| PaulRoberts | August 9th, 2012, 2:58 pm | |
 Posts: 1776 | Hydro's are quite different looking. They have notable gills along the underside of the abdomen. Many Rhyaco's have that brilliant blue-green coloration. Hydro's are normally duller in color, usually tan to olive, although some can be a fairly bright green. That's the trouble with common names. In this case "green rock worm" is a good description, but unfortunately for many critters. | |
| Sayfu | August 9th, 2012, 4:28 pm | |
| Posts: 560 | Thanks Paul. | |
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