Top Tweets for #StoneflySaturday
A further (21 March 2026) female #Brachypters putata with severely #crumpledwing this time by Spey at ACM & antennae complete.
#StoneflySaturday #plecoptera #ACMinsect #RiparianZone #fencepostfind
#StoneflySaturday Only one nemourid found (with some Brachyptera yesterday 8 Feb) on a fencepost near the River Spey @boatofgarten.
This the only one of 3 seen this month, all near the Spey, to have deformed/damaged antennae
Male stoneflies looking a good fit with Brachyptera putata after dark on various trees yesterday (8 March) near the River Spey (trees :willow, alder -including dead alder- & photos below Ash) #StoneflySaturday #RiparianZone
Includes comment "Freshwater invertebrates underpin the aquatic food ecosystems"
- aquatic #insects listed include riverflies.
Sadly the left feeler of this #StoneflySaturday #NFB #Brachyptera putata female, by the Spey, 24 Feb 2024 was broken /?deformed.
Citizen scientists prove River Avon has been ‘poisoned’.
The health of our watercourses is a direct reflection of the health of our landscapes. To fix the water, you must fix everything.
So public concern over polluted watercourses is a very good thing.
https://t.co/xkKLlLhPbi
This foliate orbweb on a bridge over the #Spey @boatofgarten last night (14 April 2023) looks like a Bridge Orbweb #Spider Larinioides sclopetarius (? female) is this spider's #insect prey identifiable as a small #stonefly? & if so any likely suspect? #StoneflySaturday
Second species for #StoneflySaturday is Xanthoperla apicalis. Distinctive black tips to the antennae and body markings. Critically Endangered in Czech Republic, Carpathian Mountains, and Croatia, Extinct in Switzerland and Great Britain, and Near Threatened in Sweden and Poland.
The first of two species for #StoneflySaturday. This is Isoperla obscura, Critically Endangered in the Czech Republic and Carpathian Mountains, Endangered in Switzerland, and Extinct in Great Britain.
I know it’s no longer #StoneflySaturday but I’ve been taking a look at some Protonemura spp. Here is a nymph of P. montana. The diagnostic features are the pale tarsi and abdominal segments 1 to 6 completely divided in to tergum and sternum
For #StoneflySaturday here’s a video from @RU_Entomology all about these amazing insects!https://t.co/y31asrRtqp
Nearly missed #StoneflySaturday - museum collections are incredibly important sources of information. These specimens of the endemic Northern February Red stonefly (Brachyptera putata) are from the @NatSciNMS collection.
A world first for #stoneflysaturday! Video footage of the nymph of the Northern February red stonefly (Brachyptera putata). An endemic species found in Scottish rivers and nowhere else in the world!
A bit early for #stoneflysaturday but these are the eggs of the endemic #stonefly Perlodes mortoni. Characteristics of the eggs are the only way to reliably separate P. mortoni from the European Perlodes species.
For #stoneflysaturday why don’t you join the search for the Northern February red stonefly and help @BuglifeScotland to map it’s distribution
For #StoneflySaturday here is another UK endemic stonefly - the Orange-striped stonefly (Perlodes mortoni).
For #stoneflysaturday here are two images of the UK endemic Brachyptera putata showing its thoracic markings, dark mark on tibia, pale tarsi and pointed subgenital plate
For #stoneflysaturday here is a comparison of Taeniopteryx nebulosa subspecies. Pronotum of UK endemic subspecies T. nebulosa britannica with bumps at front and rear.
On this date in 1932 H. P. Moon recorded Nemoura sp. larvae in this stony and exposed littoral zone of Windermere #stoneflysaturday
Step aside Keith Moon, Neil Peart, Dave Grohl - stoneflies are excellent drummers https://t.co/mjY4KY9D7O
#stoneflysaturday
How to avoid flying - for #stoneflysaturday check out these movies of flight behaviour in stoneflies https://t.co/k5NlbE1FX6
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