A long, dark insect on a wet rock. It is black with long feelers.

Another view of the stonefly.

Spotted what I think are Black Stoneflies (Austroperla cyrene) at the Rob Roy Glacier Track, Wanaka, New Zealand on 1 Jan 2026. They were moving on rocks near a stream.

On iNaturalist [ www.inaturalist.org/observations... ].

#iNaturalist #Nature #Photography #NewZealand #StoneFlies #Plecoptera

Stoneflies Because someone asked and it's been a while

Just reposting the two latest on Substack
#flyfishing #flytying #stoneflies

open.substack.com/pub/cosmicjo...

Stoneflies Because someone asked and it's been a while

Look what you started. 😁

It's been a while, but here's my latest on Substack.

#Flyfishing #flytying #stoneflies

open.substack.com/pub/cosmicjo...

A comprehensive approach to assessing distribution and diversity patterns of stoneflies in New York State: doi.org/10.3897/BDJ....

#conservation #stoneflies #biodiversity

Close-up image of a small, light-brown insect viewed from the front, showing its head, thorax, and upper legs. The insect has two dark eyes and segmented antennae extending upward. The thorax features a symmetrical, dark brown pattern resembling an ornate or shield-like marking. The legs are outstretched laterally, and the background is pure white.

Supplementary descriptions for two species of the stonefly genus Rhopalopsole, with new images to facilitate identification: doi.org/10.3897/BDJ....

#Plecoptera #stoneflies #insects #entomology

Everybody Must Fish Stones When fishing stonefly patterns, you see big, gaudy bugs floating on the river surface. What trout see is an all-you-can-eat buffet of Philly cheesesteaks, buckets of fried chicken, racks of BBQ ribs…

This week’s Flylab newsletter is headed to an inbox near you.

Deeter writes about the annual summer stonefly hatch: “A stonefly hatch is a ‘make you feel young again’ hatch, because even someone who’s fished for years will see the river come alive with fish crashing and thrashing…”

#stoneflies

New records of stoneflies (Insecta, Plecoptera) from the Greater Khingan Mountains, China Plecoptera (stoneflies) are an ancient order of aquatic insects that serve as vital bioindicators in freshwater ecosystems. This study focuses on the Greater Khingan Mountains in north-eastern China, ...

A study of the stonefly diversity of the Greater Khingan Mountains in north-eastern China.

#Plecoptera #biodiversity #stoneflies #entomology

doi.org/10.3897/BDJ....

Fantastic to deliver a workshop on #mayflies, #stoneflies and #caddisflies for @freshwaterbio.bsky.social. Humbling to be looked over by two of the great freshwater ecologist - TT Macan and Richard Chadd.

Say hello to Dictyogenus nadigi, a newly named Alpine stonefly species that just snagged the title of Species of the Year 2025 by the Swiss Systematics Society! 🪰

A Swiss researcher recently published a study detailing six new species in this group. #Biodiversity #SwissNationalPark #Stoneflies

Winter stonefly, a sign spring is around the corner here in NJ! #insects #stoneflies #spring #wildlife #nature #morriscounty #newjersey

Female common stonefly, Perlesta with egg mass about to be deposited.

One of about 30 species in the common stonefly genus Perlesta. This female has an egg mass yet to be deposited. Primarily eastern N. America July 2024. NE US

#stoneflies #Perlesta #Perlidae #Bugsky #insects

Any Stonefly experts out there please? Finishing up @DipteristsForum spring field trip to Radnorshire. A few 'by-catch' individuals to do. From upland mire next to a small fast-ish river. Is this Amphinemura sulcicollis please? #stoneflies #plecoptera