Hopefully the job will be more stable 😄
26.02.2026 21:02
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Hopefully the job will be more stable 😄
Chimarra (Trichoptera: Philopotamidae). Head capsule with asymmetrical notch on frontoclyetus; membranous T-shaped labrum
Chimarra (Trichoptera:Philopotomidae). Foreleg showing subapical process on coxa
Chimerra (Trichoptera: Philopotamidae)
#Macroinvertebrate for this week: Chimarra (Trichoptera: Philopotamidae) a net-spinning caddisfly collected from Centre County, PA. T-shaped labrum; assymetrical notch on frontoclypeus and long slender process on coxa of foreleg.. #caddisflies
Burrowing Mayflies. A thread Part 1: Ephemeridae, Polymitarcyidae, and (Potamanthidae) are three families of mayflies whose ecology is strongly shaped by associations with fine-sediment habitats in rivers and streams and their burrowing habits #Ephemeroptera 1/6
Dorsal view of larvae of Anthopotamus (Ephemeroptera:Potamanthidae)
Close up of head, Anthopotamus (Ephemeroptera:Potamanthidae)
Third taxa - Anthopotamus (Ephemeroptera:Potomanthidae), the "Hackle-Gills". Forked gills projecting laterally, tusks projecting beyond head. Less of a burrower. Still have cool tusks 😊 #Ephemeroptera 6/6
Head of Polymitarcyidae (Ephemeroptera). Long downward curving tusks with tubercles on upper surface
lateral view of Polymitarcyidae larvae. Long forked gills on abdominal segments 2-7.
A second family of burrowing mayflies, Ephoron spp. (Ephemeroptera:Polymitarcyidae). Downward facing tusks with tubercles on upper surface and large forked gills. Also known for having large mass emergences. #Ephemeroptera 5/6
We have a third genera of Ephemeridae, Litobranchia retrocurva (Ephemeroptera:Ephemeridae). 1st gill is small and unbranched. #Ephemeroptera 4/6
Dorsal view of head, domed frontal process, prminent whorled flagella/setae? on antennae
Detail of gills of Hexagenia
second genera of Ephemeridae! Hexagenia spp (Ephemeroptera:Ephemeridae). Note the rounded/conical frontal processand whorled setae on antennae. Gorgeous gills! Hexagenia is known for large mass emergences, #Ephemeroptera 3/6
Burrowing mayfly of Ephemeroptera:Ephemeridae: Ephemera spp. Dorsal view of head. Note the forked frontal process
Burrowing mayfly of Ephemeroptera:Ephemeridae: Ephemera spp. Lateral view of head with upturned tusks
Burrowing mayfly of Ephemeroptera:Ephemeridae: Ephemera spp. Fluffy abdominal gills on dorsal area of abdomen
Below are images of Ephemera (Ephemeroptera:Ephemeridae), who often contruct U-shaped burrows in depositional substrates. Note the forked frontal process.. #Ephemeroptera 2/6
see also: diptera.de/CNC_Diptera/
New semester, first lab of my aquatic invertebrate class. Had students looking through some old samples today with Mason Ward’s help @masonsward.bsky.social. Had a beautiful Philopotamidae specimen: Chimarra spp. in a sample from half Moon Creek, PA #macroinvertebrates #Trichoptera
Happy Yule to me and co-authors Marinus Otte and @jonsweetman.bsky.social!! Final PhD chapter out in @restorationecology.bsky.social
Read about microbial communities in restored and natural wetlands in ND this holiday season 😊
doi.org/10.1111/rec....
I just got off an extremely depressing call with my amazing Canadian collaborators at Natural Resources Canada who are facing cuts, retirement buy-outs, and layoffs for biologists across the board. This just seems a slap in the face to scientists in Canada.
This seems like kind of a big deal given the tumultuous history involved... www.cbc.ca/news/health/...
Mesocosm tanks in a field with insect emergence traps
Severe thunderstorm and tornado warning this evening. We will see how our floating emergence traps fare.. the joys of outdoor mesocosms! @masonsward.bsky.social
Plastic is everywhere. Even in earthworms! Find out about our new research funded by @hedgehogsociety.bsky.social and @sussex.ac.uk. www.bbc.co.uk/news/article...
@emilyzoologist1.bsky.social
Thanks for a great meeting @freshwaterscience.bsky.social!
Party on! Really enjoyable talk by Mason Ward about invertebrate residents of vernal ponds and their determinants at #sfs2025
Setting up and filling mesocosms today with @masonsward.bsky.social M
Not completely set up yet, but they will be out at Rock Springs. agsci.psu.edu/research/cen...
Pulling mesocosm tanks out of storage and cleaning them in preparation for summer experiment! Quill was happy to come out and help..
📣Join the Early Career Committee for their workshop on navigating mentorship in freshwater science!
📆Thursday, May 9, 12:00 PM EST
🌐Registration: ua-edu.zoom.us/meeting/regi...
Freshwater macroinvertebrates have been incorporating microplastics for more than 50 years.
👇 Caddisfly cases with plastics from 1971 and 1986
Paper: www.sciencedirect.com/science/arti... and @science.org news: www.science.org/content/arti...
Crane fly larvae (Tipulidae) Nice big chonker (technical term)..
Sampling aquatic invertebrate substrate cages with PhD student Ibrahim Fagbohun and colleague Dan Allen in Maryland today. A little drizzly but otherwise good field day!
Eubranchipus vernalis (Branchiopoda: Anostraca). eastern fairy shrimp #macroinvertebrates #fairyshrimp
Happy Spring! Fairy shrimp (Eubranchipus vernalis) are hatching in the local vernal
ponds
Litobranch recurvata (Ephemeroptera: Ephemeridae) larvae
Mandibular tusks
Antennae lack the big whorl like setae like in Hexagenia
1st abdominal gill is small, a single filament
A cool burrowing mayfly (Ephemeroptera: Ephemeridae) from eastern North America - from last year's class samples from a stream in central Pennsylvania. Litobrancha recurvata (McCafferty, 1971). #macroinvertebrates #Ephemeroptera
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