Belated #MiteMonday: it's the time of year I start carrying a little water dropper bottle for the whirligig mites. I've found it's a reliable way to get them to stay still for photos.
Belated #MiteMonday: it's the time of year I start carrying a little water dropper bottle for the whirligig mites. I've found it's a reliable way to get them to stay still for photos.
#Earthquake (#sismo) M4.0 strikes 42 km S of #Acarí (#Peru) 7 min ago. More info: https://m.emsc.eu/?id=1810336
Little red mites of spring!
- A larval sidewalk mite (_Balaustium_) eating pollen
- A young whirligig mite (family Anystidae) eating clover mite eggs (the little reddish balls)
- Sumo mites (_Allothrombium_) wrestling
- and lastly, a clover mite (_Bryobia_), which isn't really that red when full grown but which all of the other mites are frequently misidentified as. They won't be out much longer, they go dormant in the hot months.
#MiteMonday: this weekend I got out to my sumo mite (_Allothrombium_) tree to catch some wrestling bouts!
It is some kind of sexual competition thing: certain males seem to stake out a little patch and aggressively defend it against all comers. The females, I think, are the larger ones who take little notice of the fights and mostly wedge themselves into crevices in bark? Courtship rituals seem to involve leg-tapping and walking around each other in circles. I am wildly curious about what's actually going on.
#Earthquake (#sismo) M4.3 strikes 65 km S of #Acarí (#Peru) 11 min ago. More info: https://m.emsc.eu/?id=1806905
#Earthquake (#sismo) M5.3 strikes 68 km SE of #Acarí (#Peru) 7 min ago. More info: https://m.emsc.eu/?id=1806513
#MiteMonday: a red velvet mite (_Allothrombium_) sneakily snacks on midges from a spider's web. I also saw a red-winged blackbird eating a midge-filled spiderweb, too. At this time of year, the few spiders that overwintered catch so many midges that their webs almost collapse under the weight—more than they could possibly eat. I wonder how much midge biomass these spiders inadvertently make available to other animals!
Did you know? Tiny penthaleid mites will sometimes wear water drops as hats.
(That's a total fuckin' lie, it's their excrement. Their anuses are located on their backs.)
I almost forgot it was #MiteMonday! Inspired by @zorbama's shot of a running crab spider, clover mite, and midge all together (https://veganism.social/@zorbama/114373000260983349), here's a running crab spider (_Philodromus_) I found feeding on a clover mite (_Bryobia_). I don't actually often find many arthropods feeding on the adults, though I've seen predatory _Anystis_ mites eating the eggs.
#Earthquake (#sismo) M4.0 strikes 70 km S of #Acarí (#Peru) 14 min ago. More info: https://m.emsc.eu/?id=1795103
#NewSpecies!
New water mite from #china just swam in:
Atractides cardiacus
Treatment: https://treatment.plazi.org/id/0396422E-FFE2-FF89-FE29-871A827AF68C
Publication: https://doi.org/10.5852/ejt.2025.976.2775
#ejtaxonomy #AtractidesCardiacus
#FAIRdata
#science #OA #openaccess #biology #taxonomy #ecology #biodiversity #nature #wildlife #conservation #animals #invertebrates #arachnology #arachnids #acarology #acari #mites #watermite
I almost forgot it was #MiteMonday! From under one of my reliable dead logs just a few days ago, a mesostig with its prey, a tiny white springtail; a slug for scale; and a smaller, paler mesostig crossing paths with another springtail (which it did not try to eat).
#Earthquake (#sismo) M3.6 strikes 69 km S of #Acarí (#Peru) 4 min ago. More info: https://m.emsc.eu/?id=1785436
During this recent spate of warmish weather I've been checking my go-to sumo mite (_Allothrombium_) trees. It's still too early for a dense population, but there are definitely a few out and about!
Here's an earlier video I took of sumo mites wrestling: https://youtu.be/qZ0Ml6VXujg
#Earthquake (#sismo) M3.9 strikes 39 km S of #Acarí (#Peru) 12 min ago. More info: https://m.emsc.eu/?id=1783937
Flipped over a piece of log on a big dead stump and there were tons of those little iridescent blue-purple springtails, but also several mesostigs. I was watching them hoping one would catch a springtail, and one seemed to be questing about for something. Then it chased after one of the other mites, flung itself on its back, and after some tumbling around ended up clinging to its underside. Then, this. I'm not even sure what's happening, I don't even know what appendages these mites use for sperm transfer.
edit: oh yeah I forgot to add they're totally having sex
The first #MiteMonday in a while! The wet dead leaves are a bountiful source of predatory mesostigmatid mites.
#Earthquake (#sismo) M3.6 strikes 71 km S of #Acarí (#Peru) 12 min ago. More info: https://m.emsc.eu/?id=1780583
Now Bug of the Year is over, normal service can resume!
Here's an incredibly feathery velvet mite (Chyzeriidae) from New Zealand. These active predators wander the forest floor, looking for springtails to ambush and drink dry using their piercing mouthparts! Beautiful but deadly.
#Earthquake (#sismo) M5.2 strikes 59 km S of #Acarí (#Peru) 7 min ago. More info: https://m.emsc.eu/?id=1772793