#arthropods

[patheticmosasaur1]

today's invertebrate........MY ARMY OF ISOPODS!

HAHAHAHAHA GET 'EM GIRLS

I have 150 of these pictures but tumblr only let's me send 30 so that sucks (pics from isopod.site)

[uncharismatic-fauna]

Fritter Away with the Mormon Fritillary

The Mormon fritillary (Speyeria mormonia) is a common species of butterfly found throughout western North America. There are multiple subspecies distributed throughout its range, which extends from northern Canada to the southern United States, following the Rocky Mountain range. They are found in a variety of habitats, including alpine grasslands, meadows, and sparse pine forests.

Larval S. mormonia are almost entirely dependent on violets for food, while adults will also feed on milkweeds, thistles, and daisies, as well as mud puddles and animal waste. Birds, rodents, lizards, frogs, spiders, and mantids are all common predators of both caterpillar and adult Mormon fritillaries.

Mating for the Mormon fritillary occurs in mid to late summer. Males regularly search open areas for available females, and following an encounter females lay their fertilized eggs in leaf litter near patches of violets. After about 10 days the eggs hatch, but rather than feeding the caterpillars enter a period of hibernation that lasts throughout the winter. Come spring, they emerge and feed on their host plant for just over a month. Pupation takes 10-12 days, after which they emerge as fully mature adults. In the wild, individuals can live up to 4 years.

S. mormonia are rather small, but brightly colored butterflies. The wingspan for females ranges from 25-27mm (0.98-1.06 in), while males are slightly smaller at 23-26mm (0.9-1.02 in). The top wings of both sexes are orange with black spotting, while the undersides are lighter yellow with white spots, and the body is covered in brown or tan fur.

Conservation status: The Mormon fritillary has not been evaluated by the IUCN, but populations are generally considered to be stable across the US. Its most common threat is the disappearance of its host flower species.

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Photos

John Lane

Mark Leppin

David Inouye

[bugtoot]

moff

[marcelwasp]

This is what trying to get info on insects is like and it pisses me off

[mintflavoredart]

[vexwerewolf]

Being autistic is weird because I think I'd be entirely entirely immune to the maddening effects of witnessing an Elder God but learning that barnacles are arthropods rather than molluscs nearly gave me an existential crisis

[scribblyspaceskeleton]

Speaking up and educating people on why the most hated life forms on the planet are important and meaningful is a thankless task.

How do we reach out and get people to care about insects and spiders when the average reaction is either "EEWW KILL IT WITH FIRE" or blind panic?

Arthropods are crucial to the survival of life as we know it. Yes, even commonly vilified bugs like wasps and mosquitoes have ecological niches that the world CANNOT do without.

I cannot overstate their importance.

[trunswicked]

Bunch of arthropod guys - refs created for OC purposes! ;)

[tibli]

I love when arthropods have a pseudopupil. It's so whimsical and cute, and they come in so many varieties!!

little kitty cat eyes!!!

bombastic side eyes!!!!

cartoon character eyes!!!!

bigass anime eyes!!!!!

BE NOT AFRAID eyes!!!!!

[humblegrub]

triops are one of my all-time fave little guys

[uncharismatic-fauna]

Uncharismatic Fact of the Day

With Chrysina limbata around, you won’t need a mirror! This species has an especially shiny exoskeleton, reflecting up to 97% of the light that hits it. In the wild, the mirror-like reflective surface may fool potential predators into thinking the beetle is just a drop of water- effectively serving as conspicuous camouflage.

(Image: Close-ups of Chrysina limbata by Michael Farmer)

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[sixteenseveredhands]

Wool-Carder Bees: these solitary bees harvest the soft, downy hairs that grow on certain plants, rolling them into bundles and then using the material to line their nests

Wool-carder bees build their nests in existing cavities, usually finding a hole/crevice in a tree, a plant stem, a piece of rotting wood, or a man-made structure, and then lining the cavity with woolly plant fibers, which are used to form a series of brood cells.

The fibers (known as trichomes) are collected from the leaves and stems of various plants, including lamb’s ear (Stachys byzantina), mulleins, globe thistle, rose campion, and other fuzzy plants.

From the University of Florida's Department of Entomology & Nematology:

The female uses her toothed mandibles to scrape trichomes off fuzzy plants and collects a ball of the material under her abdomen. She transports these soft plant fibers to her selected nest site and uses them to line a brood cell. Next, she collects and deposits a provision of pollen and nectar into the cell, enough pollen to feed a larva until it is ready to pupate. Lastly, she lays a single egg on top of the pollen and nectar supply before sealing the cell. ... She will repeat this process with adjoining cells until the cavity is full.

These are solitary bees, meaning that they do not form colonies or live together in hives. Each female builds her own nest, and the males do not have nests at all.

Female wool-carder bees will sometimes sting if their nest is threatened, but they are generally docile. The males are notoriously aggressive, however; they will often chase, head-butt, and/or wrestle any other insect that invades their territory, and they may defend their territory from intruders up to 70 times per hour. The males do not have stingers, but there are five tiny spikes located on the last segment of their abdomen, and they often use those spikes when fighting. They also have strong, sharp mandibles that can crush other bees.

There are many different types of wool-carder bee, but the most prolific is the European wool-carder (Anthidium manicatum), which is native to Europe, Asia, and North Africa, but has also become established as an invasive species throughout much of North America, most of South America, and New Zealand. It is the most widely distributed unmanaged bee in the world.

A few different species of wool-carder bee: the top row depicts the European wool-carder, A. manicatum (left) and the spotted wool-carder, Anthidium maculosum (right), while the bottom row depicts the reticulated small-woolcarder, Pseudoanthidium reticulatum, and Porter's wool-carder, Anthidium porterae

Sources & More Info:

University of Florida: The Woolcarder Bee

Oregon State University: European Woolcarder Bees

Bohart Museum of Entomology: Facts about the Wool Carder Bee (PDF)

Bumblebee Conservation Trust: A. manicatum

World's Best Gardening Blog: European Wool Carder Bees - Likeable Bullies

Biological Invasions: Global Invasion by Anthidium manicatum

[futurebird]

Wasps so tiny you will question everything.

Imagine being so teeny tiny that you are an endoparasite on *leafhoppers* Leafhoppers are already in the "so small they go unnoticed" category, and you're just a little pest on a minuscule thing.

Of course the group that's most likely to choose this life? The wasps Wasps are some of the smallest insects. There are "fairy flies" that are parasites of the eggs of certain insects.

They are so small that air is "thick" to them and their wings have feathered edges are are oar shaped.

Some fairly flies are so tiny that their neurons are cells without nuclei. They got rid of them to save space. They can still think though... presumably the tiniest little thoughts.

Photo by Alexey Polilov, 2012

They lay their eggs inside of the eggs of 1-2mm long crop pests.

And... read the article to see what the males are like... they are even smaller somehow, but it's ... disturbing.

[alienbath]

One of my favorite millipedes, just stunning

[yee-qi]

Tribute to Anomalocaris

Not a Perspectives post, still working on the next one of those. Anomalocaris also isn't exactly the great grandpappy of all arthropods, but...close enough lol

[jenfoundabug]

I thought this feisty little critter was an isopod until I got a closer look. This is a carrion beetle larva, and, as their name suggests, adults and larvae of this insect eat dead animals, maggots that live in carrion, and/or other types of decaying organic matter. I have no idea where this one came from, since there were no dead animals nearby or compost. Perhaps an insectivorous bird dropped it, or maybe this particular species likes chicken manure (there was a chicken tractor nearby vroom vroom). Putting this next part below the cut because it's a little gross. Proceed with caution:

This carrion beetle child seemed somewhat hungry, as it was nibbling at some dead skin around my finger nail. It tickled a bit and reminded me of the shrimp they sometimes have at aquariums that will nibble at your fingers. Yes that's a thing.

unidentified Silphidae larva Northeastern Pennsylvania, US