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mathbug.bsky.social

@mathbug.bsky.social
16 followers 54 following 107 posts
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mathbug.bsky.social @mathbug.bsky.social · 10/10/2026
She is lovely! Here’s a Northern Crab Spider only slightly annoyed that I disturbed her hiding spot.
A yellow spider with brown stripes and markings perches on an equally yellow petal of a black-eyed-susan flower. Unusually for a crab spider, she is covered in short brown bristly hairs all over.
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mathbug.bsky.social @mathbug.bsky.social · 21/07/2026
Also these Cottonwood Dagger Moth caterpillars I’ve named Macbeth and Lady Macbeth.
A large green leaf with big toothy margins, with a very fluffy, bright yellow caterpillar curled into a C shape. The caterpillar’s dark head can just barely be seen under the long, silky mass of highlighter-yellow hair. Along its back, the caterpillar has five long, thin tufts of black hair, stiffer than the yellow so that they stick out straight.A curled, partially eaten leaf of bigtooth aspen, occupied by another fluffy yellow caterpillar. This one is a paler yellow than the first, and its hair looks tousled. This one only has three black tufts of stiffer hair along its back, one near the head and two near the end.
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mathbug.bsky.social @mathbug.bsky.social · 21/07/2026
How about proto-moths? I was delighted to spot this Camouflaged Looper (aka Wavy-Lined Emerald) the other day. I’m going to try to rear it.
A large black-eyed Susan flower fills the frame, with yellow ray florets and a dark brown center. On the left side of the central disc is an arch of brown material, with ragged edges. It looks like a bit of debris, but is actually a tiny caterpillar covered in pieces of the brown florets from the center of the flower.
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mathbug.bsky.social @mathbug.bsky.social · 11/06/2026
YOU! You are SMART! Actually, I can think of just the spot, with some lovely old trees and lots of tiny white flowers (starflowers, for the next few weeks anyway). The mosquitos are dire, but it might be worth it.
Three white starflowers in a line going up the image. The small flowers have seven pointed white petals and a spray of white stamens in the center with yellow anthers at the ends. The flowers rise on delicate stems out of a whorl of green, pointed leaves.
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mathbug.bsky.social @mathbug.bsky.social · 27/09/2025
I do love when cats get so comfy they twist their heads nearly upside-down. Here’s Cricket doing the same, with bonus paw-over-nose!
A black cat curled up on a stack of blankets, with his head twisted upside-down and his paw covering his nose.
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mathbug.bsky.social @mathbug.bsky.social · 10/09/2025
Ok yeah, I can’t argue with that! Here, have one of each.
An orange and black striped monarch butterfly hanging from the end of a stalk of bright yellow goldenrod flowers.An orange and black striped viceroy butterfly posing on the tip of a leaf. Its wings are backlit by the sun, making them glow bright orange.
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mathbug.bsky.social @mathbug.bsky.social · 09/09/2025
I found a really excellent katydid while out for a walk!
A very large (4 inch long) green katydid perched on my forearm, facing toward the camera and to the left. The katydid is brilliant green all over, with paler green legs. 

Her green wings are long and narrow, extending well past her abdomen, but a long spike extends even further out her back end: an ovipositor, indicating she is female.

Her head has a conical protrusion sticking out above her eyes, giving her a ridiculous look!
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