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Size: see scale bars

Site of sample collection: A stream full of algae near the South Pond, Katsurashima Ryokuchi (a freshwater habitat), Sendai, Japan

Date of sample collection: August 27th, 2022

Weather: Cloudy

Water temp.: 25.4°C

pH 7.0

Date of observation: August 28th, 2022 (the collected sample in a plastic container was left near a window out of direct sunlight at room temperature until observation)

Bright-field observation using a Wraymer microscope (model BX-3500TL, Osaka, Japan) equipped with a Floyd-2 HDMI ethernet digital camera (Wraymer, Osaka, Japan). The accuracy of the scale bar was confirmed by using a stage micrometer glass slide (1 div. = 10 µm; Wraymer, Osaka, Japan) at each magnification.

Was observed for at least 15 minutes, and was found with 5 confirmed others of its kind in the same bush. No eggs, cocoons, or adult butterflies were seen nearby.

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-approximately 2 inches long
-bright lime-colored base
-black and yellow spots with striped head
-white/baby blue underside
-was observed eating the flowers of a fennel bush

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Papilio polyxenes, the (eastern) black swallowtail, American swallowtail or parsnip swallowtail, is a butterfly found throughout much of North America. It is the state butterfly of Oklahoma and New Jersey.

I've been threatening to do this for years: I'm uploading this image of tumbleweeds to document them in three states simultaneously. Note the survey marker in the 2nd image. Tumbleweeds in the foreground are in Texas; those in the right background are in OK, those in the left background are in NM.