What is Street Creatures?  This is the game I run on Twitter every Friday. I’ve
collected all the past quizzes here in one place so you can either relive them, or play
them for the first time.

How does it work?  Provided are four, seemingly unrelated clues, that are all
connected by a wild organism that can be found in a city. Look at the four clues,
do some research, and when you think you’ve figured it out, click on ‘Answer’
to reveal what connects the clues, and how they are connected.

Follow me on Twitter to play #StreetCreatures live every Friday at 9am PST.

Quiz #46 Clues

Bleeding Heart
Mount Parnassus

(The answer to this one is generally found outside of urban areas)

Answer (Don't click until you've solved it)

Clodius Parnassian (Parnassius clodius)



This is a white, vaginal plug males exude and shape with their genitalia while mating. They leave it on females to prevent them mating again. This genus produces one of the most conspicuous sphragis.

Bleeding Heart:

The larval host plants for the Clodius Parnassian are those in the bleeding heart family (Fumariaceae).

Learn more.


Clodius Parnassian larvae resemble millipedes, specifically those in the Harpaphe genus, which who they coexist. Like the millipedes, the butterflies are thought to be toxic, so this may be a case of Müllerian mimicry.

Mount Parnassus:

The Parnassian butterflies get their name from Mount Parnassus, home of the gods. But there was a move to change their common name to ‘Apollo’, which Robert Michael Pyle called ‘regrettable’ in ‘Butterflies of the Pacific Northwest’.

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