Episode 42: Chilocorus stigma - The Twice-Stabbed Ladybug

This week's episode is all about the twice-stabbed ladybug. Found in North America, this ladybird has interesting genetics and a weird lifestyle. Plus, hear an update with new information about the kidney spot! 

Podcast recommendation - The Wild Episode with Brian Ruckley. Follow https://twitter.com/WildEpisode or www.wildepisode.com :) 

Sources: 

Picture used in show notes by Parihav at the English-language Wikipedia, CC BY-SA 3.0 , via Wikimedia Commons. Picture can be found here: https://commons.wikimedia.org/wiki/File:Twicestabbed1.jpg 

https://www.mdpi.com/2075-4450/11/6/368 - Rigorous Morphological Studies Confirm That the Classical Object of Pest Control Chilocorus kuwanae Is the Same Species as Ch. renipustulatus (Coleoptera: Coccinellidae)

https://biocontrol.entomology.cornell.edu/predators/Chilocoruss.php 

https://www.scielo.br/j/gmb/a/dhbZYvwxrYCKKhnK3SmHJTs/abstract/?lang=en - Information on the XY chromosomes

https://www.nature.com/articles/1931210a0 - Polymorphic chromosomes

https://bugguide.net/node/view/817339 - Another similar ladybird :) 

https://www.fs.fed.us/nrs/pubs/gtr/gtr_wo37/18_mayer_wo37.pdf - Chilocorus stigma and beech scale 

https://aggie-horticulture.tamu.edu/galveston/beneficials/beneficial-16_twicestabbed_ladybug.htm 

https://pubmed.ncbi.nlm.nih.gov/16334330/ 

https://books.google.co.uk/books?id=VGQiB01pBeIC&pg=PA168&lpg=PA168&dq=chilocorus+stigma+mussel+scale&source=bl&ots=XrXmUpe-Se&sig=ACfU3U02pJOEFxUgGz5r2UaebZWKk5m6UQ&hl=en&sa=X&ved=2ahUKEwjvhJXfve_xAhVNSsAKHR_SC1QQ6AEwCXoECAcQAw#v=onepage&q=chilocorus%20stigma%20mussel%20scale&f=false - Chapter from Ivo Hodek's book with info on low survival rates on Mussel Scale. 

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Music by Debra Torrance :)