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Pseudacris hypochondriaca
Hmm, I thought we had the Pacific Tree Frog aka Pacific Chorus Frog here, but now I’m learning that the species was divided into three in 2006, and in Southern California ours is called the Baja California Tree or Chorus Frog (Pseudacris hypochondriaca).
Due to its proximity to Hollywood, this species of chorus frog has often had its vocalizations featured as stock sounds in film and television. Consequently, its distinctive “ribbit, ribbit” call has become the quintessential frog sound in the English-speaking world, even though only this species and a few closely related ones actually produce that sound.
Ichneumonidae
Ichneumons are a diverse group of parasitic wasps. Female ichneumons lay their eggs on or in a living host, usually an insect or spider. When the larvae hatch, they begin to feed on the host, frequently eating it in such a way as to allow it to remain alive for as long as possible, permitting the larvae to complete their development. The host is literally eaten alive.
In 2019, a group of international entomologists suggested the name “Darwin wasps” for this family, in reference to a famous letter that Darwin wrote in 1860 to American botanist Asa Gray. He wrote: “I cannot persuade myself that a beneficent and omnipotent God would have designedly created the Ichneumonidae with the express intention of their feeding within the living bodies of Caterpillars, or that a cat should play with mice.” (Darwin solved this vexing issue by saying that there is no solution. Nature is not cruel or evil, and does not exist to offer us moral lessons; it just exists.)
Gross as endoparasitism sounds, these wasps play an important role in regulating insect populations. This specimen was in my dining room … looking for caterpillars??
tbfc
I enjoyed the buck dancing competition at the annual Topanga Banjo Fiddle Contest & Folk Festival. This is actually one of the judges who got up to shake a leg and tap a toe while the scores were being tallied.
Heuchera sp.
California native Heucheras, commonly referred to as Coral Bells or Alum Root, consist of about 15 different species and sub-species that grow naturally in a variety of habitats in elevations from less than 500 feet up to 10,000 feet. I’m not sure of the exact species growing in the King Gillette Ranch native garden, but it sure is pretty.
hand (was) in glove
Now I’m googling “how to repair a rubber glove.”
The Postman Joseph Roulin
Fun, fast art supply relay session on Draw with Me, using Van Gogh’s The Postman Joseph Roulin for inspiration. Watercolour pencils, regular coloured pencils, watercolours, paint markers, gouache, Posca pens, drawing inks, calligraphy ink.
muscles
At life drawing this week, the teacher gave us a 10 minute overview of the anatomy of the arm. “Any questions?” he asked.
I raised my hand. “Are we supposed to remember all that?” Got a few laughs.
Even though the class is not-for-credit, and there will be no test, I thought I’d come home and review anyway.
Pittosporum tenuifolium ‘Marjorie Channon’
Whenever I notice something for the first time, it makes me wonder what other beauty I am obliviously missing.
Orgyia vetusta
The deerweed on the hills at Leo Carrillo is being absolutely denuded by Western Tussock Moth larvae. Shrub after shrub along the trail has been stripped to bare stems, while others show a thick population of caterpillars munching away with abandon.
Orgyia vetusta is native to western North America, and is considered a pest by many because of the speed at which the caterpillars can defoliate a tree. They‘ve been reported on virtually all California oak species as well as various fruit and nut trees, ceanothus, hawthorn, manzanita, toyon, walnut, and willow. And deerweed!
The defoliation wrought by these caterpillars can trigger a chain reaction in ecosystems. Trees and plants serve as vital resources for numerous organisms, and their decline can throw food chains into disarray and diminish biodiversity. Tussock moth caterpillars have several natural predators, including birds, parasitic wasps and predatory beetles. Here’s hoping that the population reaches a healthy stasis at Leo Carrillo.
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