Over the last few days, I have observed the mating of tree crickets.
The male has translucent teardrop-shaped fore wings. The female has narrow fore wings that wrap closely around the back of her body.
I have mostly found the tree crickets on blackberry canes. Where I have found them mating, the female has laid her eggs in the cane. I see that she chews through the outer part of the stem and makes a small hole. I read that she puts excrement in the hole, lays her eggs and then coats them with a secretion. I broke part of the stem open at one of these egg-laying locations. Inside there were three slender, tubular eggs.
The Himalayan blackberries have excessively spread throughout the arboretum. It is a small consolation to know that tree crickets are using the blackberry canes as a place to lay their eggs for future generations.
I also found them mating and laying eggs on a small Oregon ash sapling, as you can see in the last two photos below.
