|Two pretty Birds: Selasphorus rufus visiting Caesalpinia pulcherrima|
|Red Birds of Paradise Caesalpinia pulcherrima|
|Desert Bird of Paradise, Yellow Bird of Paradise (Caesalpinia gilliesii)|
Anyway, the plants are not very long lived. Recently, half of a 12 year old tree dried up. When I was cutting it up, I noticed the exit holes of beetles. There might have been both Buprestides and Cerambycids it seemed. Although it seems a lot like closing the barn door after the horse has escaped, we cut up the branches to place them in a closed container. If there are still beetles hatching, we will see them.
I am interested to see what species can feed on an introduced tree. The leguminous Birds maybe related closely enough to mesquite and palo verde to host the same insects. There is of course no way of telling whether the beetles that left the holes had anything to do with the demise of the branch. Many species are strongly drawn to fresh-dead wood, which is still nutritious without being defended by tree sap. If I find anything, I'll add it here.
September 1, 2014 two buprestids have emerged. A small black white and red Acmaeodera gibbula and a larger Chrysobothris sp. Robert Velten from So Cal says: "Chrysobothris merkelii is a good bet, quite polyphagous. They kill senescent Albizia trees in landscaping here. Seems like most of the woody pea family shrubs and trees locally can serve as hosts."