Subject: odd bug
Location: NE Los Angeles County, California (Tujunga, CA 91042)
July 14, 2017 5:21 pm
It flies, it is the size of a large carpenter bee. I has a beetle like head ans wings that are orange, white and black that appear to attach at the back legs. His coloration is much like a monarch caterpillar on his body.
Signature: Pauline Penn
This is one of the wasp-mimicking moths in the family Sesiidae, and we were lucky to locate the Sesiidae of Los Angeles County page on iNaturalist. We believe this is a Glorious Squash Vine Borer, Melittia gloriosa. There are some nice images on BugGuide. According to BugGuide it is also called the Manroot Borer and “Larvae bore in the large tubers of various cucurbitaceous plants.” Manroot is a native plant that is also known as wild cucumber. The dried leaves in your one image appear to be the leaves of a manroot.