You should capture all specimens and send them to the local dnr. quarantine orders have been given out for these kinds of insects.
AFAIK that's only for Invasive Asian Longhorns (
Anoplophora glabripennis) and Citrus Longhorns (
Anoplophora chinensis). Ipochus Fasciatus was described in 1852 in my area of California, I don't think it's an invasive species, I think it's about as local as they come. Either way, I haven't seen one before or since I found and photo'd the one I did, so my guess is that my Praying Mantids have eradicated whatever population existed. I had at least 4 distinct Mantids fully mature in my little garden (And if I found 4 I can only imagine how many I haven't found), and they are voracious feeders, my total levels of insects has gone down dramatically hahaha, I'm hoping that they leave a couple good egg sacs for next year.
The thing that got me was the larva stage. they don't have a nymph stage. The picture didn't seem beetle like.
From my research it seems like certain species of longhorns mimic other animals (Ants, Bees, Wasps, Spiders, etc.), I believe in the case of Ipochus Fasciatus the "intent" is to mimic spiders, hence the long hair, the lack of wings, the bulbous abdomen, etc.