Still in same spot 24+ hours later.
There are claims circulating online that milkweed is toxic to spotted lanternflies though experts say there is no science to support this. However, I have observed that spotted lanternflies found on common milkweed (and presumptively have fed on it) in several different sites across several boroughs exhibit altered responses to touch. Normally, SLFs on other plants will immediately jump and take a short flight before I can even grab the insect. However, the ones on milkweed seem very lethargic, don't move in response to being prodded or move feebly and they don't hop. Their responses seem staggered.
I should not even be able to touch the insect like this since 1) it would have already hopped away and 2) would have actively struggled if I had caught onto it.
Here it's not responding in a typical manner. After being touched, the specimen still did not hop or fly away which is quite bizarre.
Also see observations:
https://www.inaturalist.org/observations/183442869
https://www.inaturalist.org/observations/183443221
With a bee attacking it. The bee didn’t kill it.
South Llano River St Park Junction TX