Location: Los Angeles, CA
Thursday, September 21, 2017 6:42 PM
Found it on my cannabis plant.
Though we have not had any luck locating any images that look exactly like the creature you submitted, we can’t imagine it is anything but a Scale Insect. Beyond the Human Eye has some nice Scale Insect images.
Continued searching might have resulted in an identification. Thankfully your situation has not escalated to this stage pictured on BugGuide of Chinese Wax Scale. According to BugGuide the Chinese Wax Scale is “Non native. Introduced from Asia.”