Snowberry Clearwing Moth Caterpillar - (Hemaris diffinis)
A black, sharp-looking horn at the rear end of the caterpillar is harmless, but predators might not risk the encounter to find out.
The Snowberry Clearwing Moth Caterpillar can be detailed through the following descriptors for identification:
safe; harmless; green; thorn; horn; green head; black tail; black side spots; light blue rings; yellow scruff neck; white dots; speckles.
This caterpillar has been found in the following North American states and territories:
Alabama; Arkansas; Connecticut; Delaware; Florida; Georgia; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Nebraska; New Hampshire; New Jersey; New York; North Carolina; Ohio; Pennsylvania; Rhode Island; South Carolina; Tennessee; Vermont; Virginia; West Virginia; Wisconsin; Ontario; Quebec
Note that the states/territories listed are a general indicator of areas inhabited by the Snowberry Clearwing Moth Caterpillar as insects typically go where they please, driven by diet, environmental changes, and / or mating habits.