4th instar monarch caterpillar
Detailed Description
Monarch caterpillars proceed through 5 instars (i.e., larval stages) before forming a chrysalis, at which point they develop into adults. 4th instar caterpillars spend 1-3 days in this developmental stage, depending on temperature, voraciously consuming their host plant, milkweed (Asclepia spp.).
Sources/Usage
Public Domain.
Related
Monarch Conservation Science Partnership
The Challenge Over the last two decades, the Eastern migratory population of monarch butterflies has declined by about 80%, leading many scientists to consider how to best conserve and rebuild monarch populations. Conservation efforts can be challenging to design and execute because of the multi-generational migration of monarchs that spans North America. Conservationists must consider many...
Related
Monarch Conservation Science Partnership
The Challenge Over the last two decades, the Eastern migratory population of monarch butterflies has declined by about 80%, leading many scientists to consider how to best conserve and rebuild monarch populations. Conservation efforts can be challenging to design and execute because of the multi-generational migration of monarchs that spans North America. Conservationists must consider many...