Lespesia Archippivora (La) is the monarch parasitoid most well-studied. It attacks larvae and causes the death of pupae. The Monarch Lab has confirmed that this parasitoid is the most significant monarch tachinid. This parasitoid is found throughout North America and Central America. It has also been discovered in Brazil. In 1898, it was introduced to Hawaii as a biocontrol agent. Monarch larvae are often parasitized by La in Hawaii and the US. The Monarch Larva Monitoring Project reported a parasitism rate of 13%. (Oberhauser and al. 2007). The eggs are laid by female La on the skin of the host integument. fly larvae hatch and bore into the host soon after oviposition 🤓 La complete their larval development within the host, the maggots emerge from late larvae or pupae, and then pupate in leaf litter and eclose within ~10-14 days 😉 Fly maggots drop to the ground on long, gelatinous tendrils that look like white strings hanging from the monarch. 
Biologists study predation, other causes of mortality and how they affect the colony. Every winter biologists calculate the levels of predation in each colony. The transects are marked and the dead butterflies counted in each m2. Quadrants. Each butterfly has a quadrant. scientists attempt to determine The cause of death (predation or exposure, trampling etc. The type of habitat found by the colony (open canopy or closed, direction, slope, etc.) Also, they record information about the time of year When mortality happened. Scientists attempt to determine normal mortality by collecting this data on a regular basis. These data will provide a base for them in the event of catastrophic changes. Rohit Sumner (Los Angeles, United States), last edited this article 62 days back 
The caterpillar transmits the spore to each Monarch generation. eating milkweed exposed to infected Monarchs and is also passed from the female to the egg When laying eggs, shell the egg. The egg is then spread with dormant spores. laying female onto the egg and the milkweed plant. After the caterpillar has escaped from the egg, it consumes the shell. The spores then reproduce within its body. Also, caterpillars eat the spores found on the milkweed. The protozoa are released during digestion. The parasite also releases spores capable of living almost anywhere before the butterfly pupates. The Monarch’s pupa is covered in spores after it ecloses. It is done. This cycle continues. Jarica Wynn pointed out this to us. 
One organism can prey on another, or use its nutrients to survive. Many people think first of predatory vertebrates, like lions that chase down gazelles or birds eating butterflies caught in mid-flight. Smaller invertebrate predators, such as spiders, bugs, bacteria and viruses, kill far more butterflies than other vertebrates, including lizards or birds. Parasites are organisms that take nutrients from another organisms but don’t kill them (though it can cause death), as well as the special form parasites known parasitoids which eat other insects. This was modified by Deondria, Calvert, on March 13, 2021.