In New York City there are fifty-one different types of mosquitoes. Most mosquitoes do not transmit disease and some do not bite humans at all. Some mosquitoes have the ability to spread diseases like West Nile virus. From April 1 through October 31, the city monitors mosquito populations and conducts activities to reduce the number of mosquitoes.
Monarch butterfly eggs are somewhat difficult to find in the wild. Since it only takes 3-5 days for eggs to hatch, timing is crucial. The best sign is to watch for adult Monarchs stopping at milkweed plants. A female will usually lay only one egg per milkweed plant to ensure enough food for each larva.onarch butterfly eggs are somewhat difficult to find in the wild. Since it only takes 3-5 days for eggs to hatch, timing is crucial. The best sign is to watch for adult Monarchs stopping at milkweed plants. A female will usually lay only one egg per milkweed plant to ensure enough food for each larva.
Butterflies lay a few to hundreds of eggs in their life span. The huge majority of them will not make it to become a butterfly. There are many predators and hazards in all stages of the life cycle of a butterfly.ost caterpillars hatch out of the eggs in 3-7 days. It can vary depending on species and other conditions. Some butterflies lay their eggs on the top of leaves and others lay them on the underside. In my experience, Black Swallowtails and Gulf Fritillaries tend to lay eggs singularly on the top of the leaves.