The eggs usually hatch in mid-June to early July. The 1/2-inch-long immature praying mantis nymphs resemble the adult, but they do not have wings. Colorless praying mantis nymphs emerge from the ootheca all at one time. During their first hour, they darken in color to blend in with their surroundings.

What time of year do you see praying mantis?

Mantids are normally seen in late September and early October. Around this time, females are full of eggs and search for males with which to mate. Females often bite the head off the males after mating and may or may not eat him entirely. This happens between 5 - 31% of the time.

What temperature do praying mantis need to hatch?

The ideal temperature for development is around 76-78 degrees F and after about 4-6 weeks the nymphs should hatch from the egg case.