how do mantises reproduce?

Question

sexually or asexually

Answer 1

they reproduce only once a year
The mantis abdomen is large and segmented, and contains the digestive and reproductive organs. It is used for sexual identification among humans. A male mantis has eight abdominal segments, as does the female for her first developmental stages. During female molting, two abdominal segments combine leaving her with six. Females are also frequently larger than males and tend not to fly, especially if she is carrying eggs.
Mantis females lay their eggs in the late fall. Looking like a small foam walnut, each egg will hatch from 50 to 200 mantises. After several weeks of warm spring weather mother nature tells the mantis babies that summers here and it is time to come forth and control pests. At this time the young emerge from between the tiny flaps in the egg case and hang from silken threads just below the case. After drying out the tiny mantises venture out into the garden in search of food.

Answer 2

Sexually.

The females are much larger than the males. After mating, the females lay very intricately-shaped egg cases. Tiny mantises emerge from the egg cases, looking remarkably like their parents cince mantises have incomplete metamorphosis.

See photo here:
http://entomology.unl.edu/images/beneficials/mantids/mantis_eggcase.jpg

Answer 3

sexually
The female often eats the smaller male and lays eggs in a hard cocoon like container.