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Live Praying Mantis Egg Case

Quick Overview

Watch a cloud of tiny praying mantises (or nymphs) emerge from a Praying Mantis Egg Case. 

Availability: Out of stock


See 75 to 200 Baby Mantises (also called Nymphs) emerge from a Praying Mantis Egg Case (Ootheca)! Once they hatch, release all but one or two Praying Mantises, as they are carnivorous and may eat their siblings. Initially you can feed your Praying Mantises tiny insects like aphids. As your Mantids grow, it is necessary to switch to larger fare like flies and crickets.

Praying Mantises are fascinating predators; they can turn their heads 180 degrees and their excellent eyesight can detect movement up to 60 feet away. Some mantises actually become tame enough to accept food from your fingers.

Insect Lore recommends that you feed and observe your Praying Mantises for a short while and then release them in your garden to forage for garden pests. 

Egg cases are available mid-January to the end of June, while supplies last. Allow 4 to 10 weeks to hatch

Cases sold individually. Instruction and information sheet included. Food for the hatchlings not included.

Shipment of praying mantis egg cases is seasonal and limited to availability during springtime and early summer months only. Delivery of live egg cases is limited to destinations within the continental USA. We cannot ship them to Alaska, Mexico, Puerto Rico, Hawaii or Canada.

Use as a refill for your Pop Up Port-A-Bug With Live Praying Mantis Egg Case.

Recommended for Ages 4 and Up With Adult Supervision

  • Egg Cases sold individually
  • Ideal as a refill for your Pop Up Port-A-Bug With Live Praying Mantis Egg Case
  • Or, choose to house your Egg Case in the Pop Up Port-A-Bug sold separately
  • Allow 4 to 10 weeks to hatch
  • 75 to 200 Praying Mantises can hatch from one egg case
  • Release them soon after hatching as they are carnivorous and may eat their siblings
  • You may keep one or two to observe for a short while.
  • Feed your Praying Mantis aphids or any small insects
  • Egg cases are available from mid-January to the end of June, while supplies last
  • Instructions and information sheet included
  • Recommended for ages 4 and up with adult supervision
  • Shipment of Egg Cases is limited to the Continental US; we cannot ship Egg Cases to Alaska, Hawaii, Mexico, Puerto Rico and Canada

Dimensions: 3.0” x 3.0” x 3.0”

Weight: 0.12 lbs

Weight: 0.12 lb

Manufacturers Recommended Age: 4 and up with adult supervision

Warning: Choking Hazard. Small parts. Not for children under 3 years.


  1. "Mommy, why did they send us a rock?" says my daughter. Review by Raquel - Pflugerville, Texas

    Soooooooo fun! my kid thought they sent us a rock! i had to explain over and over to her what the ooth (mantis egg case) really was. when they hatch, release all but 4 at the most. keep them in separate containers as well. and for food, go to petco or petsmart or whatever pet store and buy FLIGHTLESS FRUIT FLIES for your nymphs (baby mantises). (Posted on 5/23/15)

  2. Amazing Experience! Review by Vanessa - Somerset, New Jersey

    Like many others, we figured the egg sack was not viable. I pictured my students disappointed faces as they recorded a 6th observation entry depicting yet another brown egg sack. I am happy to report that after 5 1/2 weeks, all babies hatched! Unfortunately we did not get to see them come out of the egg sack. School starts at 7:50am and judging by their appearance we missed them by just a couple hours. The students and I released them around the school and the courtyard. We are hoping to see a few return next year. I will definitely be purchasing the kit next year! (Posted on 5/23/15)

  3. Amazing to see hatch!!! Review by Chris - Chicago, Il

    As some said the sacks take a little while so be patient. Amazing when the pod opens hundreds of tiny mantisis coming out together. Some eating each other on the way out. My kids loved it and took pics with some on their finger tip. We let them go in our veggie garden the following morning. Occasionally we would find one in the garden over the summer. (Posted on 5/5/15)

  4. very interesting Review by Patti - Cuyahoga falls , Ohio

    We always love these- looks dead and then all of the sudden thousands are born. very fun to release- as they like trees and small bugs. They have even returned to our house for a visit! Started to find a full grown about 3 inch praying mantus on my door more than once- returning to his birthplace! Plus they eat the pests around here- what could be better! have to release almost as soon as they are born- as others have stated they will die without water and food. (Posted on 3/16/15)

  5. So cool! Review by AJGlenn - Palacios, Texas

    I thought nothing was going to happen, and actually forgot about it sitting in my classroom, until one day one of my students told me there were bugs in my jar! They were so tiny and cute, and watching them come out of the case was too cool! (Posted on 3/6/15)

  6. Love these guys! Review by K - Medford, New York

    Like another reviewer, we had given this egg sack up for a dud but then it hatched!

    The babies were adorable and we let them go quickly for fear of cannibalism - actually we opened the environment and hung it outside, but many of them didn't want to leave. This was hard b/c some died in there, but we did what we could to encourage them all to leave and I think most got out okay.

    Overall, this was a great experience for us, we only wish the instructions on how to feed/release the babies were clearer, but we just looked online for info. (Posted on 5/31/13)

  7. Awesome Review by Crazy mama - Old bridge , New jersey

    This is so cool I loved it! Hundred of babies. We released as soon as born,very hard to feed. Pick a plant with aphids. (Posted on 5/19/13)

  8. Awesome but delicate adn give them water! Review by Rachael - Montgomery, Alabama

    We got the egg sack which took longer than anticipated to hatch. Everyone had given up on it but low and behold one day it did after several weeks. The texture of the sack had even changed so I thought it was dead but it wasnt!. They were small and looked like sticks at a distance but sooo cute! They will eat each other so have fruit fly larvae or other really small live creatures for them to eat. There were probably a little over 100 that hatched out but we only have 1 left because my youngest got a hold of the cointainer, they ate eachother, some refused to eat the fruitflies because they were to big(so get the larvae), and I didnt think to get them a piece of sponge with water on it which they need. So we have learned alot and next time we are getting two eggs and will be prepared with containers, larvae and sponges! (Posted on 5/14/13)

  9. Awesome Review by DCRoberts - Kirkland, Wa

    The kids loved this. They watched the little critters for a long time then let them out in the garden. (Posted on 5/6/13)

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