A cockroach (Periplaneta fuliginosa) in Sydney laying an ootheca.
oo- + theca
ootheca (plural oothecae)
- An egg case of any of the orthopteroid insects (such as cockroaches and mantids).
1994, Daniel Evan Weiss, The Roaches Have No King, ISBN 9781852423261, page 4:
- Since the founding of the colony it had been a tradition to unload oothecae – egg sacs – in the cabinets so the younglings would be near the principal food stocks.
egg case of orthopteroid insects