Periplaneta americana, female and male flanking 1st and 9th Instar larvae and an ootheca

Periplaneta brunea, female with ootheca (L), ootheca and male (R).

Periplaneta fulginosa, female with ootheca and male flanking 1st Instar larva and ootheca.

Blatta orientalis, female and male flanking an ootheca.
The oriental cockroach exhibits brachyptery (short wingedness), moreso in the female than the male.
Note the large size of the ootheca relative to the female size compared to Periplaneta above.  The coin in all above is a US dime which is approximately 0.7 inches in diameter (= 17.8 mm).

Translation into Polish | Russian translation.

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Page maintained by Joe Kunkel. Copyright(c) 1996. Created: 96/09/17
Updated: 2003/12/01