Order Blattaria
also known as Blattodea
cockroaches
- Blatta, the Greek for cockroach
- Diagnosis:
- Small to large insects, body flattened; wings reduced in many species
- Flattened dorsoventrally, with head hidden from above, generally dark in color
- Key feature is large shield-like pronotum that covers head
- Mandibulate (chewing mouthparts)
- Compound eyes usually well-developed, 2 ocelli in some
- Antennae very long and filiform
- All legs walking legs (cursorial) with large coxae and 5-segmented tarsi
- Forewing is leathery (called a tegmen); hindwings are membranous and larger than forewings
- Tegmen is shared by most of the orthopteroid groups
- Abdomen has distinct cerci
- Eggs layed in capsule (sometimes kept within body of mother)
Page content last updated 25 October 2003
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