Morphology of Cockroach Flashcards
(23 cards)
Scientific Name of Cockroach
Periplaneta americana
Phylum of Cockroach
Arthropoda
Class of Cockroach
Insecta
Genus of Cockroach
Periplaneta
Species of Cockroach
americana
Common names of Cockroach
American cockroach
Bombay canary
Ship cockroach
For Periplaneta americana
Common feature in both sexes of Cockroach
Wings are larger than the body
Common names of Cockroach
Oriental cockroach
Black beetle
For Blatta orientalis
Colour, Size, Wings
Features of Blatta orientalis
- Black or dark brown.
- Medium sized.
- Female has rudimentary wings which are not helpful in flight.
- Male has short wings and are not upto the end of the body.
The body of the cockroach is ________
elongated and segmented.
Color of the body of cockroach:
Dark brown or reddish brown.
What is the exoskeleton made up of?
The exoskeleton is thick and hard and made up of chitinous plates called SCLERITES.
The body of a cockroach is divided into ___ segments.
10
The segments on the dorsal side are called __________.
TERGUM
The segments on the ventral side are called __________.
STERNUM
Features of the exoskeleton of cockroaches.
- The exoskeleton is coated with wax impermeable to water.
- Protects the body from loss of water.
- Provides rigidity and surface for attachment of body muscles.
The adjacent segments are joined by __________.
thin, soft and flexible arthrodial membrane.
The body is divisible into?
Head, Thorax, and Abdomen
How many pairs of jointed appendages does a cockroach have?
3 (three)
How many pairs of wings does a cockroach have?
2 (two)
Features of forewings of a cockroach.
- Mesothoracic
- Are called as wing covers, TEGMINA, or Elytra.
- They cover the hindwings and are protective in function.
- Dark, stiff, opaque, and leathery.
Features of hindwings of a cockroach.
- Large, thin, membranous, and transparent.
- Kept folded below the tegmina.
- Used for flying.
What are nervures? What is their function?
- A network of slender and branched tubules, called veins or nervures is spread between the two layers of the cuticle.
- These tubules communicate with haemocoel. Hence, haemocoelomic fluid circulates in these tubules.
- An air tube or trachea and a fine nerve are also present in each nervure.
