Order Blattaria (ppt) Flashcards
Characteristics of Cockroaches
- oldest and most primitive of insect
- omnivorous feeding behaviour
- unspecialized chewing mouthpart
- indication of poor sanitation or sub
standard housekeeping - serve as intermediate host
Give 5 families of Cockroaches
- Blattidae
- Blatellidae
- Blaberidae
- Cryptocercidae
- Polyphagidae
Commonest cockroach in most countries
Blatella germanica “croton bug”
almost black about 25 mm and its wings in males do not reach the tip of the abdomen while female wings are vestigial
Blatta orientalis
Most common indicator of cockroach
infestation
egg cases (oothecae)
eggs of blattaria develop in
genital chamber
how many maxillary and labial does a cockroach have
5 m. and 3 l.
where are antennae located in cockroaches
below the middle compound eyes
Macropterous
well developed in winged
species
Brachypterous
lacking in species with
reduced wings
Apterous
lacking wings altogether
Characteristics of front wings in adults
- hardened and translucent
- well defined veins
Characteristics of hind wings in adults
- membranous and larger
Asian Cockroach SN
Blatella asabinai
German Cockroach
Blatella germanica
Brown banded Cockroach
Supella longipalpa
Smoky Brown Cockroach
Periplaneta fuliginosa
Brown Cockroach
Periplaneta brunnea
Australian Cockroach
Periplaneta australiasiae
American Cockroach
Periplaneta americana
Oriental Cockroach
Blatta orientalis
Prevention and Control
- Organophosphates, carbamates, pyrethrins, pyrethroids
- Insect growth regulators
- Juvenile hormone analogs
- Chitin synthesis inhibitor
- Integrated pest management
arises from the sternum of the 9th abdomen to distinguish males from females
styli
aids on walking on smooth surfaces
arolium
present on tarsomeres 1-4
Pulvilli
have small hairs, sensitive for vibrations caused by slow frequency sound and air movements, initiate “escape response”
Caudal cerci
heavily spined defense against predator
Tibiae
long segments of legs function
aid in running faster
