Introduction to Diagnostic Medical Parasitology
Cimicidae
Virtual Microscope
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Morphology
- Oval
- Wingless insects
- Approximately 5-7 mm in length
- Dorso-ventrally flattened
- Short head
- Prominent pair of eyes
- Both males and females feed on the blood of sleeping individuals
There are two important species:
- Cimex lectularius (found in both tropical and non-tropical regions)
- Cimex hemipterus (primarily found in tropical regions)
Life cycle
- Insect: Three part body (head/thorax /abdomen) and 6 legs
- Dorso-ventrally flattened, size 6 mm
- Wingless
- Rostrum („beak“ or stylet) is crossed underneath
- They undergo hemimetabolous development
- 5 nymphal stages
- One cycle lasts for 6-10 weeks
- Are considered "household pests"
- In laboratory conditions, adult individuals can survive for up to 4 years
- They can spread in furniture, etc.
- All stages are blood feeder
Diseases
- Not important vectors but annoying, infestations are increasing in many areas
- Nuisance (allergic reaction possible)