Cimex lectularius bed bug taking a blood meal.

Chicago, Illinois, USA
A bed bug nymph probes for a good feeding spot.  Note the flattened shape of the bug that allows it to fit into tight hideaways during the day.

Chicago, Illinois, USA
Cimex lectularius adult feeding.  Notice how the labium (the sheath surrounding the stylets) folds back to allow the bedbug's piercing/sucking mouthparts to sink deeper into the victim's skin.  

Chicago, Illinois, USA
Cimex lectularius bed bug nymph taking a blood meal. 

Chicago, Illinois, USA
The swollen body of this bed bug nymph indicate that it is most of the way through a blood meal.

Chicago, Illinois, USA
Cimex lectularius, the common bed bug.

Chicago, Illinois, USA
The swollen body of this bed bug nymph indicate that it is most of the way through a blood meal.

Chicago, Illinois, USA
An Aedes triseriatus eastern treehole mosquito takes a blood meal.  Illinois.

filename: triseriatus14
An Aedes triseriatus eastern treehole mosquito takes a blood meal. Illinois.

filename: triseriatus14
An Aedes triseriatus eastern treehole mosquito takes a blood meal.  Illinois.

filename: triseriatus14
An Aedes triseriatus eastern treehole mosquito takes a blood meal. Illinois.

filename: triseriatus14
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all images and text © Alex Wild 2001-2013