Sensory Structures in Insect Biology

Dorsoventral flattening of the body is common among endoparasites.

Fleas have dorsoventral flattening of the body.

Chewing-type mouthparts are commonly found in arthropods that feed directly on host tissues.

Arthropods that are solenophages typically leave visible evidence of skin puncture at the bite site.

Mosquitoes have elongated fascicle, labium, maxillae, mandibles, and hypopharynx forming a feeding apparatus called the proboscis.

The labium in mosquitoes serves as the main structure for piercing the host's skin and delivering saliva.

Fleas have long, protruding antennae that are used for detecting chemicals emanating from the skin of their hosts.

Mosquitoes are attracted to substances like carbon dioxide, lactic acid, and estrogen as part of their sensory adaptations.

Trichobothria are commonly found in mosquitoes and flies, aiding them in detecting vibrations in the air and on surfaces.

Ticks have specialized sensory organs called Haller's organs located on their abdomen.

The basal segment forms Johnston's organ in mosquitoes, which is specialized for detecting temperatures.

Sensory receptors near the tip of the proboscis in bed bugs are used to detect capillaries beneath the surface of the skin.

Ticks have sucker-like empodia on their hind legs to secure themselves to hosts.

Fleas have modified forelegs with enlarged claws for grasping and holding onto the host skin.

Bed bugs have styletiform maxillae and mandibles held within a sheathlike segmented labium for piercing-sucking feeding.

Lice have labrum forming a haustellum with prestomal teeth used to anchor mouthparts to host tissues.

The epipharynx of fleas is inserted into a capillary during feeding.

Mites use their hindlegs with el scales for clasping and holding onto smooth surfaces of the host's body.