Mosquito Larvae Head Anatomy

These are strongly modified and transformed into an apparatus called cephalopharyngeal skeleton that is the basic morpho-anatomical structure of this type of larvae. The eyes are generally small simple not compound and are found on either side of the head.

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At this stage of their life cycle the mosquito larvae have a well developed head and float at the surface diving deep when they are disturbed.

Mosquito larvae head anatomy. Johnstons Organ via the movement of hairs on the antennal scape ie. The body of larva is distinguished into head thorax and abdomen. The ganglia and brain connect by a nerve cord.

Keep in mind that compound eyes are made of hundreds sometimes thousands of smaller lenses. The Pilifer this is a unique auditory organ found only in the head of certain species of Hawk Moths of the subfamily Choerocampinae. They have a pair of antennae that may measure up to three times the length of the head.

Mosquitoes have a single pair of wings. Visual observation showed that the heart of resting mosquitoes contracts at a rate of 137 Hz 82 beats per minute and switches contraction direction with 72 of contractions occurring in the anterograde direction toward the head and 28 of contractions occurring in the retrograde direction toward the tip of the abdomen. The head of mosquito larvae is large and sclerotized made of hardened exoskeleton.

3 and 4 have a greatly reduced head completely enclosed into the thorax. The head thorax and abdomen. Inside the pupa the adult mosquito develops either a male or female and the terrestrialaerial adult stage emerges from a split in the back of the pupal skin See Figure a d.

Both of these authors stated that man- The piercing-sucking tools known collectively as the fascicle contain I pair of teeth-bearing maxillary stylets I pair of mandibular stylets a labrum and a hypo- pharynx with its salivary canal. Both male and female mosquitoes have globular heads with compound eyes. Larvae breathe through spiracles located on their eighth abdominal segments or through a siphon so must come to the surface frequently.

The nervous system of the mosquito anatomy comprises of a brain in the head and pairs of nerve centers called ganglia. Its optimum frequency is. The University of Florida UF together with Florida AM University FAMU administers the Florida Cooperative Extension Service.

Auditory Hairs these occur on some Lepidopteran larvae as well as on some Orthoptera. The structure of. It is a developed system responsible for controlling the entire body of the insect.

This helps the mosquito. The head in most insects is enclosed in a hard heavily sclerotized exoskeletal head capsule. The head of a mosquito is round and carries the insects two compound eyes.

CONTENTS Page Introduction I IThelarva 3 Thehead 4 Thefeedingorgans 1 1 Thelabrum 12 Thepreoralcavity 15 Theepipharyngealapparatus 15 Themandibles 16 Themaxillae 17 Thelabiumandhypopharynx 19 Thepharynx 21 Larvalfeeding 22 Thethorax 24 Theabdomen 26 Internalanatomy 31 Thetrachealsystem 31 Thedorsalbloodvessel 32 Thealimentarycanal 32 TheMalpighiantubules 33 Thesalivaryglands 33. They feed on algae bacteria and other microbes in the surfaces microlayer. Anatomy of a Mosquito Larva.

The head is relatively large and somewhat flattened. The shape of the head may be elongate as in Anophelesand Uranotaenia or broad Aedesand Culex. Theyre divided into three basic parts.

The head is crammed with sensory equipment that help the mosquitoes find and feed on people and animals. Anatomy of a Butterfly Anatomy of a Flea Anatomy of a Housefly. University of Florida Institute of Food and Agricultural Sciences Extension outreach is a partnership between state federal and county governments to provide scientific knowledge and expertise to the public.

Larvae swim by utilizing their mouth brushes or by jerking their body giving them the nickname wigglers. The Mosquito Aedes aegypti. They have three body segments comprising Head Thorax and Abdomen.

The mosquito larva has a well-developed head with mouth brushes used for feeding a large thorax with no legs and a segmented abdomen. These antennae are hairy in the female and have a bushy appearance in the male. The ganglia and nerve cord are on the bottom side of the insect body.

Credit by exam that is accepted by over 1500 colleges and universities. But even most unsclerotised or weakly sclerotised larvae tend to have well sclerotised head capsules for example the larvae of Coleoptera and Hymenoptera. The acephalic larvae Figg.

The adult mosquitoes feed mate and the female develops eggs to complete the cycle and begin the next generation. The head bears two eyes two antennae and brush-or comb-like mouthparts. The larva has a large chitinous head which is flattened dorsoventrally it has compound eyes developing and closely behind each is a larval ocellus it has a labrum small toothed mandibles a pair of maxillae with feeding bristles lying internally labial plates and a pair of jointed antennae.

On each lateral side it bears a large compound eye and a small simple eye or ocellus. It remains a retractile capsule that bears the mouthparts. The main exception is in those species whose larvae are not fully sclerotised mainly some holometabola.

Mosquitoes are relatively small insects measuring an average of just more than 6 mm long and weighing about 25 milligrams.

Compound Eye Mosquito Taxonomic Inventory