Arthropoda Flashcards
This louse’s body is dorsoventrally flat. Its head is long and conical with compound eyes and joint
antennae. The mouthparts are designed to pierce and suck host blood; it is composed of a tubular
haustellum that includes teeth at its tip.
Pediculus humanus
This is the most common bedbug in the Philippines
Cimex hemipterus
This genus of mosquitoes is the most common in the country. Females live for up to several months, while
males seldom live more than 8 weeks
Culex spp
This flea has short 3-segmented antennae and has compound eyes. The head can be divided into the frons
and gena. The clypeal region in their mouthparts has a tiny labrum positioned in the anterior region.
Ctenocephalides canis
This is a minute parasite and measures 330-660 µm for females and 200-240 µm by 150-200 µm for
males. All legs of both sexes are equally short, with the 3rd and 4th pairs being so that they do not project
beyond the body’s margin.
Sarcoptes scabiei
CLASS HEXAPODA (INSECTA)
Head, thorax, and abdomen
in Class HEXAPODA The head bears a
Pair of antennae and mandibles, two pairs of maxillae, and has six fused segments.
The thorax is subdivided into 3 segments
each segment bearing a pair of legs; they may or may not possess two pairs of
wings
The abdomen has no ambulatory appendages and is divided into
11 segments
Function of head in arthropoda
houses the mouth and some sensory organs.
Function of Antennae
to touch, smell, and even hear the world( Sensory organ)
Function of mandible
jaws’ They operate in a sideways fashion and are used for gripping, biting, and cutting.
Function of maxilae
used to hold and manipulate food so that it can be chewed or sliced by the mandibles
Function of labium
to channel liquid foods
