Lecture 6 Flashcards
Plates and Sites on insect body
Tergite is the dorsal (facing up)
Pleurite is the lateral (or the sides)
Sternite is the ventral (facing down)
Word for plates is sclerites
-Posterior facing the butt, anterior in the back
- median line going vertically down the abdomen
Glands
- Dermal gland duct opening
- Asian citrus psyllid and giant whitefly are both examples of wax deposit producers from gland cells
We can see the head which contains compound eye and mouth parts and antenna
Next the thorax which has three parts, pro, meso, and meta in that order
Third part is the abdomen. At the end of abdomen there are the cercus and ovipositor. Top part of abdomen is tergite and bottom part is sternite.
Neck area is called the cervix and there are two parts of the wing, forewing and hindwing.
Next there is the leg base and wingbase and little spiracles along the mid of body. And finally the actual leg attached to leg base.
*Legs extend from thorax specifically
Head and Mouth
We have frons in the where nose should be. Below that is the Clypeus then Labrum. Gena Is kind of where the cheeck is and manibles below that. Next the Maxillary palp, Maxilla, Labial palp and Labium in that order going down below mandible.
Bees,
Bees have chewing, lapping-sucking mouth parts.
Butterfly
Sucking mouthparts
Mosquito and Fleas and Cicada
Pierce and sucking mouth parts.
Mosquitos have extended mouthpart.
House fly
Sponging mouth parts
Stable Fly
rasping and sponging mouthparts
Stylets
modifed mandibles and maxillae the brown part.
The labium is the long bendy one and labrum is the short one.
Mosquito sucking blood process
- First labium comes out
- 6 sticks, two for needles, 2 for holding, 1 is for guiding to blood and as straw, and final stick spits chemicals to make blood flow better.
Mosquito larvae
They are filter feeder, in the water and channel water for filtering food.
Simple eyes and Compounds Eyes
Pointing to the small black eyes are the simple eyes (ocellus).
Compound eyes are the big ones.
Compounds eyes are for movement, color, and images. Simple eyes for light and dark
Johnston’s organ
Looking at at the antennae, it starts with the scape, then pedicel, then at the end of antennae is a whole bunch of pedicel which we call flagellum. Many types of antennae
Filiform antennae
Thread like, found in more primitive insects (roaches, grass hopper)
Moniliform
Beaded like antennae, found in termites
Capitate
Club-like antennae, enlarged tip, found in beetles
Serrate
saw like antennae, found in beetles
Pectinate
comb like antennae (firefly)
Pectinate
comb-like antennae (firefly)
Flabellate
Fan shaped antennae
Geniculate
Elbowed antennae, ants commonly have these
Plumose
Feathery antennae, moths have these
Aristate
Bristle- like, commonly seen in flies
Main leg parts
We can see it stars with the coxa, then Trochanter, then the big femur, Tibia and Tarsus for last.
Saltatorial
adapted for jumping, big femur. In grasshoppers
Gressorial
Adapted for walking (Tiger beetle)
Cursorial
Adapted for running (cockroach)
Fossorial
Adapted for digging, very congested/short leg, (mole cricket)
Raptorial
Adapted for catching prey; Praying Mantis
Natatorial
Adapted for swimming, notice the Tarsus
