Lecture 11 - Insect Diversity, the Insect Orders

Question 1

Thysanura (silverfish)

Answer 1

thorax not arched
eyes not contiguous
abdominal apex with 3 long tail-like appendages

Question 2

Ephemeroptera (mayflies)

Answer 2

wings roof-like above body
2 slender abdominal apprendages
2 wing pairs
windwings may be reduced

Question 3

Odonata (dragonflies, damselfies)

Answer 3

2 pairs of wings elongate and net-veined
abdomen long and slender
thorax box like
andtennae very small and bristle-like

Question 4

Orthoptera (crickets, grasshoppers, katydids)

Answer 4

4 wings or wingless
forewings thickened
hindwing fan-like
jumping hindlegs
chewing motuthparts

Question 5

Mantodea (mantids)

Answer 5

all stages predators
front legs raptorial
2 wing pairs
hindwing fan-like
prothorax elongate

Question 6

Blattaria (cockroaches)

Answer 6

wings folded over back
body somewhat oval and flattened from top to bottom
threat-like antennae
head concealed below pronotum

Question 7

Isoptera (termintes)

Answer 7

4 identical wings
soft bodied
chewing mouthparts
feed on wood

Question 8

Dermaptera (earwigs)

Answer 8

cerci large and forceps-like
forewings short and pad-like
hindwings coiled up beneath forewings

Question 9

Plecoptera (stoneflies)

Answer 9

2 large cerci
4 wings folded over back
hindwing fan-like
featherly gills on thorax and base of abdomen

Question 10

Psocodea (true lice)

Answer 10

blood-feeder on mammals and birds
wingless
flattened insects
chewing and sucking mouthparts

Question 11

Hemiptera (true bugs, cicadas)

Answer 11

tubular sucking parts
wings folded flat over back
forewings leatherly

Question 12

Thysanoptera (thrips)

Answer 12

small, long slender insects
wings narrow and fringed
mouthparts asymmetrical

Question 13

Neuoptera (lacewings, antlions)

Answer 13

4 wings roof-life over back
chewing mouthparts
antennae long and thread like

Question 14

Coleoptera (beetles)

Answer 14

forewings hardened, protective shell over back

only hindwings used in flight

Question 15

Siphonaptera (fleas)

Answer 15

laterally flattened
wingless blood feeding parasites on mammals and birds
eyes tiny or absent
sucking mouthparts

Question 16

Diptera (flies)

Answer 16

1 pair of wings on mesothorax

large eyes

Question 17

Lepidoptera (butterflies, moths)

Answer 17

large wings held above body at rest
covered with scales
tubular
sucking mouthparts
antennae thread like

Question 18

Hymenoptera (wasps, sawflies, ants, bees)

Answer 18

4 wings
narrow “waist”
long ovipositor or sting in females