UNIT 2

Question 1

Types of Insect Antennae

Threadlike segments

Answer 1

Filiform

Question 2

Types of Insect Antennae

Bead-like segments

Answer 2

Moniliform

Question 3

Types of Insect Antennae

Bristle-like, segments taper distantly

Answer 3

Setaceous

Question 4

Types of Insect Antennae

Saw-like

Answer 4

Serrate

Question 5

Types of Insect Antennae

Leaf-like

Answer 5

Lamellate

Question 6

Types of Insect Antennae

Clubbed segments, gradually increase in diameter distally

Answer 6

Clavate

Question 7

Types of Insect Antennae

Comb-like

Answer 7

Pectinate

Question 8

Types of Insect Antennae

Having a head, terminal segments are usually enlarged

Answer 8

Capitate

Question 9

Types of Insect Antennae

Elbowed, the first segment is long, following segments are small and form an angle.

Answer 9

Geniculate

Question 10

Types of Insect Antennae

The last segment enlarged and
bears a conspicuous dorsal bristle

Answer 10

Aristate

Question 11

Types of Insect Antennae

Feathery, most segments with
whorls of long hair

Answer 11

Plumose

Question 12

Types of Insect Antennae

The last segment with an
elongated terminal

Answer 12

Stylate

Question 13

Types of Insect Mouthparts

The mandibles cut off and grind solid food, the maxillae and labium push it into the esophagus.

Answer 13

Mandibulate

Question 14

Types of Insect Mouthparts

The mandibles are produced in sharp blades, and the maxillae into long probing style.

Answer 14

Cutting-Sponging Type

Question 15

Types of Insect Mouthparts

The mandibles and maxillae are non-functional and the remaining parts form a proboscis with a sponge-like apex called LABELLA.

Answer 15

Sponging Type

Question 16

Types of Insect Mouthparts

The mandibles and labrum are chewing type and are used to grasping prey, molding wax or nest material.

Answer 16

Chewing-lapping Type

Question 17

Types of Insect Mouthparts

The mouthparts of this group are modified to pierce tissuesand suck juices from them.

Answer 17

Piercing Sucking Type

Question 18

Types of Insect Mouthparts

The food either nectar or liquid food already are sucked up by means of long proboscis composed only of a united galea of each maxillae.

Answer 18

Siphoning Type

Question 19

Types of Insect Mouthparts

Has a cone-shaped beak formed from clypeus labrum, parts of maxillae and labium.

Answer 19

Rasping-Sucking Type

Question 20

is the outer layer of insects and bends inwards at various points to form supporting ridges or braces.

Answer 20

INTEGUMENT

Question 21

The 3 layers of the Body Wall

Answer 21

1. Epidermis
2. Cuticle
3. Basement Membrane

Question 22

Cellular layer of the body wall; secretes molting fluid involved in the growth process.

Answer 22

EPIDERMAL CELL

Question 23

Non-cellular layer of the body wall.

Covers the entire body surface and also lines the insects’ air tube lining, salivary glands and parts of digestive tracts.

Answer 23

CUTICLE

Question 24

3 Layers of the Cuticle

Answer 24

1. Epicuticle
2. Exocuticle
3. Endocuticle

Question 25

Separates the body wall with the internal organ.

Answer 25

BASEMENT MEMBRANE

Question 26

Comprises the globular to capsule like anterior body segment of an insect which bears the eyes, antennae and mouthparts.

Answer 26

HEAD

Question 27

# Regions of the Insect Head The anterior part of the head.

Answer 27

FRONS

Question 28

# Regions of the Insect Head The anterior area below the dorsum of the head, between and behind the eyes.

Answer 28

VERTEX

Question 29

# Regions of the Insect Head The area below the compound eye, on the side of the head.

Answer 29

GENA

Question 30

# Regions of the Insect Head The lip-like sclerite.

Answer 30

CLYPEUS

Question 32

# Classification of Insect Head Conditon wherein the mouthparts are at the right angle to the body axis.

Answer 32

HYPOGNATHOUS HEAD

Question 33

# Classification of Insect Head Condition wherein the mouthparts are projecting backwards between the legs.

Answer 33

OPISTHOGNATHOUS HEAD

Question 34

# Classification of Insect Head Mouthparts line in the body axis. Usually found in carnivorous or forms that burrow in wood or soil. Classification of Insect Head

Answer 34

PROGNATHOUS HEAD

Question 35

# Insect Mouthparts Tooth-like structure used for chewing, grinding, teaaring or pincing-off solid food. Heavily sclerotized, paired and unsegmented

Answer 35

MANDIBLES

Question 36

# Insect Mouthparts Helps in putting the food into the mouth. paired segmented structure used for mastication and lie directly behind the mandibles.

Answer 36

MAXILLAE

Question 37

# Insect Mouthparts ‘Upper lip’ found posterior to the maxillae.

Answer 37

LABRUM

Question 38

# Insect Mouthparts ‘Lower lip’ found posterior to the maxillae.

Answer 38

LABIUM

Question 39

# Insect Mouthparts Central tongue-like that drops from the membranous floor of the head, and bears the opening of salivary duct.

Answer 39

HYPOPHARYNX