Back to Subject

Unit 6 - Practice Quiz

ENT102 50 Questions
0 Correct 0 Wrong 50 Left
0/50

1 Which family of Lepidoptera is commonly known as the 'Whites and Sulphurs' and is characterized by claws that are usually bifid (forked)?

A. Papilionidae
B. Pieridae
C. Nymphalidae
D. Lycaenidae

2 Larvae of which Lepidopteran family possess a distinct fleshy organ called the osmeterium behind the head, which emits a foul odor when disturbed?

A. Noctuidae
B. Sphingidae
C. Papilionidae
D. Saturniidae

3 Which family of moths typically possess a hearing organ (tympanum) on the metathorax and includes major agricultural pests like armyworms and cutworms?

A. Noctuidae
B. Pyralidae
C. Bombycidae
D. Gelechiidae

4 The larvae of the family Sphingidae are commonly known as hornworms because:

A. They have horn-like antennae.
B. They possess a dorsal horn on the 8th abdominal segment.
C. They have hard, horn-like elytra.
D. They feed exclusively on hornbeam trees.

5 The 'Pink Bollworm' (Pectinophora gossypiella), a serious pest of cotton, belongs to which family?

A. Noctuidae
B. Gelechiidae
C. Pyralidae
D. Arctiidae

6 Which family includes the 'Woolly Bear' caterpillars and adult moths often recognized by bright warning coloration?

A. Arctiidae
B. Bombycidae
C. Sphingidae
D. Pieridae

7 Which of the following families is characterized by having bipectinate (plumose) antennae and vestigial mouthparts in adults, including the Giant Silkworm Moths?

A. Saturniidae
B. Noctuidae
C. Pieridae
D. Gelechiidae

8 The Mulberry Silkworm, Bombyx mori, is the primary member of which family?

A. Saturniidae
B. Bombycidae
C. Pyralidae
D. Sphingidae

9 Members of the family Pyralidae are often referred to as 'Snout Moths' because:

A. Their proboscis is rigid and pierces fruit.
B. They have elongated labial palpi that project forward.
C. The larvae burrow into the snouts of animals.
D. They have a prolonged clypeus.

10 In the order Coleoptera, the forewings are modified into hard, leathery covers called:

A. Tegmina
B. Halteres
C. Elytra
D. Hemelytra

11 Which family of beetles is predominantly predatory and beneficial in agriculture for controlling aphids and scale insects?

A. Chrysomelidae
B. Coccinellidae
C. Scarabaeidae
D. Curculionidae

12 What is the typical tarsal formula for the family Coccinellidae?

A. 5-5-5
B. 4-4-4 (appearing as 3-3-3)
C. 3-3-3
D. 2-2-2

13 The family Chrysomelidae (Leaf beetles) is phytophagous and typically has a tarsal formula described as:

A. Heteromerous (5-5-4)
B. Pseudotetramerous (appears 4-4-4, actually 5-5-5)
C. Monomerous
D. Trimerous

14 Which beetle family is characterized by very long antennae (usually longer than the body) and larvae that are wood borers?

A. Scarabaeidae
B. Cerambycidae
C. Coccinellidae
D. Chrysomelidae

15 Which distinct morphological feature defines the family Curculionidae?

A. The head is prolonged into a snout (rostrum).
B. The hind legs are enlarged for jumping.
C. The antennae are plumose.
D. The elytra are short, exposing the abdomen.

16 The antennae of weevils (Curculionidae) are typically:

A. Filiform
B. Geniculate (elbowed) and clubbed
C. Lamellate
D. Serrate

17 The family Bruchidae (Pulse beetles) is primarily a pest of:

A. Leafy vegetables
B. Stored legumes and seeds
C. Tree bark
D. Roots of grasses

18 Lamellate antennae, where the terminal segments expand into plate-like structures, are diagnostic of which beetle family?

A. Cerambycidae
B. Scarabaeidae
C. Curculionidae
D. Coccinellidae

19 White grubs, which are C-shaped larvae feeding on plant roots, belong to which family?

A. Coccinellidae
B. Scarabaeidae
C. Bruchidae
D. Tachinidae

20 The suborder Symphyta (Sawflies) differs from Apocrita (Bees, Ants, Wasps) in Hymenoptera by:

A. Having a broadly joined thorax and abdomen (no 'wasp waist').
B. Lacking wings entirely.
C. Being exclusively aquatic.
D. Having piercing-sucking mouthparts.

21 Which Hymenopteran family consists of 'Sawflies', whose females have a saw-like ovipositor used to slit plant tissue?

A. Apidae
B. Tenthredinidae
C. Braconidae
D. Ichneumonidae

22 In the family Apidae (e.g., Honey bees), the hind tibia of workers is modified into a:

A. Corbicula (pollen basket)
B. Raptorial leg
C. Fossorial leg
D. Tympanum

23 Which family contains minute egg parasitoids widely used in biological control programs (e.g., against lepidopteran pests)?

A. Ichneumonidae
B. Trichogrammatidae
C. Vespidae
D. Apidae

24 The 'Horse-head' cell in the wing venation is a characteristic feature of which parasitoid family?

A. Braconidae
B. Ichneumonidae
C. Chalcididae
D. Apidae

25 Which morphological feature primarily distinguishes Braconidae from Ichneumonidae?

A. Braconids lack the second recurrent vein (2m-cu) in the forewing.
B. Braconids have clubbed antennae.
C. Braconids have only one pair of wings.
D. Braconids are strictly phytophagous.

26 The family Chalcididae is characterized by:

A. Greatly enlarged and toothed hind femora.
B. Long, filiform antennae longer than the body.
C. A sponging proboscis.
D. Elytra covering the abdomen.

27 In Hymenoptera, the hamuli are:

A. Sensory organs on the antennae.
B. Small hooks on the hindwing that couple it to the forewing.
C. Mouthparts used for lapping nectar.
D. The stinging apparatus.

28 Which Dipteran family includes the Gall Midges?

A. Muscidae
B. Cecidomyiidae
C. Syrphidae
D. Tachinidae

29 The Hessian fly (Mayetiola destructor), a major pest of wheat, belongs to the family:

A. Cecidomyiidae
B. Agromyzidae
C. Tephritidae
D. Culicidae

30 Flies in the family Tachinidae are primarily important in agriculture because:

A. They are serious pests of fruit.
B. They transmit human diseases.
C. They are parasitic on other insects, serving as natural enemies.
D. They produce honey.

31 A distinct morphological feature of Tachinidae that distinguishes them from house flies (Muscidae) is:

A. A well-developed post-scutellum causing a bulge beneath the scutellum.
B. Spotted wings.
C. Plumose antennae.
D. Absence of halteres.

32 The family Agromyzidae is commonly known as:

A. Fruit flies
B. Leaf miner flies
C. House flies
D. Mosquitoes

33 Which family of Diptera is characterized by having scales on the wing veins and margins, and long proboscis?

A. Muscidae
B. Culicidae
C. Tephritidae
D. Tachinidae

34 In male mosquitoes (Culicidae), the antennae are:

A. Plumose (feathery)
B. Pilose (sparse hairs)
C. Clavate (clubbed)
D. Geniculate (elbowed)

35 The House Fly (Musca domestica) belongs to the family:

A. Calliphoridae
B. Muscidae
C. Sarcophagidae
D. Drosophilidae

36 The arista (bristle on the antenna) of the family Muscidae is typically:

A. Bare
B. Plumose to the tip
C. Plumose only on the dorsal side
D. Absent

37 Which family contains the 'Fruit Flies' (e.g., Bactrocera, Ceratitis), which are major quarantine pests causing damage to fruits?

A. Drosophilidae
B. Tephritidae
C. Agromyzidae
D. Muscidae

38 A diagnostic feature of the wing venation in Tephritidae is:

A. The subcostal vein bends forward at a right angle and fades before reaching the costa.
B. The wings are covered in scales.
C. There is a 'horse-head' cell.
D. The wings are reduced to halteres.

39 What is the modified hind wing structure in Diptera called, which functions as a gyroscopic organ?

A. Elytra
B. Haltere
C. Tegmina
D. Hamuli

40 Lepidopteran larvae typically have prolegs on abdominal segments:

A. 1, 2, 3 and 10
B. 3, 4, 5, 6 and 10
C. None (they are apodous)
D. Every abdominal segment

41 The hooks present at the tip of the prolegs in Lepidoptera larvae are called:

A. Crochets
B. Ungues
C. Pulvilli
D. Arolium

42 Which of the following is a characteristic of the family Papilionidae regarding their legs?

A. Forelegs are reduced and useless for walking.
B. All three pairs of legs are fully developed and fit for walking.
C. Hind legs are modified for jumping.
D. Tarsi are 3-segmented.

43 The epipleura (bent-under lateral edge of elytra) is wide in which beetle family, often associated with a hemispherical body shape?

A. Cerambycidae
B. Coccinellidae
C. Elateridae
D. Staphylinidae

44 The larval type of House flies (Muscidae) and Fruit flies (Tephritidae) is described as:

A. Campodeiform
B. Scarabaeiform
C. Acephalous (maggot)
D. Eruciform

45 Trichogrammatidae are notable for their tarsi, which are:

A. 5-segmented
B. 3-segmented
C. 1-segmented
D. Absent

46 Which family of Lepidoptera includes the 'Diamondback Moth' (Plutella xylostella), a major pest of crucifers?

A. Plutellidae (often grouped near/in Yponomeutidae, closely related to Gelechiidae in context)
B. Papilionidae
C. Saturniidae
D. Sphingidae

47 Within Noctuidae, larvae that lack the first two pairs of prolegs and move in a looping motion are often called:

A. Wireworms
B. Semiloopers
C. Maggots
D. Grubs

48 The 'Rice Weevil' (Sitophilus oryzae) belongs to the family:

A. Tenebrionidae
B. Curculionidae
C. Bruchidae
D. Scarabaeidae

49 Which Hymenopteran family is known for having a propodeum (first abdominal segment fused to thorax)?

A. All Apocrita (Apidae, Ichneumonidae, Braconidae, etc.)
B. Only Symphyta (Tenthredinidae)
C. Only Diptera
D. Only Coleoptera

50 Members of the family Cerambycidae are structurally adapted to their habit of wood-boring by having:

A. Strong mandibles
B. Sponging mouthparts
C. Raptorial forelegs
D. Siphoning proboscis
Previous MCQ
Unit 5