Exam 1--2000 Entomology 105--Insects and People
First hour exam
February 18, 2000

1. In the scientific name Enema pan,
a. what taxonomic unit is designated by pan?
b. what taxonomic unit is designated by Enema?

2. The scientific name of the spider Mastophora dizzydeani is an example of
a. an eponym
b. a patronym
c. a synonym
d. a pseudonym

3. The proper name to write the scientific name of the American cockroach is
a. Periplaneta americana
b. Periplaneta Americana
c. Periplaneta americana
d. periplaneta americana

4. Fill in the blanks for the taxonomic hierarchy:
Kingdom, ___________, ___________, Order, __________, Genus, Species

5. What ending characterizes family names of insects?
a. idae
b. optera
c. aceae
d. inae

6. The grouping of arthropod body segments into functional regions is called ___________.

7. There are three mistakes in the following paragraph. Find them and correct them.

The Phylum Arthropoda is characterized by radial symmetry and a closed circulatory system.

Reproduction is generally sexual and a single nerve cord runs ventrally along the length of the


8. Which class of arthropods is characterized by
a. no pairs of antennae? ___________
b. a single pair of antennae? __________
c. two pairs of antennae? ____________

9. The order Dictyoptera includes among its members cockroaches and
a. termites
b. grasshoppers
c. walkingsticks
d. praying mantids

10. Species in which order rely on symbiotic microbes for production of cellulase?
a. Thysanura
b. Homoptera
c. Isoptera
d. Phasmida

11. Name an order in which ALL species are phytophagous: ______________.

12. In which of the following orders are many species characterized by saltatorial hind legs?
a. Orthoptera
b. Dermaptera
c. Psocoptera
d. Collembola

13.Circle in the number of walking legs for each of the following classes:

Arachnida 3 4 More than 4
Diplopoda 3 4 More than 4
Insecta 3 4 More than 4
Chilopoda 3 4 More than 4

14. What is ecdysis?

15. In what part of the cuticle is the wax layer found?
a. endocuticle
b. exocuticle
c. epicuticle
d. procuticle

16. True or false: The carbohydrate component of insect cuticle is called sclerotin.

17. Which of the following is NOT an example of an endopterygote order?
a. Hymenoptera
b. Orthoptera
c. Lepidoptera
d. Diptera

18. In what type of development is a pupal stage found?
a. holometabolous
b. hemimetabolous
c. paurometabolous
d. hypermetabolous

19. Oxygen enters the body of an insect through openings called
a. imaginal disks
b. tracheae
c. spiracles
d. ocelli

20. Attribution of human traits to animals is called _________________.

21. Specialized cuticular structures equipped with neurons are called ____________.

22. Provide an example of each of the following types of learning behavior:
a. habituation
b. latent learning
c. conditioning

23. The tendency of moths to fly into a flame is an example of
a. primary transverse orientation
b. secondary transverse orientation
c. positive rheotaxis
d. negative rheotaxis

24. A single uit of a compound eye is called an:
a. ocellus
b. ocelli
c. ommatidium
d. ommatidia

25. Which of the following insects stridulate?
a. deathwatch beetle
b. cricket
c. firefly
d. honey bee

26. Describe the function of the following enzymes and name an insect that produces them:
a. luciferase

b. keratinase

27. Worker bees display polyethism based on
a. size
b. morphology
c. age
d. time of day

28. In which of the following orders are eusocial species NOT known?
a. Hymenoptera
b. Plecoptera
c. Isoptera
d. Homoptera

29. True or false: Workers outnumber drones in a honey bee colony.

30. Which of the following is NOT a defining characteristic of eusociality?
a. reproductive division of labor
b. cooperative brood care
c. maintenance of a microbial symbiont
d. overlap of generations

31. Invertase is
a. the enzymes used by bees to convert sucrose into glucose and fructose
b. the enzyme used by bees to manufacture wax
c. the main constituent of propolis
d. the enzyme used by bees to digest pollen

32. What is mead?

33. How long has the movable frame hive been in use?
a. 8,000 years
b. 2000 years
c. 800 years
d. between 100 and 200 years

34. Beeswax is
a. a secretion produced by glands located in the bee's head
b. a secretion produced by glands located in the bee's abdomen
c. a material prepared by bees with tree resin
d. collected from flowers and then worked into cells by bees.

35. Animals other than insects that can pollinate plants include

36. Define "pseudocopulation."

37. The chief insect pollinator of Theobroma cacao, the chocolate tree, is a species in the order
a. Hymenoptera
b. Diptera
c. Coleoptera
d. Lepidoptera

38. Flowers with fetid odors and purplish flowers are most likely pollinated by species in the order
a. Hymenoptera
b. Diptera
c. Coleoptera
d. Lepidoptera

39. Puddling by butterflies is a solution to a nutritional deficiency of
a. sodium
b. protein
c. water
d. fiber

40. Gypsy moths are reported to feed on over 300 species of plants. They can be considered
a. monophagous
b. oligophagous
c. polyphagous
d. polygamous

41. Which plant fluids are consumed by aphids?
a. phloem
b. resin
c. xylem
d. nectar

42. What is honeydew?

43. Which of the following mortality factors is density-dependent?
a. fire
b. hurricane
c. flood
d. disease

44. Identify two characteristics that distinguish Schistocerca gregaria var gregaria from S. gregaria var. solitaria:

45. What chemical cues are known to promote the appearance of gregarious locusts?

46. Louis Pasteur identified the causative agent of pebrine, a microbial disease of ____________.

47. List two properties of silk that make it such a desirable fiber:

48. Silk consists of two materials--the inner proteinaceous layer is called ________.

49. What commercial product is obtained from the salivary glands of Bombyx mori?

50. Sericin is
a. the proteinaceous material that crosslinks with chitin in cuticle.
b. the material used by bees to seal cracks in their hive
c. the resinous material produced by kermes scale
d. the gummy outer coating of silk

51. Leafhoppers, treehoppers, and planthoppers are members of which suborder of Homoptera--Auchenorrhycha or Sternorrhyncha?

52. Plant diseases transmitted by homopterans are of two types--stylet-borne and ____________.

53. What type of insect is a vector for Pierce's disease?
a. aphid
b. beetle
c. leafhopper
d. cicada

54. Which of the following is NOT a property that characterizes lac?
a. electrical conductance
b. biodegradability
c. thermoplasticity
d. all of the above properties characterize lac

55. Which of the following plants is host to Dactylopius coccus?
a. fig trees
b. prickly pear cactus
c. tamarisk tree
d. oak tree

56. List one contemporary use for cochineal:

57. In which two orders are the majority of gall-formers found?

58. The gallforming insect that almost destroyed the French wine industry in the nineteenth century was
a. pamakani gall fly
b. madapple gall
c. phylloxera
d. Aleppo gall

59. What gall-derived material, when combined with iron salts, forms a blue-black precipitate that can be used for making ink? _______ ________.

60. Define "inquiline."

61. List one anatomical trait that characterizes gallmaking insects in general:

62. List one anatomical or physiological adaptation of stored product pests in general:

63. Classify the following insects as either primary or secondary pests:
a. pea weevil
b. Mediterranean flour moth

64. What is the worth health risk posed by cockroach infestation?
a. transmission of dysentery
b. nibbling of fingernails, toes, and hair in sleeping people
c. production of allergens
d. mental anguish caused by entomophobia

65. Name a stored product pest that affects products of animal, rather than plant, origin:

66. How are aggregation pheromones used in stored product insect control?

67. What domiciliary species of cockroach was introduced into the U. S. in the mid-1980s?
a. Blattella germanica
b. Blatta orientalis
c. Blattella asahinai
d. Periplaneta australasiae

68. What is the substance workers feed to a grub to raise a queen?

69. Honey bee societies are made up of three castes: these are

70. Most substances in honey are health-promoting; name two types of substances that can potentially cause industry:

80. List two ways, other than in baking, that honey is used commercially today:

81. The economic value of bee pollination in the U.S. each year is on the order of
a. one million dollars
b. 100 million dollars
c. one billion dollars
d. ten billion dollars

82. What structures are used by honey bees to carry pollen?

83. List two characteristics of plants that make them less than ideal food for insects:

84. Define "frass."

85. List three ways artificial selection has altered the biology of crop plants: