Exam 2 Spring 2000 Entomology 105
Name ________________________
Second Hour Exam Make-up
March 31, 2000

1. (1 point) Provide the name of an insect that defends itself with osmeterial gland:

2. (1 point) The crab spider, Misumena vatia can change to match the flower petals it rests on. Is this color pattern homotypic, cryptic, or aposematic?

3. (2 points) Classify the following as either primary or secondary defense:
a. homotypism
b. reflex bleeding

4. (1 point) If you have allergies to house dust, why shouldn't you eat insects?

5. (3 points) Name an edible insect from each of the following localities:
a. Japan
b. South Africa
c. Mexico

6. (1 point) What is a witchety grub and where is it eaten?

7. (1 point) Which of the following statements is false?
a. insects are a good source of vitamins
b. insects provide adequate dietary protein
c. insects are low in salt content
d. insects are high in cholesterol

8. (1 point) In terms of efficiency of conversion of ingested food, which kind of meat is more efficient to produce, grasshopper meat or chicken meat?

9. (1 point) In what order can polyembryony be found?

10. (1 point) Name one family of insects that primarily attacks sedentary prey.

11. (1 point) True or false: Parasitoids are frequently encountered in the orders Hymenoptera and Diptera.

12. (1 point) Provide an example of cleptoparasitism:

13. (1 point) Provide an example that proves the following statement false: Due to their small size, insect predators are restricted to killing and consuming invertebrate prey.

14. (2 points) Name two orders in which carnivory is always present:

15. (1 point) True or false: Dissolved oxygen under water is present in higher concentrations than atmospheric oxygen above the water surface.

16. (1 point) Name one holometabolous order in which all immature stages are aquatic:

17. (1 point) Which of the following relies on a tracheal gill for obtaining oxygen?
a. rat-tailed maggot
b. immature mayfly
c. diving beetle
d. aquatic beetle egg

18. (1 point) True or false: The gas present in greatest concentration in a physical gill is nitrogen.

19. (1 point) True or false: Aquatic insect pheromones are highly volatile.

20. (1 point) What is maggot therapy?

21. (1 point) The active component of extracts of Spanishfly acts as a
a. vesicant
b. rubifacient
c. neurotoxin
d. antibiotic

22. (1 point) The active component of extracts of Spanishfly is a chemical called
a. cardenolide
b. cantharidin
c. quinone
d. diamphidiatoxin

23. (1 point) What is malarial therapy (or malariotherapy)?

24. (2 points) What two kinds of chemicals are sequestered by insects from their hostplants?
a. formic acid
b. aristolochic acid
c. cardiac glycosides
d. cantharidin

25. (1 point) In what kind of mimicry system is the model toxic and the mimic palatable?
a. Muellerian
b. Beltian
c. Batesian
d. Mendelian

26. (1 point) True or false: Mycetomes are most often found in species that are parasitic in all life stages.

27. (2 points) Identify two aspects of vertebrate blood that makes it less than ideal as food for insects:


28. (1 point) Provide an example of an insect that is a protelean parasite:

29. (1 point) Siphonaptera are
a. ectoparasitic as immatures and adults
b. endoparasitic as immatures and freeliving as adults
c. freeliving as immatures and ectoparasitic as adults

30. (1 point) Mendel's law of ___________ states that different factors (genes) are inherited independently of each other.

31. (1 point) A change in a gene, either in DNA sequence or location, is called a __________________.

32. (1 point) Name an insect other than Drosophila melanogaster that can be genetically transformed:

33. (1 point) What does "PCR" stand for?

34. (3 points) Identify the theory or concept each individual conceived or popularized:
a. Charles Darwin

b. Charles Lyell

c. Thomas Malthus

35. (1 point) What is the title of the classic flyfishing treatise written by Izaak Walton in 1653?
a. "A Treatyse of Fysshyne with an Angle"
b. "The Compleat Angler"
c. "Flyfishers' Entomology"
d. "A River Runs Through It"

36. (4 points) All of the following flies are based on mayflies; describe the life stage depicted by each type of fly:
a. drake
b. dun
c. humpback
d. spentwing

37. (1 point) What is meant by a "gentleman's hatch"?

38. (1 point) List one trait that is a distinguishing characteristic of Anopheles mosquitoes:

39. (1 point) Who headed up the U.S. Army medical team that investigated causes of yellow fever transmission?
a. Carlos Finlay
b. William Crawford Gorgas
c. Benjamin Rush
d. Walter Reed

40. (2 points) Aedes albopictus first arrived in the U.S. in 1985;
a. where did it come from?

b. how did it get here?

41. (1 point) Where might you find a vasodilator?
a. in the gut of a mosquito
b. in the excrement of a mosquito
c. in the saliva of a mosquito
d. in the eggs of a mosquito

42. (1 point) Where would you not expect to find anopheline mosquitoes?
a. in a salt marsh
b. in a treehole
c. in a fast-flowing stream
d. in a marsh

43. (2 points) List two diseases that are currently transmitted by a mosquito in central Illinois.

44. (2 points) Identify where in the body the following human parasites can be found:
a. Dermatobia hominis
b. Demodex follicularum

45. (1 point) Yersinia pestis is a:
a. virus
b. nematode
c. bacterium
d. protozoan

46. (2 points)
a. What is an inveterate focus?

b. Where is the inveterate focus of bubonic plague?

47. (3 points) Provide the common name for the following fleas:
a. Xenopsylla cheopis
b. Pulex irritans
c. Ctenocephalides felis

48. (1 point) Which of the following is unlikely to harbor fleas?
a. white-tailed deer
b. wolves
c. prairie dogs
d. squirrels

49. (2 points) Complicating malaria control is the fact that, at the same time Plasmodium species have developed resistance to ____________, anopheline mosquitoes have developed resistance to _____________.

50. (1 point) Who first developed a yellow fever vaccine?
a. Patrick Manson
b. Charles Alphonse Laveran
c. Ronald Ross
d. Max Theiler

51. (1 point) Every year, worldwide, how many cases of malaria are reported?
a. 2,000,000
b. 20,000,000
c. 200,000,000
d. 2,000,000,000

52. (1 point) Which of the following life stages of Plasmodium can be found only in mosquitoes?
a. ookinete
b. merozoite
c. microgametocyte

53. (1 point) Plasmodium is a
a. virus
b. protozoan
c. bacterium
d. spirochete

54. (1 point) An alternative to chemical pest control for malarial mosquitoes involves _____________, a microbial product.

55. (1 point) Which of the following diseases have house flies not been implicated in:
a. cholera
b. trench fever
c. dysentery
d. typhoid

56. (1 point) What is meant by "competitive control"?

57. (1 point) Among the odor components of dung to which dung-feeding insects orient is the compound
a. bombykol
b. cholesterol
c. tapazole
d. skatole

58. (1 point) True or false: Hemimetabolous and holometabolous insects are equally well represented in the coprophagous fauna.

59. (1 point) Name one disease other than typhus that is vectored by lice:

60. (2 points) List two symptoms of typhus:


61. (1 point) True or false: Head lice have not yet been shown to be resistant to insecticides.

62. (1 point) Typhus is caused by a
a. virus
b. nematode
c. protozoan
d. rickettsia

63. (1 point) Which of the following attributes DOES NOT characterize species in the order Phthiraptera?
a. wingless
b. heavily sclerotized
c. laterally flattened
d. reduced sensory apparatus

64. (1 point) Which of the following diseases DOES NOT kill its insect host?
a. plague
b. yellow fever
c. typhus

65. (1 point) What contribution did Charles Rothschild make to understanding bubonic plague?
a. identified the bacterium that is the causative agent
b. found bacteria in rats and in flea guts
c. described the flea vector of the pathogen
d. demonstrated that flea bites were responsible for disease transmission

66. (3 points) In what centuries did the first, second, and third pandemics of plague occur?



67. (3 points) Name an insect associated with each of the following stages of decomposition.
a. "fresh"
b. caseic fermentation
c. completely dry

68. (2 points) Larval dermestids (order _____________) can break down ____________, the principal component of hair and feathers.

69. (1 point) Which of the following necrophagous insects larviposits?
a. burying beetle
b. flesh fly
c. hide beetle
d. clothes moth

70. (1 point) When was the first account of forensic entomology written?
a. 3rd century BC
b. 13th century
c. 19th century
d. 20th century

71. (1 point) Provide an example of how DNA analysis can be used in forensic entomology:

72. (1 point) Correct this sentence: Most of the truly necrophagous insects are species in the orders Coleoptera and Hymenoptera.

73. (1 point) Why was the sacred scarab associated with creation and regeneration in ancient Egypt?

74. (1 point) What biocontrol agent was imported from Australia in the nineteenth century to control cottony-cushion scale?

75. (1 point) Tunga penetrans is in the order ________________.

76. (1 point) What, technically speaking, is a cootie?