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ENTO 431 Exam 1 Questions and Answers
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ENTO 431 Exam 1 Questions and Answers
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ENTO 431 Exam 1 Questions andAnswers
Forensic entomology - Answer-Interaction between anthropoid science and judicial
system. A specialized area of entomology that emphasizes the collection of information
from insects that may have relevance in legal proceedings.
Major areas of forensic entomology - Answer-Urban: Human environment
Stored Products: Insects in food
Medico-legal: Usually in violent crime
German Cockroach - Answer-Blatella germanica
Most common
2 stripes on pronotum
Winged, rarely flies
Females can produce 35000 offspring in her life
Life cycle of 2-3 months
Brownbanded Cockroach - Answer-Supella longipalpa
Yellow bands across abdomen
Active and often found in homes, apartments, and hotels
Eggs glues to protected areas
Life cycle of 5-12 months
Like starch and have low water needs (live in dry areas)
Difficult to control
American Cockroach - Answer-Periplaneta americana
One of largest common species
Winged, seldom fly
Life cycle of 10-35 months
They are an outdoor species in Texas but come inside for refuge, live under homes,
especially in moist areas (kitchen and bathroom)
Oriental Cockroach - Answer-Blatta orentalis
Can't fly; sluggish
Seasonal: Overwinter as adults, mate in spring, outside for the summer, and are inside
in fall/winter
Like most areas indoors
Decaying organic matter
Females produce <200 offspring
, Smokybrown Cockroach - Answer-Periplaneta fuliginosa
Live outdoors in leaf, etc.
Indoor seasonally
Termites - Answer-Social insects (live in colonies in soil/wood)
Cause structural damage (billions per year)
Fleas - Answer-Small wingless insects
Feed on blood of humans and animals
Most expensive pest for pet owners (~$9 billion per year)
Cat flea most common in Texas
Bed bugs - Answer-Nocturnal feeders which dwell where hosts live (mattress, carpet)
Been around since ancient times
Must take a meal every instar (take 3-10 minutes to feed and then molts to transition to
new instar; 5 instars before being adult)
Kissing bugs (Assassin bugs) - Answer-Family: Reduviidae
Genera: Triatoma and Rhodnius
Spp. Triatoma sanguisuga
Transmit T. cruzi. Found in Pennsylvania to Florida and across the south to California.
Concern in Texas because both the pest and the disease live in the state but thankfully
it is inefficient to transmit disease. Live in walls; disease found in less developed areas.
Nuisance flies - Answer-Present in myiasis, during mortuary neglect
FDA Food detect action levels - Answer-The natural or unavoidable damage and foreign
substance in foods for human use that isn't harmful to humans is acceptable. Levels set
"because it is economically impractical to grow, harvest, or process raw products that
are totally free of non-hazardous, naturally occurring, unavoidable defects"
Challenges presented to the forensic entomologists - Answer-1. Data collected is
usually after the fact: samples are not ideal and usually given in containers (not
collected from site)
2. Three sides to the story: One is the facts (truth), the remaining are the opposing sides
3. Often times it is only the damage seen, not the insects involved: Insect not obtained
(e.g. termite)
4. The lawyer will attempt to "Discredit" you
5. If it goes to court, someone will be angry! A lot of money is usually involved because
only small amounts of cases go to court.
Procedures - Answer-1. Contract for Services
2. Conduct Investigation(s)
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