Calliphoridae 2/13/08. Family Calliphoridae Blow flies/bottle flies Genera of greatest forensic...
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Transcript of Calliphoridae 2/13/08. Family Calliphoridae Blow flies/bottle flies Genera of greatest forensic...
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CalliphoridaeCalliphoridae2/13/082/13/08
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Family Calliphoridae
Blow flies/bottle flies
Genera of greatest forensic importance
1000 described species
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Adults
10-12 mm long
Usually metallic coloring
Bristles on meron
Plumose arista
2-3 notopleural bristles
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Bristles on Meron
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Bristles on Meron
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Plumose arista
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2-3 notopleural bristles
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Eggs
Deposited on meat, rotting matter
Fecundity: 2000-3000/female over 3 weeks
Hatch with in 24-48 hours
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Larvae
1st instar
Feed near egg mass
Move into less putrid material
3 instars
4 - 21 days
Dispersal
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QuickTime™ and aSorenson Video 3 decompressorare needed to see this picture.
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Pre-Pupae
Disperse--15-20 ft
3 days - 2 weeks
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Pupae
3-20+ days
Coloration changes as pupa ages
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Degree Day
Threshold Temperature
Degree day: Number of degrees above threshold temperature in a given day
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Accumulated Degree Hours
Each developmental stage has degree hour requirement
Rule of thumb: One degree day results when average temperature for the day is 1 degree over threshold minimum
(max T + min T/2)-threshold=degree days
Calculators
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Phormia Regina
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Phormia ReginaBlack Blowfly
Throughout US
Most abundant in early spring and fall
55-75 F
10-25+ day life cycle
Eggs: 12-48 hours (17.4 ADD)
Larvae: 4-15 days (122.5 ADD)
Pupae: 3-13 days (174 ADD)
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Calliphora sp.Blue Bottle Flies
Calliphora vomitoria, Calliphora vicina, Callphora livida
6-14 mm
Metallic blue, blue-green, purple
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Calliphora sp.Blue Bottle Flies
Throughout US
Mostly in cooler months--45-65 F
Shady locations
C. vicina--urban areas
C. vomitoria--rural areas
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Calliphora sp.Blue Bottle Flies
Threshold: approx. 27 C
15-36 days
C. vicina: ~21 days
C. vomitoria ~36 days
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Any Questions?