1. Calliphoridae
2/13/08

2. Family Calliphoridae Blow flies/bottle flies
Genera of greatest forensic importance
1000 described species

3. Adults 10-12 mm long Usually metallic coloring Bristles on meron
Plumose arista
2-3 notopleural bristles

4. Bristles on Meron

5. Bristles on Meron

6. Plumose arista

7. 2-3 notopleural bristles

10. Eggs Deposited on meat, rotting matter
Fecundity: /female over 3 weeks
Hatch with in hours

12. Larvae 1st instar Feed near egg mass Move into less putrid material
3 instars
days
Dispersal

16. Pre-Pupae
Disperse ft
3 days - 2 weeks

17. Pupae
3-20+ days
Coloration changes as pupa ages

19. Degree Day Threshold Temperature
Degree day: Number of degrees above threshold temperature in a given day

20. 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

21. Phormia Regina

22. Phormia Regina Black Blowfly
Throughout US
Most abundant in early spring and fall
55-75 F
day life cycle
Eggs: hours (17.4 ADD)
Larvae: 4-15 days (122.5 ADD)
Pupae: 3-13 days (174 ADD)

23. Calliphora sp. Blue Bottle Flies
Calliphora vomitoria, Calliphora vicina, Callphora livida
6-14 mm
Metallic blue, blue-green, purple

24. Calliphora sp. Blue Bottle Flies
Throughout US
Mostly in cooler months F
Shady locations
C. vicina--urban areas
C. vomitoria--rural areas

25. Calliphora sp. Blue Bottle Flies
Threshold: approx. 27 C
15-36 days
C. vicina: ~21 days
C. vomitoria ~36 days

26. Any Questions?