Cluster fly (Pollenia sp.)

Cluster fly (Pollenia sp.)

Description

Title:
Cluster fly (Pollenia sp.)
Caption / Description:

The cluster flies are the genus Pollenia in the blowfly family Calliphoridae. Unlike more familiar blowflies such as the bluebottle genus Phormia, they do not present a health hazard because they do not lay eggs in human food. They are strictly parasitic on earthworms; the females lay their eggs near earthworm burrows, and the larvae then infest the worms.

However, the flies are a nuisance because when the adults emerge in the late summer or autumn they enter houses to hibernate, often in large numbers; they are difficult to eradicate because they favour inaccessible spaces such as roof and wall cavities. They are often seen on windows of little-used rooms. They are also sometimes known as attic flies.

The typical cluster fly Pollenia rudis is about 7 mm long and can be recognised by distinct lines or stripes behind the head, short golden-coloured hairs on the thorax, and irregular light and dark gray areas on the abdomen. Cluster flies are typically slow moving.

Cluster flies have a widespread distribution. Six species are found in Britain and thirty one in Europe. Pollenia species are also and numerous in Australia and New Zealand (over 30 spp); they are a common pest in North America. P. rudis has spread widely in association with humans.

Description taken from Wikipedia: http://en.wikipedia.org/wiki/Pollenia

Tags / Keywords:
  • Biota
  • Life
  • Vitae
  • Eukaryota
  • Animalia
  • Animals
  • Arthropoda
  • Arthropods
  • Insecta
  • Insects
  • Diptera
  • Flies
  • Calliphoridae
  • Blow flies
  • Cluster flies
  • Pollenia

Admin

Date Original Photo Taken:
Original File Name:
_MG_4726.CR2
Event:
Rating:
Date this image added/last updated on website:
Original File Dimensions:
4272px x 2848px
File Type:
JPEG
Color Mode:
RGB
Original Image Color Profile:
Adobe RGB (1998)

Location

Location Created:
Sublocation:
City:
Market Harborough
Province/State:
Leicestershire
Country:
United Kingdom
World Region:
Europe
Geo-location:

Rights

Copyright Status:
Copyrighted
Licensing Status:
Rights Managed
Available for Editorial Use:
Yes
Available for Commercial Use:
Yes
Copyright Notice:
© 2010 Dave Kennard

Camera Data

Date Digital Resource was created:
Shutter speed:
1200 s
Aperture:
f/8
Camera Model:
Canon EOS 450D
ISO:
100
Exposure Compensation:
0
Focal Length:
65mm
Focal Length (35mm equiv.):
Metering Mode:
Multi-segment
Flash:
On, Fired
Exposure Mode:
Manual
White Balance:
Manual
Light Source:
Exposure Program:
Manual

Additional shooting metadata

Lens:
Canon MP-E 65mm F2.8 1-5x Macro
Filters used:
Additional Optics used:
Setup:
Handheld
Canon MT-24EX Macro Twin Flash with home-made concave diffusers

Post Processing

Image Modified:
Software used:
  • Adobe Camera RAW
Post Processing: