Why Do Blowflies Survive

Introduction

The blowfly goes through a complete metabolic change in body form at each stage in their life.

- Stage 1 - Egg
- Stage 2 - Larvae
- Stage 3 - Pupa
- Stage 4 - Adult

Adult -- Blowflies are a group ranging from 6 to 14 mm in length. The black Blowfly has a dark, olive-green body, black legs, and orange pubescence around the spiracles. All Blowflies have blunt mouthparts and do not bite.
Egg -- The white or pale yellow eggs of Blowflies may occur in small batches or large masses. Individual eggs are about 1.5 mm long.
Larvae -- These white to yellowish maggots have pointed heads. They develop through three instars and become 12 to 18 mm long when fully grown.
Pupa -- Blowfly pupa are encased in light brown to black puparia (the tough, hardened skins). Each puparium is 9 to 10 mm long and 3 to 4 mm wide.
The larvae is the main feeding stage of the fly. There are 3 inistars. On hatching, first-instar larvae are roughly 2 mm long, growing to about 5 mm before shedding their skin. The second instar larvae grow to around 10 mm before they shed their skins to become third-instar larvae. Third-instar larvae grow to between 15 mm and 20 mm.

Hypothesis for Experiment 1

My hypothesis is I need to investigate the behavior of Blowfly Larvae in different light conditions. In this experiment I will be seeing how the larvae react to a direct light source from above.

The Equipment that was used in Experiment