Page 1 of 7

Investigation of the Behavior of Blowfly Larvae

Continues for 6 more pages »
Read full document

Investigation of the Behavior of Blowfly Larvae

  • By
  • October 2006
  • 1903 Words
  • 1627 Views
Page 1 of 7
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. In my investigation I will be only working with larvae (Stage 2 in the cycle). 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 1

-10 Blowfly larvae
-Simple choice chamber
-See-through lid for choice chamber
-A circle with a pencil line down the middle
-Stopwatch
-A lamp

What Happened in Experiment 1

My partner and I first got all the equipment above setup and ready on a workbench. I then got a glass beaker with the 10 larvae located inside it. We then both checked that there where exactly 10 larvae inside the beaker. My partner then carefully placed the 10...

Rate this document

What do you think about the quality of this document?

Share this document

Let your classmates know about this document and more at Studymode.com