Instruction for Dissection of Honey Bees, Red Cotton Bug and House Fly

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Instruction for Dissection of Honey Bees, Red Cotton Bug and House Fly

Instruction for Dissection of Honey Bees:

Cut the head from the thorax, Hold the head between the thumb and the index finger with the mouthparts facing you. Remove each mandible by exerting outward pressure at the base with a needle. Change the position the head, so that its posterior side faces you in an inverted position. Make it flaccid by applying some pressure. Remove the maxilla-labial complex by exerting upward pressure at its base with a needle. Mount the mouthparts in glycerin on a slide and remove the extraneous tissues from them. Place a cover-slip over them and examine under a microscope.

Instruction for Dissection of Red Cotton Bug:

Cut the head from the thorax. Hold the head between the thumb and the index-finger and make it flaccid by applying some pressure. Place it on a microscope slide and moisten the proboscis with a drop of water. Press the proboscis gently at various places with the help of a needle till the stylets come out of the labial sheath and get disengaged. Mount the mouthparts in glycerin on a microscope slide and arrange them as shown in the diagram. Place a cover them and examine under a microscope.

Instructions for Dissection of House Fly:

Cut the head from the thorax. Hold the head between the thumb and the index finger with the posterior side of the proboscis facing you in an inverted position. Remove the proboscis by exerting upward pressure at its base with a needle. Place the proboscis in glycerin on a microscope slide and remove the extraneous tissues from it. Place a cover slip over it and examine under a microscope.

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