A New Method for Quick and Easy Hemolymph Collection from Apidae Adults

Area of Science:

• Entomology
• Insect Physiology
• Biotechnology

Background:

• High-quality insect hemolymph is crucial for sensitive bio-analysis.
• Collecting uncontaminated, non-melanized hemolymph from active bees is challenging due to melanization and bee behavior.

Purpose of the Study:

• To develop and validate a rapid, sterile, and contamination-free method for adult bee hemolymph collection.
• To compare the novel method's efficiency with existing techniques.

Main Methods:

• Introduced the antennae method for hemolymph sampling (AMHS).
• Involves detaching an antenna and applying abdominal pressure to collect hemolymph.
• Hemolymph is aspirated using an automatic pipetter.

Main Results:

• AMHS yielded 80-100 μL of sterile, non-melanized hemolymph rapidly.
• Larger insect size correlated with faster collection and higher volumes.
• AMHS required fewer bees and less time compared to the traditional thoracic capillary sinus (TCHS) method.

Conclusions:

• The AMHS is a superior method for obtaining high-quality bee hemolymph for bio-analysis.
• This technique minimizes melanization and contamination, improving sample integrity.
• AMHS offers a more efficient and less demanding alternative to TCHS.