194 ELEMENTARY LESSONS ON INSECTS 



LESSON 17 



Preparing Specimens of Insects 

 This lesson consists entirely of a: 



WORK PROGRAM 



1. Pin up some freshly collected (or freshly relaxed) bugs 

 or other insects that do not require spreading of the wings, 

 carefully inserting the pins through the middle of the thorax, 

 vertically, and adjusting all to uniform height on the pins. 



2. Pin a dragonfly and a butterfly or moth, and fix the 

 wings in proper position on a spreading board (seepage 188). 



3. Pin a few beetles (vertically, through middle of the 

 right wing cover). 



4. Mount a few weevils or other minute beetles on paper 

 points (see figure on page 186). 



5. Mount a few mosquitoes on pin points (see figure on 

 page 186). 



6. Make a slide mount in balsam of several of the smallest 

 midges obtainable. 



7. Dissect and mount the mouthparts of a stonefly nymph 

 or a cockroach. 



