Mechanical properties of mineralized and sclerotized puparial cuticles of the fliesMusca autumnalis andM. domestica
✍ Scribed by Grodowitz, Michael J. ;Roseland, Craig R. ;Hu, Kuo Kuang ;Broce, Alberto B. ;Kramer, Karl J.
- Book ID
- 102894864
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 811 KB
- Volume
- 243
- Category
- Article
- ISSN
- 0022-104X
No coin nor oath required. For personal study only.
✦ Synopsis
Mechanical properties of mineralized and sclerotized puparial cuticles of the face fly, Musca autumnalis, and the house fly, M. domestica, respectively, were determined. The thickness of mineralized cuticle is 55% greater than that of sclerotized cuticle (thickness = 41.7 and 26.8 pm, respectively) from puparia of similar diameter (2.4 to 2.8 mm). Nonetheless, breaking forces for both types of puparial cuticle are similar (load ultimate strength = 9.3-10.9 g). However, the mineralized puparia are considerably stiffer than sclerotized puparia (elastic modulus = 346.4 kg mm-I and 711.5 kg mm-l, respectively) and exhibit fracture at relatively lower load values (percentage total deformation at fracture = 3.5% and 11.0%, respectively). Differences in mechanical properties of puparial cuticle are probably due to the kinds and quantities of cuticular components: The mineralized puparia contain appreci-