Extatosoma tiaratum (W. S. Macleay, 1826)

Herhold, Hollister W, Davis, Steven R, Degrey, Samuel P & Grimaldi, David A, 2023, COMPARATIVE ANATOMY OF THE INSECT TRACHEAL SYSTEM PART 1: INTRODUCTION, APTERYGOTES, PALEOPTERA, POLYNEOPTERA, Bulletin of the American Museum of Natural History 459 (1), pp. 1-184 : 1-184

Extatosoma tiaratum

“Spiny leaf insect”

Figures 85 , 86 (lateral, anterior, posterior); 87 , 88 (dorsal, anterior, posterior); 89 , 90 (ventral, anterior, posterior)

Plates 52 (lateral), 53 (dorsal), 54 (ventral)

The spiny leaf insect Extatosoma tiaratum features a highly networked tracheal system with many lateral commissures and longitudinal connections. The posterior portion of the abdomen features a dense packing of noodlelike visceral tracheae that has morphological similarities to a package of dried ramen noodles, likely important for ventilation of the ovaries during the con- tinuous egg production of adult females. A n -DLT and A n -VLT are discernible in regions, along with larger anatomical features such as the location of spiracles, but the complexity of the specimen calls for a more in-depth analysis than can be presented here. Interested readers are encouraged to view the 3D models in the supplementary digital data.

Figures

FIGURE 85. Extatosoma tiaratum (Phasmatodea: Phasmatidae) anterolateral view.

FIGURE 86. Extatosoma tiaratum (Phasmatodea: Phasmatidae) posterolateral view.

FIGURE 87. Extatosoma tiaratum (Phasmatodea: Phasmatidae) anterodorsal view.

FIGURE 88. Extatosoma tiaratum (Phasmatodea: Phasmatidae) posterodorsal view.

FIGURE 89. Extatosoma tiaratum (Phasmatodea: Phasmatidae) anteroventral view.

FIGURE 90. Extatosoma tiaratum (Phasmatodea: Phasmatidae) posteroventral view.