头楯
昆虫的头楯位于面部下缘,上唇则铰接于头楯正下方。下颚会拖住上唇,但不会碰到头楯。头楯的背侧缘位于触角窝下方。背侧和外侧边界有明显的界沟,通常成长方形或梯形。
参考文献
编辑- ^ Moulds, Maxwell Sydney. Australian Cicadas. Kensington, New South Wales: New South Wales University Press. 1990: 10. ISBN 0-86840-139-0.
- ^ Ubick, D.; P. Paquin; P.E. Cushing; V. Roth. Spiders of North America: An Identification Manual. American Arachnological Society. 2005.