Open AccessTHE ADJUSTMENT OF BUOYANCY OF PUPAE OF THE TREE‐HOLE BREEDING CULICOIDES ANGULARIS LEE AND REYE (DIPTERA: CERATOPOGONIDAE)
Author(s) -
Murray M. D.
Publication year - 1987
Publication title -
australian journal of entomology
Language(s) - English
Resource type - Journals
eISSN - 1440-6055
pISSN - 1326-6756
DOI - 10.1111/j.1440-6055.1987.tb01985.x
Subject(s) - biology , pupa , ceratopogonidae , anatomy , zoology , larva , ecology
Abstract The basic buoyancy of pupae of C. angularis is controlled by a gaseous space within the cephalothorax which keeps pupae floating vertically. Extension and contraction of the abdomen enables an increase or decrease in abdominal volume, and the consequent changes to the specific gravity of the pupae enable ascent or descent within the water of the tree‐hole. Extension and contraction of the abdomen are controlled by the respiratory requirements of the pupae. Contraction of the abdomen is also part of an escape reaction from the surface of the water.