A comparative study of moulting behaviour and associated morphological changes of final instar immatures of Pseudophacopteron tuberculatum (Crawford, 1912) (Phacopteronidae) and Baeoalitriozus obsoletus (Buckton, 1900) (Triozidae) from Odisha, India

Abstract :

The moulting behavior and associated morphological changes of two different important psyllid species, Pseudophacopteron tuberculatum (Crawford, 1912) (Phacopteronidae) and Baeoalitriozus obsoletus (Buckton, 1900) (Triozidae), were studied. P. tuberculatum (Crawford, 1912) and B. obsoletus (Buckton, 1900) infest Alstonia scholaris (L.) R.Br. and Diospyros melanoxylon Roxb. respectively. It was found that three type of ‘pause’ occurs during the complete moulting process in the psyllid i.e., ‘First pause’ is when the last instar immature finds a suitable place selected for moulting, ‘second pause’ during the suitable place selected for wing expansion and the ‘third pause’ when the adult changes its body colouration.


Keyword :

Moult, morphology, psyllid, Phacopteronidae, Triozidae


Author(s) : Tripathy, A., Tripathy, M. K.
Downloads : 13
Published Issue : 2022 Vol. 17 Number 2


2022 Vol. 17 Number 2