Pygidial Tuft

Locating the pygidial tuft

The pygidial tut is located at the tip of the pygidium, which is the most posterior part of the body in dorsal view.

Figure 1. Dorsal view of Anoplognathus. Move cursor over image to locate character

Photo Figure 1 © Kindi Smith, Australian Museum

States of development of pygidial tuft

There are two states

1. apical tuft well-defined, by a dense group of long golden setae at tip of pygidium (Figure 2A)

2. apical tuft absent or few apical setae present, not all arising from the pygidial apex (Figure 2B)
   

Figure 2. Posterior view of apex of pygidium

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scale bar equals 1mm
Photos Figure 2 © Kindi Smith, Australian Museum

Copyright © Australian Museum 2016
Authors: Chris Reid & Kindi Smith