oa Journal of the Entomological Society of Southern Africa - The structure and function of the posterior abdominal glands of the cockroach Pseudoderopeltis bicolor (Thunb.)

Volume 27, Issue 1
  • ISSN : 0013-8789



The posterior abdominal tergites of the cockroach Pseudoderopeltis bicolor (Thunb.) are covered by an opaque, sticky secretion to which no previous reference can be found. This secretion occurs on all nymphs and females but not on adult males. The parts covered by the secretion are shown in fig. 1. The lateral margins of tergites six and seven curve up so that two depressions are formed, one on either side of a central dorsal ridge. While covering the tergites completely, the secretion tends to accumulate in these depressions.

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