Definition of Pygidial. Meaning of Pygidial. Synonyms of Pygidial

Here you will find one or more explanations in English for the word Pygidial. Also in the bottom left of the page several parts of wikipedia pages related to the word Pygidial and, of course, Pygidial synonyms and on the right images related to the word Pygidial.

Definition of Pygidial

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Meaning of Pygidial from wikipedia

- The pygidium (pl.: pygidia) is the posterior body part or shield of crustaceans and some other arthropods, such as insects and the extinct trilobites....
- name: when disturbed, they eject a hot noxious chemical spray from their pygidial glands with a popping sound. The spray is produced from a reaction between...
- exoskeleton, seven articulating tergites and similarly sized cephalic and pygidial shields, in addition to only having three pairs of walking legs and the...
- attractive to ants and by the odd antennal structures of many species. Their pygidial glands can produce explosive secretions, with a spray of quinones that...
- their rectal chamber. Other insects such as the rove beetle Stenus emit pygidial gland surfactant secretions that reduce surface tension; this enables them...
- chemicals as ants: formic acid. Bombardier beetles have well-developed pygidial glands that empty from the sides of the intersegment membranes between...
- pygidial gland. The reservoirs are covered with muscle layers so that the muscles can move them out when it is time. In conjunction with the pygidial...
- and the ovaries are polytrophic. All families of adephagan have paired pygidial glands located posterodorsally in the abdomen, which are used for secreting...
- pygidial spines (23 versus 11, and in Gourdonia 13 spines) is most con****uous. Also, the pygidial border has a smooth connection with the pygidial spines...
- means of communication and defense against predators. These beetles have pygidial glands that produce a secretion composed mainly of two parts: a high molecular...