Definition of Pygidial. Meaning of Pygidial. Synonyms of Pygidial

- The pygidium (pl.: pygidia) is the posterior body part or shield of crustaceans and some other arthropods, such as insects and the extinct trilobites....
- chemicals as ants: formic acid. Bombardier beetles have well-developed pygidial glands that empty from the sides of the intersegment membranes between...
- exoskeleton, seven articulating tergites and similarly sized cephalic and pygidial shields, in addition to only having three pairs of walking legs and the...
- 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...
- their rectal chamber. Other insects such as the rove beetle Stenus emit pygidial gland surfactant secretions that reduce surface tension; this enables them...
- 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...
- Pygidium subtriangular, about 1½× as wide as long. Pygidial axis with 8 discernible rings. 6 pairs of pygidial pleura terminate in well developed 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...
- and the ovaries are polytrophic. All families of adephagan have paired pygidial glands located posterodorsally in the abdomen, which are used for secreting...
- 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...