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....
- 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...
- chemicals as ants: formic acid. Bombardier beetles have well-developed pygidial glands that empty from the sides of the intersegment membranes between...
- their rectal chamber. Other insects such as the rove beetle Stenus emit pygidial gland surfactant secretions that reduce surface tension; this enables them...
- quaterspinosus is named after the fact that it has only four pairs of pygidial lappets. The headshield (or cephalon) may have a spine sticking forward...
- 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...
- isopypous with a narrow dome-shaped glabella and a narrow bullet-shaped pygidial axis. Thorax consists of three segments. Tsunyidiscus is the only genus...
- 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...
- 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...