dorsal plate

From ZooTerms (Dictionary of Invertebrate Zoology)
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dorsal plate: 1. (Arthropoda: Chelicerata) In Mesostigmata, the dorsal plate on the body.

2. (Arthropoda: Crustacea) In Decapoda, a spindle-shaped division of the carapace.

3. (Arthropoda: Insecta) a. In Buprestidae larva, the plate or disk on the dorsal surface of the enlarged segment back of the head. b. In some Diaspididae, slightly to elaborately branched marginal pygidial processes with none to many microducts.