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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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<strong>Online</strong> <strong>Dictionary</strong> <strong>of</strong> <strong>Invertebrate</strong> <strong>Zoology</strong> 845trachea extend into the body.spiracular cleft (ARTHRO: Insecta) In some larvae, spiraclesfound in a closed or open cleft; in closed cleft, one or twoliplike structures are usually present; stigmatic cleft.spiracular depressions (ARTHRO: Insecta) In Coccoidea, usuallyfound on the margin at the base <strong>of</strong> the spiracular setae.spiracular disk (ARTHRO: Insecta) In Diptera, a flat area onthe caudal segment containing the spiracular openings <strong>of</strong>aquatic larvae.spiracular gills (ARTHRO: Insecta) In some aquatic pupae, thelong processes formed by the peritreme and atrial regions<strong>of</strong> one or more pairs <strong>of</strong> spiracles; adapted both for aquaticand aerial respiration.spiracular grooves see spiracular cleftspiracular line (ARTHRO: Insecta) The colored or pigmentedline adjacent to or coinciding with the line <strong>of</strong> the spiracles<strong>of</strong> caterpillars.spiracular muscles (ARTHRO: Insecta) The occlusor and dilator.spiracular plate see peritremespiracular processes (ARTHRO: Insecta) In some Scarabaeoidea,dendriform trabeculae that form the filter apparatus.spiracular sclerite (ARTHRO: Insecta) In Diptera, a sclerite <strong>of</strong>the metapleuron below the metathoracic spiracle.spiracular setae (ARTHRO: Insecta) In Coccoidea, setae <strong>of</strong>various shapes and sizes terminating each spiracular poreband.spiracular sieve plate (ARTHRO: Insecta) A platelike scleritecovering the spiracle that functions to exclude entry <strong>of</strong> dustor water into the tracheal system.spiracular spines (ARTHRO: Insecta) In Coccoidea, large setausually associated with each spiracular pore cluster.spiraculate a. [L. spirare, to breathe] With spiracles.spiraculiform a. [L. spirare, to breathe; forma, shape] Spira-

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