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in the earth, which are often furnished with a trapdoor. The South American bird spider (Mygale avicularia), and the crab spider, or matoutou (M. cancerides) are among the largest species. Some of the species are erroneously called tarantulas, as the Texas tarantula (M. Hentzii).

f passage, a migratory bird. -- Bird spider (Zoöl.), a very large South American spider (Mygale avicularia). It is said sometimes to capture and kill small birds. -- Bird tick (Zoöl.), a dipterous insect parasitic upon birds (genus Ornithomyia, and allies), usually winged.

s (Tarantula apuliæ). The tarantulas of Texas and adjacent countries are large species of Mygale. [Written also tarentula.] Tarantula killer, a very large wasp (Pompilus formosus), which captures the Texan tarantula (Mygale Hentzii) and places it in its nest as food for its young, after paralyzing it by a sting.…

ing those spiders which have four lungs, or pulmonary sacs. It includes the bird spiders (Mygale) and the trapdoor spiders. See Mygale.