Notes on Chilean anapids and their webs. American Museum novitates ; no. 3428

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New York, NY : American Museum of Natural History
Orb webs of the Chilean anapid genera Crassanapis Platnick and Forster, Sheranapis Platnick and Forster, and Elanapis Platnick and Forster are described for the first time. Crassanapis and Sheranapis species spin a typical anapid web, with one to several radii above the orbplane, going upward from the hub. Their webs are intraspecifically variable in size and architectural details. Sheranapis villarrica Platnick and Forster often constructs smaller webs close to the water surface of streams. The web of Elanapis aisen Platnick and Forster is two dimensional, without orb-plane threads, like typical webs of Symphytognathidae. The webs of Minanapis species are still unknown. Elanapis aisen has a protruding labrum, which supports its placement in Anapidae. The spinnerets of Elanapis aisen and Crassanapis chilensis are figured and described. The respiratory system of Elanapis aisen and Minanapis floris is described; all Chilean anapids examined so far have normal booklungs and four simple tracheae limited to the abdomen.
13 p. : ill. ; 26 cm.
Includes bibliographical references (p. 12-13).