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Apion (Trichapion) candyae, New Species (Coleoptera: Curculionidae), a Gall-Maker on Leaf Petioles of Erythrina berteroana Urban (Fabaceae) in el Salvador

Donald R. Whitehead
The Coleopterists Bulletin
Vol. 32, No. 3 (Sep., 1978), pp. 193-201
Stable URL: http://www.jstor.org/stable/3999868
Page Count: 9
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Apion (Trichapion) candyae, New Species (Coleoptera: Curculionidae), a Gall-Maker on Leaf Petioles of Erythrina berteroana Urban (Fabaceae) in el Salvador
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Abstract

Apion (Trichapion) candyae, new species (San Vicente, El Salvador), forms galls on leaf petioles, petiolets, and midveins of Erythrina berteroana Urban. A member of a poorly understood complex including many species with striking secondary sexual modifications, A. candyae is particularly rich in such modifications. An attempt to determine precise relationships by comparisons of characteristics mentioned in published descriptions failed, because the data matrix was insufficiently rich in usable specializations--i.e., derived characteristics shared among 2 or more taxa. However, presently available data indicate that the narrowest interpretation is of shared ancestry with the Mexican A. sleeperi Kissinger, another species with numerous bizarre male specializations. With some reservations, these 2 species are retained in the nigrum group of the subgenus Trichapion.

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