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AN UNIDENTIFIED LEAF MINE IN FOSSIL MAHONIA RETICULATA (BERBERIDACEAE)

Published online by Cambridge University Press:  31 May 2012

A. M. Liebhold ,
W. J. A. Volney  and
H. E. Schorn
A. M. Liebhold
Affiliation:
University of California, Berkeley 94720
W. J. A. Volney
Affiliation:
University of California, Berkeley 94720
H. E. Schorn
Affiliation:
University of California, Berkeley 94720
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Extract

Insect mines have been reported in several fossil leaf specimens (Brooks 1955; Freeman 1965; Lewis 1969; Opler 1973; Hickey and Hodges 1975; Crane and Jarzembowski 1980). These fossils represent useful records for the study of insect-host evolutionary history. Opler (1973) and Hickey and Hodges (1975) compared fossil Ieaf mines with those caused by extant insect species in homologous host species and concluded that specific insect-host associations have persisted for as long as 50 million years. We report here the presence of leaf mines in a Miocene specimen of Mahonia reticulata (MacGinitie) Brown (Berberidaceae). It is unclear whether a comparable insect species is associated with extant Nearctic Mahonia Nuttall.

Type
Articles
Information
The Canadian Entomologist , Volume 114 , Issue 5 , May 1982 , pp. 455 - 456
Copyright
Copyright © Entomological Society of Canada 1982

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