NEW ANT-LIONS FROM THE SOUTHWESTERN 
UNITED STATES 
(NEUROPTERA : MYRMELEONTIDAE) 1 
By Phillip A. Adams 
Biological Laboratories, Harvard University 
In the course of identifying material from the South- 
west, the writer has encountered several new species and 
a new genus of Myrmeleontidae. Descriptions of these are 
given below, with a list and key to the species of the genus 
Eremoleon Banks. Sources of specimens are designated by 
the following abbreviations: CAS, California Academy of 
Sciences; CIS, California Insect Survey, University of 
California, Berkeley; UCD, University of California, Dav- 
is; UCR, University of California, Riverside; UCLA, Uni- 
versity of California at Los Angeles; LAM, Los Angeles 
County Museum; MCZ, Museum of Comparative Zoology, 
Harvard. The kindness of the staffs of these institutions in 
lending material is gratefully acknowledged. 
The terminology of the wing venation as used herein 
differs from the usual system (summarized by Markl) 2 in 
several fundamental aspects. Markl’s study is an excellent 
and invaluable treatment of the comparative morphology of 
the wing of the ant-lions, but unfortunately his scope, a 
tribal revision, was so large as to have discouraged detailed 
investigation of venation in other families. The best clues 
to the homologies of the myrmeleontoid wing are to be 
found in the primitive myrmeleontoids — the Osmylidae 
and the Myiodactylidae. A thorough account of the reasons 
for the adoption of the present system will be given in a 
forthcoming paper, dealing with the venation of the order 
as a whole. 
In both wings, MA has become coalesced with Rs; the 
“basal piece” (Figure 8, “b”) is to be seen at the base of 
the fore wing between R and MP. In the hind wing the basal 
Published with the aid of a grant from the Museum of Comparative 
Zoology, Harvard College. 
2 Markl, W., 1954, Verh. d. Naturforschenden Ges. Basel 65:178-263. 
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