1979] 
Henry — Chrysopa downesi 
297 
Tauber, 1977), whereas one expects random processes to affect all 
aspects of an organism’s genotype more or less equally. This same 
interfertility and morphological similarity of the two species argue 
strongly for their close relationship to one another and against their 
having other closest relatives and other evolutionary histories. 
Acknowledgements: 
This study was supported by N.S.F. award number DEB77- 
12443, C. S. Henry, principal investigator. I thank the following 
colleagues from the University of Connecticut: R. Pupedis, J. 
O Donnell and S. Cohen for help in the field collection and labora¬ 
tory maintenance of lacewings; and R. J. Schultz, E. Brighty, and G. 
Clark for constructive comments on the paper and its concepts. C. 
Tauber, Cornell University, kindly supplied six of the C. downesi 
adults from a young laboratory colony. 
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