Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-24T19:00:12.948Z Has data issue: false hasContentIssue false

An Application of the Linear Discriminant Function to Insect Taxonomy1

Published online by Cambridge University Press:  31 May 2012

Extract

This paper is a report an the applicability of the linear discriminant function to insect taxonomy. Mather and Dobzhansky (1939) and Cox (1953) applied this technique to problems in insect taxonomy, but the former study was concerned with detecting a difference between samples, and the latter used the function only secondarily. In this paper, discriminant functions were calculated from several combinations of linear characters in males of two closely related species of grasshopper, Arphia pseadonietana (Thomas) and A. conspersa Scudder, to determine: (a) whether a reliable criterion could be found for relatively inexperienced workers to determine individual specimens with a predictable degree of precision; and (b) which characters, or combination of characters, would provide the most reliable criteria.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1954

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Cox, C. E. 1953. Analysis of frequency distribution of adults and larvae of Ckoristoneura fumiferana (Clem.) and C. pinus Free. (Lepidoptera: Tortricidae). Canadian Ent. 85: 136141.CrossRefGoogle Scholar
Fisher, R. A. 1936. The use of multiple measurements in taxonomic problems. Ann. Eug. London 7: 179188.CrossRefGoogle Scholar
Goulden, C. H. 1952. Methods of statistical analysis. 2nd ed.John Wiley & Sons, Inc., New York.Google Scholar
Hebard, M. 1936. Orthoptera of North Dakota. North Dakota Agr. Coll. Agr. Expt. Sta. Tech. Bull. 284: 166.Google Scholar
Mather, K., and Dobzhansky, T.. 1939. Morphological differences between the “races” of Drosophila pseudoobscura. Amer. Nat. 73: 525.CrossRefGoogle Scholar