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Euaresta versicolor Norrbom

Recognition
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Euaresta versicolor is one of three species of Euaresta lacking the anterior notopleural seta. Both the male and female of E. versicolor can be distinguished from all other species of Euaresta by their dark femora and extremely broad, orange frons. The male also is easily distinguished by its orange presutural scutal setulae, its unusual microtrichial pattern on the abdomen, its single frontal seta and reduced ocellar and orbital setae, and by its relatively unswollen fore femur (similar in width to that of female). The presutural scutal setulae are also denser in both the male and female of E. versicolor than in other species. The abdominal tergites are entirely brown, whereas they usually are at least partially yellow in other species.

Classification and Evolutionary Relationships
Order: Diptera. Family: Tephritidae. Subfamily: Tephritinae. Genus: Euaresta. Species: versicolor. Author: Norrbom.
Relationships among the species of Euaresta were analyzed by Norrbom (1993). Click here for more detailed discussion of Euaresta phylogeny. Euaresta versicolor has been placed in the toba species group.

Names Used for this Species
Euaresta versicolor Norrbom 1993: 203.
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Type Data
Holotype - Male (USP), BRAZIL: São Paulo: Barueri, 25.X.1955, K. Lenko, 3528.

Distribution
Euaresta versicolor is known only from the state of São Paulo in southern Brazil.
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Biology
The host plants and biology of Euaresta versicolor are unknown, although it probably breeds in female flowers of one or more species of Ambrosia.

Economic Significance
Euaresta versicolor is not known to be of economic significance.

Comments
The orbital setae may be difficult to recognize as such in the male because of their small size and location close to the eye due to the broad width of the frons in this species.

References
Click here to access fruit fly literature database
Norrbom, A. L. 1993. New species and phylogenetic analysis of Euaresta Loew (Diptera: Tephritidae) with a key to the species from the Americas south of Mexico. Proc. Entomol. Soc. Wash. 95: 195-209. [description, phylogenetic relationships]
Norrbom, A. L., L. E. Carroll, F. C. Thompson, I. M. White & A. Freidberg. 1999. Systematic database of names, pp. 65-251. In F. C. Thompson (ed.), Fruit Fly Expert Identification System and Systematic Information Database. Myia (1998) 9, vii + 524 pp. & Diptera Data Dissemination Disk (CD-ROM) (1998) 1. [p. 145, in catalog]

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