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Anastrepha schausi Aldrich

Recognition
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Anastrepha schausi belongs to the schausi species group, which differs from other species of Anastrepha in having minute spines on the glans of the male, the facial carina weak, the lateral surstylus acute, its lateral margin usually slightly concave, and the male face and/or abdomen with white or brown markings. Anastrepha schausi differs from all other species of Anastrepha except A. fernandezi and A. hermosa by the shape of the face, particularly its angulate lower margin. It differs from both of these species in lacking brown and white male abdominal markings and in having a brown band on the male face and the facial ridge in addition to white areas on the facial ridge. Anastrepha schausi further differs from A. hermosa in having broader nonmicrotrichose stripes on the scutum, and from A. fernandezi in having the V-band of the wing complete. The female (so far unknown) probably has the face similarly shaped as the male, or at least with the carina weak. Estimating from the length of the phallus, the female oviscape is probably about 4.2 mm long. Anastrepha scobinae Stone, hastata Stone, and tubifera (Walker), which are known only from females, have wing patterns similar to A. schausi and terminalia of corresponding length, but they all have well developed facial carinae and are doubtfully conspecific. A. tubifera also has vein M much more strongly curved apically, and it and A. hastata also have the scutum entirely microtrichose.

Classification and Evolutionary Relationships
Order: Diptera. Family: Tephritidae. Genus: Anastrepha. Species: schausi. Author: Aldrich.
Relationships among the species of Anastrepha were analyzed by Norrbom et al. (1999) and McPheron et al. (1999). Click here for more detailed discussion of Anastrepha phylogeny. A. schausi has been placed in the schausi species group, which includes three other species.

Names Used for this Species
Anastrepha schausi Aldrich 1925: 3.
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Type Data
Holotype male (USNM, no. 26837), COSTA RICA: Juan Viñas, 11.i, W. Schaus & J. T. Barnes.

Distribution
Known only from the type locality in Costa Rica.
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Biology
The host plants and biology of this species are unknown.

Economic Significance
Anastrepha schausi is not considered a pest species.

References
Key references are listed below. See fruit fly literature database for additional references.
Aldrich, J. M. 1925. New Diptera or two-winged flies in the United States National Museum. Proc. U.S. Natl. Mus. 66(18): 36 p. [= No. 2555].
McPheron, B. A., H.-Y. Han, J. G. Silva & A. L. Norrbom. 1999. Phylogeny of the genera Anastrepha and Toxotrypana (Trypetinae: Toxotrypanini) based upon 16S rRNA mitochondrial DNA sequences, p. 343-361. In M. Aluja & A. L. Norrbom, eds., Fruit flies (Tephritidae): Phylogeny and evolution of behavior. CRC Press, Boca Raton. [16] + 944 p. [phylogeny]
Norrbom, A. L. & K. C. Kim. 1988. Revision of the schausi group of Anastrepha Schiner (Diptera: Tephritidae), with a discussion of the terminology of the female terminalia in the Tephritoidea. Ann. Entomol. Soc. Am. 81: 164-173.
Norrbom, A. L., R. A. Zucchi & V. Hernández-Ortiz. 1999. Phylogeny of the genera Anastrepha and Toxotrypana (Trypetinae: Toxotrypanini) based on morphology, p. 299-342. In M. Aluja & A. L. Norrbom, eds., Fruit flies (Tephritidae): Phylogeny and evolution of behavior. CRC Press, Boca Raton. [16] + 944 p. [classification & phylogeny]
Steyskal, G. C. 1977. Pictorial key to species of the genus Anastrepha (Diptera: Tephritidae). Entomol. Soc. Wash., Washington, D.C. 35 p.
Stone, A. 1942. The fruitflies of the genus Anastrepha. U.S. Dep. Agric. Misc. Publ. 439: 112 p.