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Zonosemata guybushi Norrbom

Dorsal habitus, female.

Recognition
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This species, like other Zonosemata species, is mostly yellow with a few dark brown markings on the thorax and abdomen. The scutum has three white stripes, including a medial one, and postsutural dark brown markings (often somewhat U-shaped). The wing is mostly hyaline with 5 transverse bands in a "spider-mimic" pattern.

Zonosemata guybushi is most similar to Z. electa (Say). It differs from the other species of Zonosemata except Z. electa by the following combination of characters: wing bands broad; radial cells and cell dm at most with small areas bare of microtrichia between discal and subapical bands; apical band not extended along vein M; only distal abdominal tergite with dark brown lateral spot; apical and subapical bands evenly developed, similar to discal band in color; accessory costal band variable, but not connected to subapical band; length of first flagellomere less than 0.7 times height of face; and scutum without presutural dark brown marks.

Zonosemata guybushi differs from Z. electa in having broader and darker wing bands (the discal band is broader than the hyaline area between it and the subapical band measured along vein M). Cell cu1 lacks or has only a very small nonmicrotrichose area, and the subscutellum and at least a broad medial stripe on the mediotergite are dark brown; in Z. electa these characters are variable, but the subscutellum and mediotergite are usually entirely orange and there is usually a large nonmicrotrichose area in cell cu1.

Classification and Evolutionary Relationships
Order: Diptera. Family: Tephritidae. Subfamily: Trypetinae. Genus: Zonosemata. Species: guybushi. Author: Norrbom.
Relationships among the species of Zonosemata have not been analyzed. Zonosemata guybushi may be most closely related to Zonosemata electa (Say), which it closely resembles.

Names Used for this Species
Zonosemata guybushi Norrbom 2002: 617.
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Type data
Holotype - Female (Instituto Nacional de Biodiversidad, Costa Rica; INBIO002153791), COSTA RICA: Guanacaste: Area Conservacion Guanacaste, San Cristobal, LN 317400 383400, 620 m, emerged 8 Apr 1998 from fruits of Solanum lanceifolium Jacq. coll. 10 Sep 1997, 97-F. A. Quesada-134.

Distribution
Zonosemata guybushi is known only from Costa Rica (Guanacaste). Its only known host plant, Solanum lanceifolium, also occurs in the Greater and Lesser Antilles and from Oaxaca, Mexico to Peru.
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Biology
Zonosemata guybushi was reared from fruits of Solanum lanceifolium Jacq. by F. A. Quesada (Norrbom 1990).

Economic Significance
Zonosemata guybushi is not considered a pest species.

Comments
This species was named in honor of Dr. Guy L. Bush, who revised Zonosemata in 1966 and described three species.

References
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Norrbom, A. L. 2002. A new species and key for the genus Zonosemata Benjamin (Diptera: Tephritidae). Proceedings of the Entomological Society of Washington 104: 614-623. [p. 617, description, host plant]