Antennal sensilla of Toxotrypana curvicauda (Diptera: Tephritidae)

René Arzuffi, Norma Robledo, Jorge Valdez

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Antennal morphology and funicular sensilla of male and female papaya fruit fly, Toxotrypana curvicauda Gerstaecker, were studied with light microscopy and scanning electron microscopy. Antennae were 3-segmented, consisting of a scape, a pedicel, a flagellum or funiculus that bears the arista. Antennal segments of males showed a trend toward slightly greater dimensions than those of females, but the differences were not significant. Numerous microtrichia as well as trichoid, basiconic, clavate, and styloconic sensilla were observed on the funiculus, and the sensillar characteristics were similar to those reported for other tephritid species. Males and females did not differ in total number or type of sensilla found on the funiculus, but trichoid and clavate sensilla were significantly larger in females. This difference may be related to female chemoreception of male-emitted sex pheromone and of host plant volatiles.

Original languageEnglish
Pages (from-to)669-673
Number of pages5
JournalFlorida Entomologist
Issue number4
StatePublished - Dec 2008


  • Antennae
  • Funicular sensilla
  • Papaya fruit fly
  • Scanning electron microscopy
  • Toxotrypana curvicauda


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