Abnormal Antennal Olfactory Sensilla Phenotypes Involved in Olfactory Deficit in (Diptera: Tephritidae).

The guava fruit fly, , is one of the most destructive pests in the genus and detects environmental odorants mainly through antennal olfactory sensilla phenotypes with nanopores. However, it is unclear whether there are naturally occurring abnormal antennal olfactory sensilla phenotypes that affect olfaction. Here, we found that there were abnormal bulges besides nanopores on the surface of trichoid and basiconic olfactory sensilla in the antennal flagellum of long-term laboratory rearing colony (LTC), and that nanopore number in these olfactory sensilla was also remarkably reduced.