Ultrastructure of Antennal Sensory Organs in Nine Flesh Flies (Diptera: Sarcophagidae): New Insight into the Definition of Family Sarcophagidae

Overview

Journal Insects

Specialty Biology

Date 2022 Jul 27

PMID 35886778

Authors

Wentian Xu

Genting Liu

Qike Wang

Liping Yan

Xianhui Liu

Xinyu Li

Thomas Pape

Dong Zhang

Affiliations

Soon will be listed here.

Abstract

The antennae are the main olfactory organ of flies, playing key roles in their survival and the success of all life stages. Antennal ultrastructural morphology has been well described in the representative species of most calyptrate families, yet only a few studies have focused on Sarcophagidae species, those with ecological and medical relevance. Antennal morphology and the types, shapes, distribution, and density of the antennal sensilla of nine Sarcophagidae species are studied in detail with scanning electron microscopy, including Miltogramminae: (Fallén) and (Loew), Paramacronychiinae: (Rohdendorf & Verves), (Macquart), and . (Schiner); Sarcophaginae: () Meigen, . () (Wiedemann), . () (Robineau-Desvoidy), and . () (Rohdendorf), covering all three subfamilies of this family. The morphology of the three segments of the antennae has been described. The scape has only one type of chaetic sensilla, while three subtypes of chaetic sensilla were detected on the pedicel. The postpedicel has four types of sensilla: trichoid sensilla, coeloconic sensilla, clavate sensilla, and three subtypes of basiconic sensilla. Bottle-shaped sensilla were observed in sensory pits on the postpedicel in all nine species. These sensilla have not been discovered in other calyptrate species, suggesting that they are a potential sarcophagid synapomorphy.

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