Briceño R Daniel
Rev Biol Trop. 2014 Mar;62(1):95-107.
Euthyrhynchus floridanus (Linnaeus) (Hemiptera: Pentatomidae) is a neotropical species belonging to the family Pentatomidae with over 4 000 species described, and is distributed from Florida to Brazil. This study describes the sexual behavior and reported for the first time the production of substrate vibrations by males and females during copulatory behavior and mating. Courtship and copulatory behavior, as well as the diverse signals, were recorded with a phonographic cartridge connected to a video camera. Female vibrations were reproduced in the absence of females and the responses by males were recorded. At least three types of substrate vibrations were distinguished in males and one in females, and these signals were characterized by their low frequency, varying from 127 to 180Hz. The sounds of E. floridianus males were significantly different in frequency, duration and number of pulses, both in courtship and in copulation, for the purring and drumming sounds. The production of sounds in this species is associated principally with mechanical, stimulatory behavior during courtship and copulation. Patterns of behavior and their relation to substrate vibrations suggest that these signals are important for the males in the context of mate location and sexual selection.
佛罗里达扁蝽（Euthyrhynchus floridanus）（林奈）（半翅目：蝽科）是蝽科的一种新热带物种，该科已描述的物种超过4000种，分布于从佛罗里达到巴西的地区。本研究描述了其性行为，并首次报道了雄性和雌性在交配行为期间产生的底物振动。求偶和交配行为以及各种信号，通过连接到摄像机的录音盒进行记录。在没有雌性的情况下重现雌性振动，并记录雄性的反应。在雄性中至少区分出三种类型的底物振动，在雌性中区分出一种，这些信号的特征是低频，频率在127至180赫兹之间变化。佛罗里达扁蝽雄性的声音在求偶和交配过程中的咕噜声和鼓声，在频率、持续时间和脉冲数量上都有显著差异。该物种声音产生主要与求偶和交配期间的机械刺激行为有关。行为模式及其与底物振动的关系表明，这些信号在配偶定位和性选择方面对雄性很重要。
