Kline D L, Axtell R C
Center for Medical, Agricultural and Veterinary Entomology, USDA-ARS, Gainesville, FL 32604, USA.
J Med Entomol. 1999 Jul;36(4):493-502. doi: 10.1093/jmedent/36.4.493.
The types and arrangement of the sensilla on the female antennae and maxillary palps of both sexes of 2 estuarine species of biting midges, Culicoides hollensis (Melander & Brues) and C. melleus (Coquillett), were studied by scanning electron microscopy. Five sensillum types are found on the antennae of both species. Both species have sharp-tipped sensilla trichodea and sensilla basiconica only on subsegments 9-13 and blunt-tipped sensilla trichodea on all subsegments. Sensilla coeloconica occur on subsegment 1 of both species and various other subsegments depending on the species. Sensilla chaetica are found on all subsegments of C. melleus, but only on subsegments 1-8 and 13 on C. hollensis. Both sexes of C. hollensis have either 1 or 2 pits on the 3rd segment of the maxillary palps, which contain 8-15 bulb-shaped sensilla in females compared with 5-6 in males. No pit is found on the maxillary palps of either sex of C. melleus, but rather the bulb-shaped sensilla are distributed individually on this segment, ranging from 13 to 29 on the female and 6-10 on the male palps. These data are compared with data obtained from previously published light and electron microscopical studies of biting midge sensory structures.
采用扫描电子显微镜研究了两种河口蠓类，即霍氏库蠓（Culicoides hollensis，Melander & Brues）和蜜色库蠓（C. melleus，Coquillett）雌虫触角以及两性上颚须上感器的类型和排列。在两种蠓类的触角上均发现了五种感器类型。两种蠓类仅在第9 - 13亚节上有尖形毛形感器和锥形感器，而在所有亚节上均有钝形毛形感器。腔锥感器出现在两种蠓类的第1亚节以及其他不同的亚节上，具体取决于物种。在蜜色库蠓的所有亚节上均发现了刺形感器，但在霍氏库蠓中仅存在于第1 - 8亚节和第13亚节上。霍氏库蠓两性的上颚须第3节上均有1个或2个凹坑，雌虫的凹坑中含有8 - 15个球形感器，而雄虫的为5 - 6个。蜜色库蠓两性的上颚须上均未发现凹坑，而是球形感器单独分布在该节上，雌虫上颚须上的球形感器数量为13 - 29个，雄虫为6 - 10个。将这些数据与之前发表的关于蠓类感觉结构的光学和电子显微镜研究数据进行了比较。
