MORPHOLOGIC IDENTIFICATION OF PHLEBOTOMINE SANDFLIES CAPTURED IN URBAN AREA

Abstract Phlebotomine sandflies have considerable importance in the transmission of the etiological agents of diseases, such as bartonellosis, arboviruses, and especially visceral and cutaneous leishmaniasis, diseases present in the city of Goiás. In order to know the population of sand flies in this locality, collections of these insects have been taken in the urban area of the city of Goiás. CDC traps were placed throughout the urban area between September 2012 and August 2013, in the last weekend of each month, for three consecutive nights. In addition to capturing insects, we collected humidity, precipitation and temperature data. The results obtained through Pearson test showed a weak relationship between the amount of gathered sand flies with humidity. A total of 342 sand flies were collected, belonging to eight species: Lutzomyia longipalpis, Nyssomyia whitmani, Nyssomyia intermedia, Evandromyia lenti, Psathyromyia shannoni, Micropygomyia peresi, Evandromyia bacula and Micropygomyia goiana. This is the first record of Ev. bacula, Mi. peresi and Mi. goiana to the city of Goiás.

摘要：白蛉（Phlebotomine sandflies）在多种疾病病原体的传播过程中发挥着重要作用，其所传播的疾病涵盖巴尔通体病、虫媒病毒病，尤以内脏利什曼病与皮肤利什曼病为重，此类疾病在戈亚斯市均有分布。为明确该区域白蛉的种群情况，研究人员于戈亚斯市城区开展了该类昆虫的采集工作。2012年9月至2013年8月期间，研究人员在每月最后一个周末连续三晚，在全市城区布设CDC型诱捕器（CDC traps）开展采集。除捕获白蛉样本外，研究团队还同步收集了湿度、降水量与气温数据。通过皮尔逊相关性检验（Pearson test）分析结果显示，采集到的白蛉数量与湿度仅存在弱相关性。本次研究共采集到白蛉342只，隶属于8个物种：长须罗蛉（Lutzomyia longipalpis）、惠特曼尼白蛉（Nyssomyia whitmani）、中间白蛉（Nyssomyia intermedia）、伦蒂伏革蛉（Evandromyia lenti）、香农帕氏蛉（Psathyromyia shannoni）、佩雷西微臀蛉（Micropygomyia peresi）、杆状伏革蛉（Evandromyia bacula）以及戈亚斯微臀蛉（Micropygomyia goiana）。其中杆状伏革蛉（Ev. bacula）、佩雷西微臀蛉（Mi. peresi）与戈亚斯微臀蛉（Mi. goiana）为戈亚斯市的首次记录。