Abstract:
Phlebotomine sand flies are crepuscular and nocturnal small dipteran insects in the family Psychodidae. Several disease agents, including Leishmania parasites, are transmitted to humans and other vertebrate hosts by the bite of an infected female sand fly. As part of leishmaniasis surveillance programs, light traps have been routinely used in sand fly collections. In this context, new trapping devices are always being required to improve vector monitoring. Here, the efficiency of a new suction light trap, named Silva suction trap or SS trap, was field evaluated in collecting sand flies. Two SS traps, one with green (520 nm, 15,000 mcd) and the other with white (wide spectrum, 18,000 mcd) LEDs, and one CDC-type trap were deployed in a rural forested environment. A total of 4686 phlebotomine sand flies were captured. The most frequent species were females of the Ps. Chagasi series (77.8%) followed by males of Ps. wellcomei (11.6%), Nyssomyia whitmani (3.3%), and Bichromomyia flaviscutellata (2.4%). The CDC-type light trap collected 101.9 ± 20.89 sand flies and 14 species, followed by the white-baited SS trap (87.78 ± 16.36, 14), and the green-baited SS trap (70.61 ± 14.75, 15), but there were no statistically significant differences among traps. A discussion on the considerable advantages of the use of SS traps over CDC traps is included. In this study, the Silva suction trap proved to be efficient and can be an alternative to CDC traps for monitoring adult phlebotomine sand fly populations.
摘要:
Phlebotomine沙蝇是精神病科中的黄昏和夜间小双翅目昆虫。几种疾病病原体,包括利什曼原虫寄生虫,通过受感染的雌性沙蝇的叮咬传播给人类和其他脊椎动物宿主。作为利什曼病监测计划的一部分,光陷阱通常用于收集沙蝇。在这种情况下,一直需要新的诱捕装置来改善媒介监测。这里,一个新的吸光阱的效率,命名为席尔瓦吸水疏水阀或SS疏水阀,在收集沙蝇时进行了现场评估。两个SS陷阱,一个绿色(520nm,15,000mcd),另一个带有白色(宽光谱,18,000mcd)LED,在农村森林环境中部署了一个CDC型陷阱。共捕获了4686只次生沙蝇。最常见的物种是P的雌性。Chagasi系列(77.8%),其次是PS的男性。威科米(11.6%),惠特曼睡眠症(3.3%),和黄叶双色菌(2.4%)。CDC型光阱收集了101.9±20.89沙蝇和14种,其次是白色诱饵的SS陷阱(87.78±16.36,14),和绿色诱饵的SS陷阱(70.61±14.75,15),但是陷阱之间没有统计学上的显着差异。讨论了使用SS陷阱相对于CDC陷阱的显着优势。在这项研究中,席尔瓦吸水诱捕器被证明是有效的,可以替代CDC的诱捕器,用于监测成年的放血沙蝇种群。