Department of Entomology, University of California, Riverside, CA 92521, USA.
J Med Entomol. 2010 Jan;47(1):106-10. doi: 10.1603/033.047.0115.
An enclosure trapping experiment compared numbers and engorgement of Culicoides spp. taken from treated sheep (7.5% deltamethrin) to Culicoides from untreated sheep. Attack rates were low (0.2/min), but 58% of Culicoides obsoletus s.l. and 67% of Culicoides parroti Kieffer engorged on untreated sheep, and no engorgement occurred on treated sheep on 0 and 4 d posttreatment. A UV light trap in a livestock barn collected eight Culicoides spp. (510 individuals), dominated by C. obsoletus (Meigen) (68%), Culicoides imicola Kieffer (19%), Culicoides circumscriptus Kieffer (8%), and Culicoides alazanicus Dzhafarov (4%). A more powerful but nonattractive fan trap collected five species (121 individuals) dominated by C. obsoletus (48%), C. imicola (36%), C. alazanicus (8%), and C. circumscriptus (7%). Parity of C. obsoletus and C. imicola did not vary between the light and fan traps. Engorged Culicoides in the barn (33 C. obsoletus and three C. imicola) had fed on sheep or goats (precipitin test).
圈捕实验比较了从处理过的绵羊（7.5%溴氰菊酯）和未处理的绵羊中捕获的库蠓数量和饱血情况。攻击率较低（0.2/分钟），但 58%的拟长角库蠓和 67%的巴氏库蠓在未处理的绵羊上饱血，而在处理后的绵羊上，处理后 0 天和 4 天没有发生饱血。牲畜棚中的紫外线诱捕器收集了 8 种库蠓（510 只），以拟长角库蠓（梅根）（68%）为主，伊氏库蠓（19%）、围鞘库蠓（8%）和阿扎兰库蠓（4%）。一个功率更大但无吸引力的风扇捕集器收集了五种物种（121 只），以拟长角库蠓（48%）、伊氏库蠓（36%）、阿扎兰库蠓（8%）和围鞘库蠓（7%）为主。拟长角库蠓和伊氏库蠓的交配率在灯光和风扇捕集器之间没有差异。棚内饱血的库蠓（33 只拟长角库蠓和 3 只伊氏库蠓）曾吸食过绵羊或山羊（沉淀试验）。
