Peng Y, Platzer E G, Song J, Peloquin L
Department of Parasitology, University of California, Riverside.
Hua Xi Yi Ke Da Xue Xue Bao. 1992 Sep;23(4):412-5.
A new species of Mermithidae was found parasitizing the larvae of Culex tritaeniorhynchus and Culex fatigans in Henan, China and then named Romanomermis yunanensis. Thirty-one species of Mosquitoes involving six genera have been tested for susceptibility to R. yunanensis and Culicinae mosquito have consistently been highly susceptible. At a 1:5 ratio of mosquito larvae to nematode juveniles, the parasitisms of Aedes aegypti, Ae. albopictus, Culex fatigans, Culex tritaeniorhynchus, Anopheles sinensts, Psorophora columbiae and Culesta inornata were 98.2%, 98.5%, 98.6%, 97.1%, 0%, 98.8%, and 99.0% respectively. R. yunanensis presented a phenomenon of retarted development in Anopheles maculatus, which remained at the parasitic stage both in the larvae and pupa of An. maculatus. The parasitism of An. dirus was 89.7%, but most (88.8%) parasitizing mermithids underwent melanization and died. The comparative susceptibility of some North American mosquitoes to R. yunanesis and R. culicivorax at a 1:5 infective ratio showed that both percentage infection and intensity of infection statistically supported the generalization that, under laboratory conditions, R. yunanesis is a more vigorous and aggressive parasite of Culicinae.
在中国河南发现一种寄生于三带喙库蚊和致倦库蚊幼虫的新索线虫物种，随后将其命名为云南罗索线虫。对涉及6个属的31种蚊虫进行了对云南罗索线虫的易感性测试，库蚊亚科蚊虫一直高度易感。在蚊幼虫与线虫幼体为1:5的比例下，埃及伊蚊、白纹伊蚊、致倦库蚊、三带喙库蚊、中华按蚊、哥伦比亚骚蚊和无饰库蚊的寄生率分别为98.2%、98.5%、98.6%、97.1%、0%、98.8%和99.0%。云南罗索线虫在黄斑按蚊中呈现发育迟缓现象，在黄斑按蚊幼虫和蛹期均处于寄生阶段。大劣按蚊的寄生率为89.7%，但大多数（88.8%）被寄生的索线虫发生黑化并死亡。一些北美蚊虫在1:5感染比例下对云南罗索线虫和食蚊罗索线虫的比较易感性表明，感染率和感染强度在统计学上均支持以下普遍结论：在实验室条件下，云南罗索线虫是库蚊亚科更具活力和攻击性的寄生虫。
