Background & objectives: Sikkim is a part of Eastern Himalayan biodiversity hotspot of India rich in bamboo flora harbouring over 30 different bamboo species. The present study was aimed to investigate the larval mosquito diversity in the bamboo stumps of Gangtok, Sikkim. Besides, efforts were also made to evaluate the propensity of particular species of mosquito towards specific bamboo species (if any).
Methods: A total of 75 bamboo stumps of four genera were surveyed and screened at five different sampling sites of Gangtok from July to October 2017. Mosquito species similarity between the five sampling sites and the four varieties of bamboo species was calculated using the Bray-Curtis similarity index.
Results: A total of 216 larvae were collected from 25 different bamboo stumps studied. The species identified were Aedes albopictus, Ae. atlanticus, Ae. aegypti, Orthopodomyia signifera, Oclerotatus japonicus, Oc. taeniorhynchus, Armigeres subalbatus, and Toxorhynchites splendens. The Oc. japonicus (34.5%) was found to be the most abundant species having distribution in Phyllostachys assamica, Dendrocalamus hamiltonii and Bambusa nutans. On the other hand, genus Armigeres subalbatus and Tx. splendens were found to breed only in the stumps of P. assamica. Based on Bray-Curtis similarity index highest species similarity was recorded between D. hamiltonii and P. assamica bamboo species.
Interpretation & conclusion: The study may help to understand the bioecology of the mosquito larvae which may help to devise suitable mosquito control programmes. Future studies including the survey of large number of bamboo stumps both in urban and rural areas of Sikkim may provide better insight into the mosquito diversity in the bamboo stumps of Sikkim.

中文翻译：

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印度锡金竹桩蚊虫繁殖种类组成

背景与目标：锡金是印度喜马拉雅东部生物多样性热点地区的一部分，拥有丰富的竹群，拥有 30 多种不同的竹种。本研究旨在调查锡金甘托克竹桩中蚊子幼虫的多样性。此外，还努力评估特定种类的蚊子对特定竹种（如果有的话）的倾向。
方法： 2017 年 7 月至 10 月，在甘托克五个不同采样点共调查筛选了 4 个属 75 根竹桩，利用 Bray-Curtis 计算了 5 个采样点与 4 个竹种的蚊种相似度。相似指数。
结果：从所研究的 25 个不同的竹桩中总共收集了 216 只幼虫。鉴定的物种是白纹伊蚊（Aedes albopictus，Ae）。大西洋，Ae。aegypti, Orthopodomyia signifera, Oclerotatus japonicus, Oc. taeniorhynchus、Armigeres subalbatus和Toxorhynchites splendens。该的Oc。japonicus (34.5%) 被发现是分布在Phyllostachys assamica、Dendrocalamus hamiltonii和Bambusa nutans 中最丰富的物种。另一方面，属Armigeres subalbatus和Tx。发现splendens仅在P. assamica的树桩中繁殖。基于 Bray-Curtis 相似度指数最高的物种相似度被记录在D. hamiltonii和P. assamica竹种。
解释和结论：该研究可能有助于了解蚊子幼虫的生物生态学，这可能有助于设计合适的蚊子控制方案。未来的研究包括对锡金城市和农村地区大量竹桩的调查，可能会更好地了解锡金竹桩中蚊子的多样性。