Description of the immatures of Linepithema humile Mayr (Hymenoptera: Formicidae).
Description of the immatures of Linepithema humile Mayr (Hymenoptera: Formicidae).
复制标题
Linepithema humile Mayr 幼虫的描述（膜翅目：蚁科）。
DOI：
10.4067/s0716-97602010000100004
复制
发表时间：
2010
影响因子：
6.7
通讯作者：
O. Bueno
中科院分区：
文献类型：
--
作者：
Daniel Solís;E. Fox;M. Rossi;O. Bueno
Linepithema humile Mayr是一种原产于南美洲的蚂蚁，通过国际贸易在全球范围内偶然传播。它是一种严重的城市和农作物害虫。尽管它具有重要的经济意义，但除了基于少数标本的简短描述外，对该物种的幼虫知之甚少。本研究的目的是描述每一个未成熟的阶段。以525只幼虫为样本，通过头囊最大宽度的频率分布确定了3个幼虫龄。通过光镜和扫描电镜对150个卵、70个幼虫和90个蛹进行了形态学描述。证实了麦氏线霉幼虫的一些典型形态特征——椭圆体形，存在背凸，单体毛稀疏，存在九对气门和椭圆体形下颌骨。我们得出的结论是，早期发表的描述是基于后幼虫的，而突起只存在于工蜂幼虫中。本研究提供的信息可能有助于蚂蚁系统学和系统发育，以及更好地了解该物种的生物学。
Linepithema humile Mayr is an ant species originally native to South America that has been spread accidently throughout the globe through international trade. It is a serious urban and crop pest. Despite its economic importance, little is known about the larvae of this species apart from a brief description based on a few specimens. The present investigation is aimed at describing every immature stage of L. humile. Three larval instars were determined through the frequency distribution of the maximum width of head capsules from a sample of 525 larvae. The morphological descriptions were based on 150 eggs, 70 larvae, and 90 pupae examined by light and scanning electron microscopy. Some morphological characteristics reported to be typical of Linepithema Mayr larvae were confirmed--dolichoderoid body shape, presence of dorsal protuberance, sparse simple body hairs, presence of nine pairs of spiracles and dolichoderoid mandibles. We concluded that an earlier published description was based on queen larvae, and that the protuberance is only present in worker larvae. The information provided in this study may aid ant systematics and phylogenetics, as well provide a better understanding of the biology of this species.