Matenaar Daniela, Bröder Linda, Hochkirch Axel
Department of Biogeography, Trier University, D-54286 Trier, Germany.
State Museum of Natural History Stuttgart, Department of Entomology, D-70191 Stuttgart, Germany.
Hereditas. 2016 Jan 15;153:1. doi: 10.1186/s41065-015-0005-6. eCollection 2016.
The grasshopper family Lentulidae is endemic to eastern and southern Africa, with its center of diversity situated in South Africa, the highest diversity being found in the Cape Floristic Region, which is one of the global biodiversity hotspots. The family consists of 35 genera sorted in two subfamilies. This study provides first insights into the phylogeny of Lentulidae. Two mitochondrial genes (12S and NDS) were sequenced and the phylogeny was inferred through Maximum Likelihood and Bayesian Inference.
Our results indicate that the current classification into the subfamilies Lentulinae and Shelforditinae may be incorrect as (Shelforditinae) and (Lentulinae) clustered together in one main clade, while and (all Lentulinae) formed the second main clade. The genera and , which had been assigned to the Acrididae (subfamily Hemiacridinae) in the past, grouped within the Lentulidae, confirming their current assignment to this family. The East African group is likely to represent a sister clade to the south African and . Diversification patterns in the genus and suggest a higher number of species than currently known.
Our phylogeny is not in line with the current systematics of Lentulidae, suggesting that a broader sampling and a study of the genitalia would be useful to clarify the taxonomy. Furthermore, some genera (particularly and ) are in need of taxonomic revision, as the number of species within these genera is likely to be higher than the current taxonomy suggests.
蝗科Lentulidae仅分布于非洲东部和南部，其多样性中心位于南非，在全球生物多样性热点地区之一的开普植物区系中具有最高的多样性。该科由35个属组成，分为两个亚科。本研究首次对Lentulidae的系统发育进行了深入研究。对两个线粒体基因（12S和NDS）进行了测序，并通过最大似然法和贝叶斯推断法推断系统发育。
我们的结果表明，目前将其分为Lentulinae亚科和Shelforditinae亚科的分类可能不正确，因为（Shelforditinae）和（Lentulinae）聚集在一个主要分支中，而和（所有Lentulinae）形成了第二个主要分支。过去被归入蝗科（Hemiacridinae亚科）的属和，在Lentulidae科中聚为一类，证实了它们目前归属于该科。东非的类群可能是南非和类群的姐妹分支。属和属的多样化模式表明其物种数量比目前已知的要多。
我们的系统发育与Lentulidae目前的分类系统不一致，这表明更广泛的采样和对生殖器的研究将有助于澄清分类学。此外，一些属（特别是和）需要进行分类修订，因为这些属内的物种数量可能比目前的分类学所显示的要多。
