A New Stomatosema from the Australian Tropics - The First Species of Stomatosematidi (Diptera: Cecidomyiidae) Known to Cause a Plant Gall

IF 0.4 4区农林科学 Q4 ENTOMOLOGY

Proceedings of the Entomological Society of Washington Pub Date : 2022-12-08 DOI:10.4289/0013-8797.124.3.527

P. Kolesik, Luke Halling

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引用次数: 0

Abstract

Abstract. Stomatosematidi are by far the smallest of the four supertribes of Cecidomyiinae (Diptera: Cecidomyiidae) containing 56 species. The life history of only one species has been known previously: adults of Stomatosema nemorum Kieffer were reared from larvae feeding on a mushroom, Lactarius sp. (Fungi: Russulaceae). Here we describe the larva and adults of a new species, Stomatosema gagnei Kolesik, that was found inducing pustulate leaf galls on Causonis trifolia (Vitaceae) plants in Cape York Peninsula, Australia. Stomatosema gagnei is the first Stomatosematidi with a described larva and the first known to cause a gall. The fact that a species of Stomatosematidi, a supertribe hypothesized to be the sister group to all remaining Cecidomyiinae, was found inducing a plant gall suggests that the first of the transitions from the ancestral fungus-feeding habit to plant-feeding occurred in Cecidomyiidae at the base of the Cecidomyiinae clade more than 100–110 million years ago, during the lower Cretaceous.

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澳大利亚热带的一种新气孔虫——已知引起植物胆囊的第一种气孔虫（直翅目：Cecidomyiidae）

摘要到目前为止，气孔虫是Cecidomyiinae（Diptera：Cecidomiidae）四个超科中最小的一个，共有56种。以前只知道一个物种的生活史：nemorum Kieffer气孔菌的成虫是由以蘑菇Lactarius sp.（真菌：红菇科）为食的幼虫饲养的。在这里，我们描述了一个新物种，Stomatosema gagnei Kolesik的幼虫和成虫，该物种被发现在澳大利亚约克角半岛的三叶草（维他科）植物上诱导脓疱性叶胆。gagnei气孔虫是第一种有幼虫的气孔虫，也是已知的第一种引起胆囊的气孔虫。Stomatosematidi是一个被假设为所有现存Cecidomyiinae的姐妹群的超级部落，它被发现会诱发植物胆汁，这一事实表明，从祖先的真菌食性到植物食性的第一次转变发生在1亿至1.1亿年前的白垩纪下统，Cecidomiiinae分支的底部。

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来源期刊

Proceedings of the Entomological Society of Washington 生物-昆虫学

CiteScore

0.90

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： The Proceedings of the Entomological Society of Washington is published four times a year in January, April, July, and October. The journal publishes on all aspects of original research in entomology. Subject matter includes systematics, taxonomy, biology, behavior, ecology, morphology, genetics, and other topics.