Myrmeleon shalulianus sp. nov. (Neuroptera: Myrmeleontidae), and the first record of Taiwanon bee fly (Diptera: Bombyliidae) on Myrmeleon trigonois in China

Abstract: The antlion species Myrmeleon trigonois Bao & Wang, 2006 is endemic to Chinese mainland; it has pronotum with a pair of pale yellow spots, and modified ectoproct, forming a hook-like projection posteroventrally. Based on morphological comparison and molecular evidence, we found that all paratypes of M. trigonois represent a different species than its holotype. Here, Myrmeleon shalulianus Zheng & Liu, sp. nov., is described to accommodate all paratypes of M. trigonois and a series of newly supplemented specimens from Yunnan (China). The distribution pattern of these two species is clarified. Larvae of both M. trigonois and M. shalulianus sp. nov. are described and compared. Furthermore, the bee fly parasitoid (Diptera: Bombyliidae) of the genus Taiwanon Evenhuis, 2018 was reared from the immature stages of M. trigonois in an artificial environment. Taiwanon is newly recorded from the Chinese mainland.

Key words: Neuroptera, Myrmeleontoidea, Myrmeleontidae, Myrmeleontini, Diptera, Bombylidae, Anthracinae, DNA barcoding, larval description, new species, parasitoid, China, Oriental Region