Shen Collection, Middle Volume. Radical: Insect (chóng). Kangxi stroke count: 16. Page 1092, Entry 32.
Pronounced wēng.
According to the Jade Chapters (Yupian), the term yēwēng refers to a type of insect, a spider wasp with a slender waist. In the dialect dictionary titled Regional Speech (Fangyan) by Yang Xiong, it is noted that bees are called měngwēng in the regions of Yan and Zhao, while the smaller variety is called yēwēng.
Also, Yēwēng Pass is a place name. In the History of the Jin Dynasty (Jinshu), specifically the Records of Murong Huang, it is written that Huang led twenty thousand cavalry, exited Yēwēng Pass, and drove straight to Ji City.
Furthermore, wēng refers to an insect that breeds within the skin of cattle and horses. In a poem by Emperor Wen of the Liang dynasty, he writes: Holding the bowstring using the blood of a magpie, pulling the reins using the ox-wēng.
Additionally, according to the Classified Chapters (Leipian), it is pronounced wěng. The meaning is the same.