Orencostoma

Orencostoma
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Yponomeutidae
Genus:	Orencostoma Moriuti, 1971
Type species
Orencostoma bicornigerum Moriuti, 1971

Orencostoma is a small genus of ermine moths in the family Yponomeutidae. The genus was erected by Sigeru Moriuti in 1971 for the type species O. bicornigerum from Kashmir, India. ^{[1] [2]} Two additional species from northern China were described in 2019, expanding the known range of the genus into East Asia. ^[3]

Species

The following species are currently placed in Orencostoma: ^{[1] [4]}

• Orencostoma bicornigerum Moriuti, 1971 – type species; described from Gulmarg, Kashmir (India). ^{[1] [2]}
• Orencostoma divulgatum Wang in Lou, Li & Wang, 2019 – described from Mt. Baxian, Tianjin (China). ^[3]
• Orencostoma semicirculum Wang in Lou, Li & Wang, 2019 – described from Mt. Qian, Anshan (Liaoning, China). ^[3]

Distribution

Records currently span the western Himalaya (Kashmir) and northern China (Tianjin and Liaoning), based on the original description and subsequent Chinese material. ^{[1] [3]}

References

1. Moriuti, Sigeru (1971). "Two new genera and a new species of the Indian Yponomeutidae (Lepidoptera)". Kontyû. 39 (3): 251–255 – via CiNii/NDL.
2. "Orencostoma Moriuti, 1971". Global Lepidoptera Names Index. Natural History Museum, London. Retrieved 1 September 2025.
3. Lou, Kang; Li, Juan; Wang, Shu-Xia (24 January 2019). "First report of the genus Orencostoma Moriuti (Lepidoptera: Yponomeutidae) from China, with descriptions of two new species". Zoological Systematics. 44 (1): 76–83. doi:10.11865/zs.201902.
4. "Orencostoma Moriuti, 1971". GBIF Backbone Taxonomy. Global Biodiversity Information Facility. Retrieved 1 September 2025.