Siberian-elm
Guides
Stigmella multispicata
Stigmella multispicata is a pygmy moth in the family Nepticulidae, native to East Asia and invasive in eastern North America. It was first described from a single male holotype from Primorye, Russia in 2014, and subsequently identified as an established invasive species in North America through DNA barcoding that matched specimens from Beijing, China with adults found in the United States. The species is a leafminer specializing on Siberian elm (Ulmus pumila), distinguished by morphological features including a white collar, entirely dark antennae, and in females an elongated narrow ovipositor adapted for oviposition in hairy leaf vein axils. It is the only Ulmus-feeding nepticulid in North America with green larvae. First detected in North America around 2010, the species has since spread to ten US states and two Canadian provinces.