Celastrina echo nigrescens
(J.Fletcher, 1903)
Northwestern Azure
Celastrina echo nigrescens, the Northwestern Azure, is a of the western azure in the Lycaenidae. It is currently recognized as a synonym of Celastrina ladon. The subspecies was described by J. Fletcher in 1903. Like other azure butterflies, it is associated with specific plants including California buckeye (Aesculus californica).
Pronunciation
How to pronounce Celastrina echo nigrescens: //sɛˈlæstrɪnə ˈɛkoʊ nɪˈɡrɛsɛnz//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Host Associations
- Aesculus californica - HOST_PLANTCalifornia buckeye; larval plant for this
Similar Taxa
- Celastrina echoParent ; C. echo nigrescens was described as a of this western azure species
- Celastrina ladonCurrent accepted name; C. echo nigrescens is listed as a synonym of this in GBIF
More Details
Taxonomic Status
GBIF lists this as a synonym of Celastrina ladon (the Spring Azure). The subspecies was originally described by Fletcher in 1903.
Conservation Context
The parent Celastrina echo (western azure) has experienced declines, with the broader azure group being discussed at conservation summits for declining populations in western North America.
Sources and further reading
- BugGuide
- GBIF taxonomy match
- iNaturalist taxon
- Encyrtid Holdings | Entomology Research Museum
- A Summit to Save the Butterflies | Bug Squad
- Alydidae | Beetles In The Bush
- Nomenclatural changes in Phymatodes | Beetles In The Bush
- Working with Cerceris fumipennis—Epilogue | Beetles In The Bush
- Bug Eric: Flying Ants