Jalmenus daemeli

{{Short description|Species of butterfly}}

{{Speciesbox

| image = Jalmenus daemeli (ento-csiro-au).jpg

| genus = Jalmenus

| species = daemeli

| authority = Semper, 1879

| synonyms = *Ialmenus daemeli Semper, 1879

• Ialmenus illidgei Lucas, 1889

}}

Jalmenus daemeli, the Daemel's blue, Dämel's blue or emerald hairstreak, is a butterfly of the family Lycaenidae, and was first described in 1879 by Georg Semper{{Cite web |title=Australian Faunal Directory: Jalmenus daemeli |url=https://biodiversity.org.au/afd/taxa/Jalmenus_daemeli |access-date=2022-09-17 |website=biodiversity.org.au |language=en}}Semper, G. 1879. [https://www.biodiversitylibrary.org/page/44116643#page/344/mode/1up Beitrag zur Rhopalocerenfauna von Australien]. Journal des Museum Godeffroy, Hamburg V(14): 138–194 pls 8, 9 [dated 1878] [166]. It is endemic to the Australian states of New South Wales and Queensland, where it is found in coastal areas. It is named after Eduard Dämel, the collector of the type series (with Amalie Dietrich).

The wingspan is about 2 cm.

The larvae feed on a wide range of plants, including Acacia species, Eucalyptus melanophloia and Heterodendrum diversifolium.{{Cite web |title=Jalmenus daemeli |url=http://lepidoptera.butterflyhouse.com.au/lyca/daemeli.html |access-date=2022-09-17 |website=lepidoptera.butterflyhouse.com.au}}

The caterpillars are attended by the ant species Iridomyrmex rufoniger.