No pressure. They released the silvery blues (Glaucopsyche lygdamus) at the Presidio dunes, behind a former military hospital turned luxury apartment complex. Like the butterfly, the landscape wasn’t ...

Fig. 2. PSMC plot of one Xerces Blue (Glaucopsyche xerces) (L05) specimen and one Silvery Blue specimen (Glaucopsyche lygdamus). The two historical samples are those with higher average coverage.

In a 2000 essay titled, “Resurrection Ecology: Bring Back the Xerces Blue!” Pyle noted that a subspecies of the silvery blue butterfly (Glaucopsyche lygdamus) living in Southern California, on Santa ...

LFLPOL/ via Getty Images In 1983, the localized subspecies of silvery blue (G. lygdamus), the Palos Verdes Blue (G. l. palosverdesensis) was thought to have gone extinct. Only a short period of time ...

Revised: This Reviewed Preprint has been revised by the authors in response to the previous round of peer review; the eLife assessment and the public reviews have been updated where necessary by the ...

A previous study, in 2022, recovered mitochondrial DNA from a specimen of the Xerces Blue butterfly and compared it to that of the Silvery Blue butterfly (Glaucopsyche lygdamus), its closest ...

Palos Verdes Blue butterflies (Glaucopsyche lygdamus palosverdesensis) are among the rarest in the United States. Native only to the Palos Verdes Peninsula in California, they were nearly extinct.

But they were divided over whether Xerces was its own distinct species, a subspecies of the widespread silvery blue butterfly Glaucopsyche lygdamus, or even just an isolated population of silvery ...

It’s been roughly 80 years since the Xerces blue butterfly was last spotted flitting about on pastel wings across coastal California sand dunes. But scientists are still learning about the insect.

Many of the butterflies found in Spain are well known as they are common around much of Europe. There are however several species that are unique to Spain. Whereas some species are sedentary, ...

Due to a planned power outage on Friday, 1/14, between 8am-1pm PST, some services may be impacted. A line drawing of the Internet Archive headquarters building façade. An illustration of a magnifying ...