Status: - This species is considered, by some, to be potentially under threat. It can be found in East and West Eire and below a line drawn from Anglesey to the Thames Estuary. Its localized populations can be restricted by habitat constraints, though it has colonized a number of mineral and gravel extraction site seepages in recent decades.
Habitat: - Mineral rich warm and exposed seepages, runnels, shallow flushes and pools which are subject to disturbance by large herbivores or machinery. These water bodies are characterised by a lack of aquatic and terrestrial vegetation.
Flight period: - June, July and early August.
General: - Diminutive Blue Tail Damselflies (Ischnura elegans) can easily match Ischnura pumilio for size, increasing the risk of confusion between species. The specific habitat requirements restrict the locations where this species can be found. Local to a suitable site they can be abundant. They will be located flying low down amongst the limited amount of short vegetation in and adjacent to the chosen water body. Over aggressive disturbance can result in a strong vertical flight after which denser more prominent cover is sought. Females are often pursued and detained on the ground; there ensues a short struggle, after which the female generally agrees to copulate. Copulation can last well in excess of one hour. Females egg lay alone and not in tandem. The male may choose to stand guard while egg laying is in progress.