The Black-lined Skimmer, Orthetrum cancellatum, is a European dragonfly. The male has a blue abdomen with a black tip and transparent wings, and the female has a yellowish brown body with black zigzag marks along the abdomen and the transparent wings. This species has expanded its range, assisted by the creation of gravel pits which give it the extensive open unvegetated areas it prefers. It was first recorded in Great Britain in Essex in 1934. it is decreasing rapidly from the Maltese islands.
The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in the world. It is sometimes considered to contain the Corduliidae as the subfamily Corduliinae and the Macromiidae as the subfamily Macromiinae. Even if these are excluded (as Silsby does), there still remains a family of over 1000 species. With nearly worldwide distribution, these are almost certainly the most often seen of all dragonflies.
The Common Whitetail or Long-tailed Skimmer, Libellula lydia is a common dragonfly across much of North America, with a striking and unusual appearance. The male's chunky white body (about 5 cm long), combined with the brownish-black bands on its otherwise translucent wings, give it a checkered look. Females have a brown body and a different pattern of wing spots, closely resembling that of female Libellula pulchella, the Twelve-spotted Skimmer.
The red-veined darter (Sympetrum fonscolombii) is a dragonfly of the genus Sympetrum. It is a common species in southern Europe and from the 1990s onwards has increasingly been found in northwest Europe, including Britain and Ireland. Its name is sometimes spelt fonscolombei instead of fonscolombii but Askew (2004) gives the latter as the correct spelling. There is genetic and behavioural evidence that S.
The Broad-bodied Chaser, Libellula depressa, is a European dragonfly. The approximate wing-span of the broad-bodied chaser is 70 millimeters. It occurs in Europe except for the northern parts and in Asia eastwards to south-west Siberia. In Great Britain, it is mainly found in Wales and Southern England, active between the months of May and August.
The Common Darter (Sympetrum striolatum) is a dragonfly of the family Libellulidae native to Eurasia. It is one of the most common dragonflies in Europe, occurring in a wide variety of water bodies, though with a preference for breeding in still water such as ponds and lakes. Adults are on the wing from June until November - occasionally into December.
The Four-spotted Chaser (Libellula quadrimaculata), known in North America as the Four-spotted Skimmer, is a dragonfly of the family Libellulidae found frequently throughout Europe, Asia, and North America. The adult stage is found between April to early September in the United Kingdom, and from mid-May to mid-August in Ireland. Larvae have a two year developmental cycle.
The Keeled Skimmer, Orthetrum coerulescens, is a species of European dragonfly. This species resembles the Black-tailed Skimmer but is slimmer and the male has no black tip. Females and immature males lack the black abdominal pattern. The pterostigma is orange and the thorax usually bears pale stripes. It breeds mainly in peat bogs and flies from June to September.
The yellow-winged darter, Sympetrum flaveolum, is a dragonfly found in Europe and mid and Northern China. Breeding is confined to stagnant water, usually in peat bogs. Although not resident in the United Kingdom it occasionally migrates there in some numbers. Such 'Invasion Years' occurred in 1906, 1926, 1945, 1953, and 1995. On each occasion a small breeding colony appeared, but they have invariably died out after a few years.