![]() elegans, no study has screened for Wolbachia in the damselfly genus Ischnura. Although there is accumulating data on the consequences of such expansion on the genetic of I. The common bluetail damselfly (Ischnura elegans: van der Linden, 1820) has recently emerged as a model organism of the genetics and genomic signatures of range expansion during climate change. hitchhike), resulting in low mitochondrial genetic variation across the host species range. Under sufficient selective advantage, the mitochondrial haplotype associated with the favoured symbiotic strains will spread (i.e. ![]() Wolbachia typically spreads within host species by conferring direct fitness benefits, or by manipulating its host reproduction to favour infected over uninfected females. The maternally inherited bacterium Wolbachia is among the most widespread symbionts in insects. ![]() ![]() Investigating these genetic patterns is important, as they may reveal obscured processes and players. Localities marked in yellow were used for morph-frequency estimation.īackground Evolutionary processes can cause strong spatial genetic signatures, such as local loss of genetic diversity, or conflicting histories from mitochondrial versus nuclear markers. (d) Localities surveyed by the Cyprus Dragonfly Study Group, between January 2013 and December 2019. I-and O-females also differ from males and A-females in that the former two conceal the abdominal blue patch over the course of adult development, so that it is no longer visible in sexually mature individuals. (c) Only one genotype (rr) gives rise to O-females, which unlike males and the two other female morphs lack antehumeral stripes. (b) The I-female morph results from two genotypes (qq and qr) and is markedly different from males and A-females when sexually mature. (a) The dominant allele (p) drives the development of male-coloured A-females, thought to be male-mimics. A heritable colour polymorphism controlled by a single locus or set of tightly linked loci is expressed only in females. Can appear as early as August, right through until April.įor readers in western Victoria, if you spot a dragonfly or damselfly not on this list, the Nature Glenelg Trust would love for you to get in touch at to record what, where and when.Colour variation and study localities of the Common Bluetail damselfly, Ischnura elegans, in Cyprus. At the base of the abdomen there is a blue shield marking. Slender ringtail ( Austrolestes analis) - Can be extremely abundant. The female could be confused with an ancient greenling. The male is orange to red with a blue tip to tail, while the female is a dark bottle green. Flying October until April.Īurora bluetail ( Ischnura aurora) – One of the smallest, slightly smaller than the greenling. Tends to bob up and down and fly in a haphazard manner. Medium sized with a 3cm wingspan and 2.5cm body length. Flies from October through until April.Ĭommon bluetail ( Ischnura heterosticta) – Mr Haywood prefers to call it the bobbing bluetail. Females have blue on them but are not as striking as males, and duller red in colour. The male is dark red, with blue tips to its tail. Red and blue damsel ( Xanthagrion erythroneurum) - Similar size to the blue ringtail. Generally it has a wingspan of 4.5cm and body length of 3.5cm. Still quite rare in Victoria and not a secure population.The male wags its tail and because it has a white tip you can see it fairly clearly.īlue ringtail ( Austrolestes annulosus) - So named because the male has bright blue barring across its abdomen. Bottle green with a white tip to abdomen and white on their face. Male and female are essentially identical. What damselfly is that?Īncient greenling ( Hemiphlebia mirabilis) - Wingspan is 2cm and body 2.5cm. One of the few dragonflies you can find out in the middle of the bush and some distance from water. The male is red, the female is black and yellow. Wandering percher ( Diplacodes bipunctata) - Wingspan of 5cm and length of 3cm. Both the male and female have a bronze smudge towards the outside edges of their wings. The male is sky blue while the female is yellow and black, and are more camouflaged. More common even than the Australian emperor.īlue skimmer ( Orthetrum caledonicum) - Wingspan is 7cm and length 4cm. The most widespread and common dragonfly. Tau emerald ( Hemicordulia tau) - Medium-sized wingspan of 7cm and length of about 4.5cm. They can bite: they won't break skin but will give you a fright. When people think of a dragonfly they are probably thinking of Australian emperors when you see a swarm in late winter and early spring. The male has blue spots on the base of the tail, while the female has green spots.Īustralian emperor ( Anax papuensis) - Wingspan of 10cm and body length of 7cm. ![]() ( Supplied: Bryan Haywood) What dragonfly is that?īlue-spotted hawker ( Adversaeschna brevistyla) - Wingspan of about 9cm and body length about 6cm. ![]()
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