Short-Tipped Bluestreak (Lestoidea brevicauda)

The Short-Tipped Bluestreak (Lestoidea brevicauda) is a damselfly species of the family Lestoideidae, which contains 4 species in Australia.

The identification key to the family Lestoideidae consists of 3 couplets, 3 of which are pertinent to Lestoidea brevicauda. Click on the numbers on the right to display the corresponding couplets. Or click on the ALLin1 button to see all the relevant couplets together in a single, scrollable window.

#	Family	Species	Couplet No.
	Lestoideidae	Short-Tipped Bluestreak (Lestoidea brevicauda)	Lestoideidae: Key couplet 1 of 3 ● Anal vein vestigial, free of wing margin for less than one third distance from Ac to crossvein at end of quadrilateral cell ● Inferior appendage of male much shorter than superior appendage ● Posterior lobe of female pronotum abruptly angled about half way to outer corner b ↑ Lestoideidae: Key couplet 2 of 3 ● Male superior anal appendages almost perpendicularly bent ventrad or their basal and apical portion including a moderately wide angle ● Basal portion stout and with substantial ventral tooth, apex not distinctly truncate ● Inferior appendages with end-lobe not well defined and shorter ● Female pronotum with medial portion of posterior lobe wide and widely rounded, the lateral margins broad and markedly upturned b ↑ Lestoideidae: Key couplet 3 of 3 ● Male superior anal appendages almost perpendicularly bent ventrad ● Inferior appendages with end-lobe short, claw-shaped ⇒ species: Short-Tipped Bluestreak (Lestoidea brevicauda) a ↑
1			Lestoideidae: Key couplet 1 of 3 ● Anal vein free of wing margin from Ac approximately one third or more of distance to crossvein at end of quadrilateral cell ● Inferior appendage of male almost as long as superior appendage ● Posterior lobe of female pronotum forming broad flange, not abruptly angulated, about half way to outer comer ⇒ species: Large Bluestreak (Lestoidea barbarae) a ↑ b ↓ ● Anal vein vestigial, free of wing margin for less than one third distance from Ac to crossvein at end of quadrilateral cell ● Inferior appendage of male much shorter than superior appendage ● Posterior lobe of female pronotum abruptly angled about half way to outer corner
2			Lestoideidae: Key couplet 2 of 3 ● Male superior anal appendages perpendicularly bent ventrad ● Basal portion slim and with small ventral tooth, apex distinctly truncate ● Inferior appendages with end-lobe well defined, rather long and slim ● Female pronotum with medial portion of posterior lobe, narrow, subtriangular to widely rounded, the lateral margins narrow and not markedly upturned ⇒ species: Common Bluestreak (Lestoidea conjuncta) a ↑ b ↓ ● Male superior anal appendages almost perpendicularly bent ventrad or their basal and apical portion including a moderately wide angle ● Basal portion stout and with substantial ventral tooth, apex not distinctly truncate ● Inferior appendages with end-lobe not well defined and shorter ● Female pronotum with medial portion of posterior lobe wide and widely rounded, the lateral margins broad and markedly upturned
3			Lestoideidae: Key couplet 3 of 3 ● Male superior anal appendages almost perpendicularly bent ventrad ● Inferior appendages with end-lobe short, claw-shaped ⇒ species: Short-Tipped Bluestreak (Lestoidea brevicauda) a ↑ b ↓ ● Basal and apical portion of male superior anal appendages including a moderately wide angle ● Inferior appendages with end-lobe not well defined, longer and not claw-shaped ⇒ species: Mount Lewis Bluestreak (Lestoidea lewisiana)