Australian Dragonfly (Odonata) Larvae: Descriptive history and identification

Abstract

Staples D.A. 2014. A reassessment of the Pycnogonid Genus Stylopallene (Arthropoda, Callipallenidae) with description of a new genus. Memoirs of the Museum of Victoria 72: 121-129.The genus Stylopallene comprising only four species is reviewed. All species are recorded from Australia, predominantly from the southern and south-eastern coastlines in association with arborescent bryozoans. Sexual dimorphism in the scape segments is recognized in the genus for the first time. The status of Stylopallene dorsospinum is re-evaluated and assigned to the new genus Bamberene. A diagnosis of the new genus is provided along with additional images to complement existing figures.

Generic revision of Argiolestidae (Odonata), with four new genera

“…Larva. A key to distinguish larvae of the genus Archiargiolestes from those of other Australian Argiolestidae can be found in Theischinger (1998a), Theischinger & Hawking (2006) and in Theischinger & Endersby (2009). Characters to distinguish the individual species of Archiargiolestes are not known.…”

“…The three species of this genus are limited to the south-western corner of Australia (Figure 8a). Distribution maps of the species can be found in Theischinger & Endersby (2009) and a more detailed map with discussion on their distribution is available in Watson (1977). Archiargiolestes pusillus is the most widespread, ranging further inland than A. parvulus and A. pusillissimus.…”

“…Theischinger (1998a) gives a definition of the genus based on adult and larval characters and compares it with other Australian genera of Argiolestidae. A key to the species can be found in Theischinger & O'Farrell (1986), Watson et al (1991) and Theischinger & Endersby (2009). Theischinger & Hawking (2006) include pictures of all species.…”

“…The ranges of the other species are much smaller. Maps of the species can be found in Theischinger & Endersby (2009).…”

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“…The net was drag on the vegetation along the river bank and all the larvae were placed in plastic bag and brought to the laboratory insulated for sorting process. The specimens were identified in the laboratory under a dissecting microscope Olympus CX41 (Olympus, Tokyo, Japan) following keys and description by Cham (2012) and Theischinger and Endersby (2014). The following three Damselflies larvae species occurred in the three selected rivers: Pseudagrion microcephalum, Pruinsoum fraseri (Odonata : Coenagrionidae), Copera marginipes (Odonata : Platycnemididae.…”