Hemicorduliidae

Australian emerald Hemicordulia australiae, copyright Fir0002/Flagstaffotos.

Belongs within: Eteoanisoptera.

The Hemicorduliidae, round-winged emeralds, are a group of small to medium-sized dragonflies most commonly black and yellow in coloration (Theischinger & Hawking 2006).

Characters (from Theischinger & Hawking 2006): Forewing with hypertriangles generally free; bridge crossvein aligned with subnodus. Males with tibial keels. Larvae with ladle-shaped labium with premental and palpal setae, well-developed palpal dentations bearing groups of setae; prementum with distinct ventro-basal midline or groove; legs long; abdominal segment 10 somewhat sunken into segment 9.

<==Hemicorduliidae
    |--Procordulia TH06
    |    |--P. affinis (Selys 1871) TH06
    |    |--P. grayi (Selys 1871) HL02
    |    |--P. jacksoniensis (Rambur 1842) TH06
    |    `--P. smithii (White 1846) HL02
    `--Hemicordulia TH06
         |--H. australiae (Rambur 1842) TH06
         |--H. continentalis Martin 1907 TH06
         |--H. flava Theischinger & Watson 1991 TH06
         |--H. intermedia (Selys 1871) TH06
         |--H. kalliste Theischinger & Watson 1991 TH06
         |--H. koomina Watson 1969 TH06
         |--H. mindana I92
         |    |--H. m. mindana I92
         |    `--H. m. nipponica Asahina 1980 I92
         |--H. novaehollandiae (Selys 1871) TH06
         |--H. ogasawarensis Oguma 1913 I92
         |--H. okinawensis Asahina 1947 I92
         |--H. superba Tillyard 1911 TH06
         `--H. tau (Selys 1871) TH06

*Type species of generic name indicated

REFERENCES

[HL02] Haacks, M., & A. Lehmann. 2002. Some observations on dragonflies (Insecta: Odonata) throughout New Zealand. Weta 24: 13-17.

[I92] Iwahashi, J. (ed.) 1992. Reddo Deeta Animaruzu: a pictorial of Japanese fauna facing extinction. JICC: Tokyo.

[TH06] Theischinger, G. & J. Hawking. 2006. The Complete Field Guide to Dragonflies of Australia. CSIRO Publishing: Collingwood (Victoria).