of a single genus in our area . Hok Tau, Wu Kau Tang, Bride’s Pool, Sha Lo Tung, Mui Wo. As a result of this, larval sites are difficult to locate and study. Numbers . Common name "spiketail" comes from the females large spike (modified genital plate used as an ovipositor). Search scientific name: Advance search. Contact us to report errors. Distribution in Hong Kong: Mainly found in north New Territories, e.g. Flight period in Hong Kong: April to August Breeding takes place in May–June, with eggs being laid in the upper reaches of the streams. Flickr photos above were identified by the individual photographers but not reviewed by EoPS. C. bidentata breeds in mountain springs, and the larvae are benthic, living in the lowest reaches of the water. Below is a checklist of all the European dragonfly and damselfly species, with their English common names. Cordulegastridae is a relatively small family, with two genera and 10 species in North America. The nymphs are large and elongate with jagged palpal teeth, divergent wing sheaths, numerous long and short setae, and acutely tipped abdomen. Scientific name: Philoganga vetusta Habitat: woodland stream. Identification . Explanation of Names . Goldenrings . Larval development takes between three and five years, and can be slowed if cold weather causes the water to freeze. Body length: 57-73 mm. Abstract. Family Cordulegastridae (Spiketails) Other Common Names . Publisher Name Springer, Dordrecht; Print ISBN 978-0-7923-8670-4; Online ISBN 978-0-306-48380-6; eBook Packages Biomedical and Life Sciences Reference Module Biomedical and Life Sciences; Buy this book on publisher's site; Reprints and Permissions ... Cordulegastridae: Cordulegaster: Cordulegaster boltonii (Donovan, 1807) 80 : Cordulegaster trinacriae Waterston, 1976 : 81 : Cordulegaster heros Theischinger, 1979 : 82 9 spp. Checklist, scientific names. Odonata + Zygoptera + Lestoidea + Synlestidae + Megalestes irma major gyalsey + Lestidae + Indolestes cyaneus gracilis indicus ... + Cordulegastridae + Anotogaster basalis nipalensis Cordulagaster + Neallogaster hermionae + Libelluloidea + Corduliidae + Idionychidae + Idionyx corona saffronata