2. und 3. Abdominalsegment bei Libellen. 195 



TiLLYAED, E,. T., 1909, Studies in the life-histories of Australian Odonata. 

 I. The life-history of Petalura gigantea Leach, in : Proc. Linn. Soc. 

 New South Wales, Vol. 34, p. 256—267, tab. 24, 1 Fig. 



— , 1910, Monograph of the genus Synthemis. ibid., Vol. 35, p. 312 — 377, 

 5 Tafif., 13 Figg. 



TÜMPEL, R., 1901, Die Geradflügler Mitteleuropas, Eisenach. 



VAN DER Weele, H. W., 1906, Morphologie und Entwickelung der 



Gonapophysen der Odonata , in : Tijdschr. Entomol. , Vol. 49, 



p. 99—198, 3 Taff. 

 Walkee, E. M., 1912, The North American Dragonflies of the genus 



Aeshna, in: University of Toronto Studies, Biol. Series, vill + 213 pp., 



tab. 1—28. 

 Williamson, E. B., 1889, A note on copulation among Odonata, in: 



Entomol. News, Vol. 10, No. 2, Febr., p. 42 f. 

 — , 1901, On the manner of oviposition and on the nymph of Tachopteryx 



thoreyi (Order Odonata), ibid.. Vol. 12, No. 1, p. 1 — 3, tab. 1. 

 — , 1906, Copulation of Odonata. ibid.. Vol. 17, p. 143—148. — Note 



by Philip P. Calveet, p. 148—150, 1 Taf. 

 — , 1908, A new Dragonfly belonging to the Cordulinae, and a revision 



of the Classification of the Subfamily, ibid.. Vol. 19, p. 428 — 434, 



1 Taf, 3 Figg. 



13* 



