134 HORTENSE BUTLER. 



BIBLIOGRAPHY. 



1883, Brulle, p. — Observations sur la bouche des Libellulines. 



Ann. Soc. Ent> France, vol. ii, p. 343-350, pi. 13. 

 1842, Rambur, p. — Historie Naturelle des lusectes. Neuropteres, 



Paris, pi. 1, figs. 1 and 3. 

 1869, Brandt, A. — Beitraege zur Eutwieklungsgeschichte der Li 



belluliden und Heinipteren, mit besondere Berucksichtigung 



der Embryonalhiille derselben. Memoires L'Academie Im- 



periale des Sciences de St. Petersbourg. 7 Series, Tome 13, 



No. 1. 

 1873, Gekstaecker, A. — Zur Morphologic der Orthoptera amphi 



biotica. Festschrift hundert jahr Best. Gesell. Naturfor. 



Freunde. Berlin, pp. 39-59, pi. 1. 

 1883, Packard, A. S. — The Systematic Position of the Orthoptera 



in Relation to other Orders of Insects. Third Report of the 



U. S. Ent. Comra. PI. 37. 

 1893, Calvert, P. P. — Catalogue of the Odonata of Philadelphia 



and Vicinity. Tr. Am. Ent. Soc, vol xx, pp. 155-158, pi. 



2, figs. 7-10. 

 1896, Heymons, R. — Grundziige der Entwickelung und des Kor- 



perbaues von Odonaten und Ephemeriden. Anh. Abh. Kgl. 



Preuss. Akad. der Wiss. zu Berlin. Pp. 17-26, pi. 2, figs. 



17, 19, 21, 24. 



1901, Needham, J. G. — Aquatic Insects in the Adirondacks. 

 Bulletin 47, N. Y. State Museum. 



1902, Comstock, J. H.— Skeleton of the Head of Insects. Ameri- 



can Naturalist. Vol. 36, No. 421. 



