Vol. XXV] ENTOMOLOGICAL NEWS 347 



In all cases the "rudimentary 4th" antenodal is a small stump pro- 

 jecting from the anterior side of the subcosta toward, but not reach- 

 ing, the costa. 



The relationships of Thaumatoneura have been discussed by 

 McLachlan (1897), Needham (1903), Foerster (1909), and 

 the writer (1902, 1913). 



The larva of Thaumatoneura will be described in the next 

 number of these studies. 



BIBLIOGRAPHY. 

 Calvert, P. P. 1901. Biologia Centrali-Americana, Neuroptera, p. 58, 



Tab. Ill, Figs. 16, 21, 27. (Brief description of T. inopinata S ; 



habitus, venation and appendages figured.) Cf. /. c, p. 354 (1907). 

 Calvert, P. P. 1902. On the Systematic Position of Thaumatoneura 



inopinata, McLachlan (Order Odonata), with some remarks on the 



Classification of the Suborder Zygoptera. Ent. Mo. Mag. (2) XIII, 



pp. 29-32. (Refers Th. to the Agrionine legion Podagrion of de 



Selys.) 

 Calvert, P. P. 1904. Thaumatoneura again. Ent. Nezvs, XV, p.~2i6. 



(Original description of pellucida $ ; additional data on inopinata 



s.) 



Calvert, P. P. 1910. Zoological Researches in Costa Rica. Old 

 Perm Weekly Review of the University of Pennsylvania, Philadel- 

 phia, IX, pp. 165-170. (General account of the habits and habitat of 

 Th., p. 167.) 



Calvert, P. P. 1913. The Fossil Odonate Phenacolestes, with a dis- 

 cussion of the Venation of the legion Podagrion Selys. Proc. Acad. 

 Nat. Sci. Phila., 1913, pp. 225-272, PI. XIV. (Comparison of gen- 

 eric characters of Th., p. 233; relationships of Th., pp. 233-235; 

 defense of its reference to legion Podagrion against views of 

 Foerster and of Needham.) 



Foerster, F. 1909. Beitrage zu den Gattungen und Arten der Libel- 

 len, Jahrb. Nassau. Ver. Naturk. Wiesbaden, LXII, pp. 21^235. 

 (Refers Th. to the Calopteryginae, p. 214.) 



LeuThner, F. 1885. A Monograph of the Odontolabini, a subdivision 

 of the Coleopterous family Lucanidae. Trans. Zool. Soc. London, 

 XI, pp. 385-491, Pis. LXXXIV-XCVII. (Dimorphic males in the 

 same species, pp. 389, 395-406. 



McLachlan, R. 1897. Thaumatoneura inopinata, a new genus and 

 species of Calopteryginae. Ent. Mo. Mag., London, XXXIII, pp. 

 130-131. (Original description; cf. also /. c. (2), XI, p. 189, 1900.) 



Needham, J. G. 1903. A Genealogic Study of Dragonfly Wing Vena- 

 tion. Proc. U. S. Nat. Mus., XXVI, pp. 703-764, 24 Pis. (Refers 



