Jan., '04] ENTOMOLOGICAL NEWS. 39 



In liis remarks introductory to this bulletin, on p. 203, Prof. Needham 

 states: " My chief contribution to this bulletin is the description of the 

 life histories and habits of the damsel flies (order Odonata, suborder 

 Zygoptera). I have been able to describe the nymphs of all our 10 

 genera and 23 of our 42 known species all these descriptions being new." 

 And on p. 218 he continues, "Of these 23, three are Calopterygidie, five 

 are Lestitue and the remaining 15 are Agrionin^e ; and fortunately the 

 nymphs of all our genera are now known." 



Directions and suggestions for collecting life history material in this sub- 

 order are given on p. 219. Keys to families, subfamilies, genera and spe- 

 cies of images and known nymphs follow. Detailed notes on the scope, 

 range and general ecology of the larger groups are interspersed ; and for 

 each species the more important bibliography, special habits, and a de- 

 scription of the nymph, if known, are given. On page 222, in the key to 

 species of Caloptery.v, aniaia is stated to have the wings uniformly colored. 

 As originally described by Hagen and as verified by the examination of a 

 considerable number of specimens, adult males have the hind wings api- 

 cally brown. On p. 245, a new genus, Chromagrion, is described for 

 Agrion condHiini Hagen, which, since 1876, has generally been written 

 ? Eryf/iroinina condition. The genus is defined both for the imago and 

 nymph, and finds its nearest affinities with Erythronnna and Pyrrhosoma. 

 On p. 251 it is stated, " they ( Enallagmas) do not, so far as I have observed, 

 descend beneath the surface of the water in ovipositing." At Round Lake, 

 Whitley County, Indiana, Enallagnia signatitin in couple has often been 

 seen submerged ; and see McLachlan, Ent. Mo. Mag. (2) Vol. 10, p. 

 207. On p. 253 the name anne.vinn is retained for the species which, as 

 determined by Calvert and Williamson, is identical with cyaihigerum. 

 Agrion posilum Hagen, usually known heretofore as Nehalennia posita, 

 is, with reason, taken from Xehalennia, (not Xchallennia, as in the bul- 

 letin under review) and placed in Ischnnra, though it also shows affinities 

 with Ena/lagina. 



Appendix on Odonata, page 263 : " During the past season there has 

 been opportunity for making some further observations on the Odonata- 

 Anisoptera. * : ~ It is now possible to add descriptions of the nymphs 



of eleven additional species with new data on some of the others" dis- 

 cussed in Bulletin 47, New York State Museum, September, 1901, pp. 

 429-540. On page 264, the past confusion between Gomphus fraternus 

 and G. c.r/er/ms may have resulted from a mistake made by Professor 

 Needham in comparing his specimens with the Illinois State Laboratory 

 specimens, rather than through an error by Hagen, an error hardly pos 

 sible in, the light of the figures drawn by Hagen for the Mno^> aphie des 

 < ioinp/ihies, PI. 7, fig. 4, 1855, and PI. 21, fig. 2, 1858 Gomphus borealis 

 is now regarded by Professor Needham as specifically distinct from (/. 

 descriphts. (,'<>inp/ins dilalaliis is designated as the type of (;<.ni/>hnrns. 

 and the remarkable nymph of this species is described. On p. 275, the 

 habitats of the nymphs of 62 species of Odi mates are given in tabular 



