and his Entomological Speculations. 119 



new Classification of Animals, as the very title of his three first Arti- 

 cles on the subject proves, on the single character of " Cephalization ;" 

 thus showing that it was in reality, not a Natural, but an Artificial 

 System.* 



I might bring forward other cases of misquotation on the part of 

 Prof. Dana, equally conspicuous and equally indefensible with the 

 above. But I will stop with the third, as the Professor delights in the 

 frequent recurrence of the mysterious number three, (p. 174.) I may 

 as well, however, take this opportunity to rectify a few passages in that 

 Paper of mine which Prof. Dana has critscised. 



1st. The genus of Spiders, described in the note on p. 235 and pro- 

 visionally named Myrmecarachna, is, as Baron Osten Sacken has 

 kindly informed me, identical with Syncmosyna, Ilentz. 



2n</. On p. 249 I failed to call to mind any larva that spins from 

 the anus like a spider. That of Chrysopa does so, as we learn from 

 Fitch, (X. Y. Rep. I. p. 79.) and Shinier, (Proc. etc., IV. p. 210.) 



3rd. On p. 249, line 8 from bottom, for " Brachygaster" read 

 •• Microgaster." I quoted this example from memory, and I am not 

 quite sure that I did not mistake the anus for the head, the observa- 

 tion having been made in the field aud with the naked eye. 



Rock Island, Illinois, May 14, 186u. 



APPENDIX. (See above, page 118.) 



Many more such " erroneous statements" might be added from the 

 Paper now under view, as, for instance the assertion that " the anterior 

 wings in the Hemipters, as in the Coleopters and Orthopters, are not 

 flying wings." (p. 172.) If the Professor will only open his eyes 

 the next time he walks out into the fields, he will see that almost all 

 our common Grasshoppers use their front wings in flying as well as 

 their hind ones. I have often watched the male of our common 

 (Edipoda Carolina. Linn., hovering in the air, like the European kes- 

 trel or our sparrowhawk, and striking rapidly with all four wings at 

 once. If it were not that Prof. Dana has expressed his contempt for 

 " ordinary systematists,'' (p. 167) I might refer him also to Westwood, 

 who says, speaking generally of the Orthoptera. " During flight both 



* '-The Classification of Animals based on the principle of Cephalization : 

 by Jas. D. Dana." Amer. Journ. Sc. and Arts. No. I, Nov. 1803. No. II, Jan- 

 1864. No. Ill, March 1S04. It is a significant fact, that in No. IV of this 

 series, (the Paper we now have under consideration.) the title is changed to 

 " On Cephalization : No. IV. Explanations drawn out by the statements of an 

 objector: by Jas. D. Dana." 



