178 



19 (20) Wings wanting, or shorter than the tegmina. 



10. Labia Burgessi. 



20 (19) Wings protruding beyond the tips of the tegmina. 



21 (22) Forceps of female scarcely flattened beneath, with 



rounded lateral edges 11. Labia minor. 



22 (21) Forceps of female flattened beneath, with sharp lateral 



edges. 



23 (24) Exposed part of wings with a distinct yellow spot. 



12. Labia guttata. 



24 (23) Exposed part of wings unicolorous. 



13. Labia melancholic a. 



This table does not include Forficula Perclieroni Guer., described by 

 me fourteen years ago (as Spongophora bipunctata) from a broken speci- 

 men in the Harris collection, supposed to have come from Massachusetts. 

 If it did, it was probably introduced accidentally, as it has not since been 

 captured in the United States. Nos. 1, 2, 5 and 11 are also found in the 

 Old World. 



A general catalogue of Forficulariae, by the writer, will be found in Vol. 

 xviii of the Proceedings of the Boston Society of Natural History, where 

 will be found references to the best descriptions of the species. Original 

 descriptions of most of the N. American species will be found in the Or- 

 thopteres of Serville (Suites a Buffon), the Handbuch der Entomologie 

 (Vol. 2) of Burmeister, Dohrn's Dermapteren von Mexico (Stett. Entom. 

 Zeit., Jahrg. 23), the Monographie der Dermapteren of the same author 

 (ibid., Jahrg. 24-26), and in my Century of Orthoptera and other papers 

 (Proc. Bost. Soc. Nat. Hist., Vol. 18). Other descriptions will be found 

 in Palisot de Beauvois (Ins. Afr. et Amer.), Guerin (Sagra's Cuba) and the 

 general writings of Linne and Fabricius. 



The latest views on the classification of Forficulariae will be found in 

 Dohrn's Monograph, above cited. The anatomy of the group has been 

 studied by Posselt (Inaug. Dissert., 1800), Dufour (Ann. Sc. Nat., 1828; 

 Rech. anat. et phys. sur les Orth., etc., 1841), Lacaze-Duthiers (Ann. Sc. 

 Nat., 1852), Meinert (Naturh. Tidsskr. [3] 5), and in a more general way 

 by several other authors, Serres, Newport, etc. On the structure of the 

 wings and their manner of folding, see a paper shortly to appear in the 

 American Naturalist. Fossil species have been described by Herr, Massa- 

 longo, Weyenbergh and Scudder. Samuel H. Scudder. 



Remarkable Tenacity of Life. Yesterday afternoon, between two 

 and three p.m., I collected a number of Coleoptera, among which were Lo- 

 phoglossus strenuus, Helops micans, Helops aereus, several Pterostichi and 

 Platyni. I arrived at home a little after five p.m., and, after the perusal of 

 some letters, went to pick out the specimens. All except L. strenuus and 

 H. micans were pasted on cards. About fifteen minutes afterwards the six 



