189I.] NEW-YORK MICROSCOPICAL SOCIETY. 17 



Helichus LiTHOi'HiLUS Germ. (?) 

 1841. Larva. Erichson. Wiegem. Archiv. 107. pt. i. 



1853. Larva (fig. only). Kellicott. Can. Ent. xv. 192. 



Helichus fastigiatus Say. 

 1869. Larva (very brief). Leconte. Harr. Corr. 227. 



Stenelmis crenatus Say. 

 1869. Larva (very brief). Leconte. Harr. Corr. 227. 

 DASCILLYD^. 

 Ptilodactyla serricollis Say. 

 1862. Larva (fig.)- O. Sacken. Proc. Ent. Soc. Phil. i. 109. pi, i. fig. 3 (as 

 P. elaterind). 



Prionocyphok discoideus Say. 

 1862. Larva, pupa. O. Sacken. Proc. Ent. Soc. Ont. i. 115. 

 1869. Larva, pupa (brief). Packard (quotes O. Sacken). Guide. 464. 



Cyphon variabilis Thunb. 



1866. Larva, pupa (figs.). Frauenfeld. Verh. z. b. Geo. Wien. xvi. 969. 



1867. Larva, pupa. Tournier (quotes Frauenfeld). Assoc, zool. du Leman. 

 1874. Larva (brief). Rolph. Wiegem. Archiv. 40. pt. i. 25. 



RHIPICERIDzE. 

 Zenoa picea Beauv. 

 1862. Larva (fig.). O. Sacken. Proc. Ent. Soc. Phil. i. 107. pi. i. fig. 2. 



ELATERID^. 

 1877. Larvae. Ferris. Larv. des Col. 166-169. 

 Fornax orchesides Newm (?) -xr^ 



1861. Larva (very brief), Horn. Proc. Ent. Soc. Phil. i. 43. 



1862. Larva, pupa (fig.). O. Sacken. Proc. Ent. Soc. Phil. i. 112. 



Fornax badius Melsh. 

 1862. Larva, pupa (figs). O. Sacken.. Proc. Ent. Soc. Phil. i. 113, 114, 



Alaus oculatus Linn. 

 1841. Larva (brief). Harris. Inj. Ins. Mass. 48. 



1854. Larva. Emmons. Ins. N. Y. 87. 



1855. Larva (fig.). Chapuis et Candeze. Mem. Soc. Sc. Liege, viii. 482. pi. 



V. fig. 3' 



1861. Larva (fig.). Rathvon. Rep. U. S. Dept. Agri. 58. 



1865. Larva. Thomas. Trans. 111. Agri. Soc. v. 417. 



1868. Larva (fig. only). Glover. Rep. U. S. Dept. Agri. 93. 



1869. Larva (fig. only). Harris. Harr. Corr. 139. pi. iv. 

 1876. Larva (brief) . Thomas, ist Rep. Inj. Ins. 111. 116. 

 1879. Larva. Harrington. Rep. Ent. Soc. Ont. 82. 



