2 Cincitmati Society of Natural History 



insect. They vary considerably in size and in the degree of 

 development of sexual characters. To study them to advantage 

 they should be clean and have antennae and foretibiae drawn 

 out and some specimens mounted ventral side up. Some of 

 them are very tenacious of life and require strong killing sub- 

 stances. The literature on the family is not very accessible. 

 Mellie's papers are in the Annals of the Entomological Society 

 of France, vol. vi, p. 271, 1848. Casey's paper on the North 

 American species is in the journal of the New York Entomo- 

 logical Society, vol. vi. No. 2, p. 76, June 1898. Dr. E. J. 

 Kraus has a paper, with plates, on the bicolored species, in 

 Proc. Ent. Soc, Washington, D. C, vol. x, Nos. 1 and 2, p. 74. 

 Prof. Blatchley gives descriptions of Indiana species (three 

 new ones described) in Beetles or Coleoptera of Indiana. 

 Geological and Natural History Survey. Le Conte and Horn in 

 the classification, place the Cioidae in both the clavicorn and 

 serricorn series, as they exhibit affinities in both directions. 

 Casey considers them serricorn. W. F. Kirby in his textbook 

 (1892) places them in his section Teredilia. They are widely 

 distributed in North America, occurring from the Atlantic to 

 the Pacific and from the gulf to Canada. At Cincinnati, Ohio, 

 I have taken sixteen species. In Maj. Casey's paper, referred 

 to above, he gives a table of Cioinae, p. 77, which I have modi- 

 fied as suggested by a much larger and more complete material, 

 and added genera and species discovered since its publication. 

 I am indebted to the following who have kindly loaned and 

 presented me with specimens: II. P. Loding, Mobile, Ala.; 

 Prof. W. S. Blatchley, Indianapolis, Ind.; C. A. Frost, Framing- 

 ham, Mass.; Chas. Leng and Chas. Schaeffer, of New York; 

 W. E. Snyder, Beaver Dam, Wis.; H. W. Wenzel, Dr. Castle, 

 and Phil. H. Laurent, Philadelphia, Pa.; Geo. F. Moznette, 

 Corvallis, Ore.; Dr. F. E. Blaisdell, Prof. H. C. Fall, Dr. A. 

 Fenyes, and G. R. Pilate, of California; R. T. Kellogg, of New 

 Mexico; W. Knaus, of Kansas; Thos. L. Casey, Washington, 

 D. C; Miss A. F. Braun, Cincinnati, O., and others. 



