140 Cincinnati Society of Natural History. 
ECTOPRIA, 
E. nervosa Melsh. 
PRIONOCYPHON. 
P. discoideus Say. 
HELODES. 
H. pulchella Guer. ; H. thoracica Guer. 
H. fuscipennis Guer. 
SCIRTES. 
S. tibialis Guer. S. orbiculatus Fab. 
' CYPHON. 
C. ruficollis Say. C. variabilis Thunb. 
C. obscurus Guer. 
See Horn’s paper, Trans., 1880, V. 8, p. 76. 
RHIPICERID/E. 
ZENOA. 
Z. picea Beauv. 
SANDALUS. 
S. niger Knoch. S. petrophya Knoch. 
For note on life history of Sandalus niger, see paper I published 
in this journal, Vol. XIX, No. 5, p. 172. I do not know of any 
complete paper up to date, on the N. A. members of this family. 
Dr. Horn has a synopsis of Sandalus, Trans. 1881, Vol. 9, p..86. 
ELATERIDAZ. 
This great family is richly represented here. The N. A. species 
are much in need of a revision to include the new species discoy- 
ered since Le Conte’s paper, Trans. Amer. Philosophical Soc., 
1853. N. Series, vol. x, pp. 405-508. The Eucneminac, Cerophy- 
tinae and Perothopinae have been done in an admirable manner 
by Dr. Horn. Trans., January, 1886, pp. 5-58. 
The Elaters are popularly known as “Spring beetles,” “Click 
beetles” and “Snapping bugs.” Their larvae live mostly in decay- 
ing wood and in the ground, on plant roots, and are called “wire 
worms.” The adult beetles are found in a great variety of places, 
on the trunks and foliage of trees, under bark, and early in the 
Spring, under stones, on the ground, etc. Our species are: 
MELASIS, 
M. pectinicornis Welsh. 
From a beech log about four feet long I took 50 specimens, that 
were emerging from round holes they had made. May 27, 1892. 
34 
