Dec, 1922.] Wolcott: The Male of Cymatodera Horxi. 191 



Plate XXVI. 



Fig. 13. Stony ground in the upper end of the woods. 



Fig. 14- Log on ground in woods showing sporophores of Collybia platy- 

 phylla and other fungi. 



Fig. 15. Fallen trees and branches covered the floor of the woods in 

 many places. 



Fig. 16. Dead birch in woods attacked by Polyporus betulinus. 



Fig. 17. Xest of Formica exsectoides found in some of the open spaces 

 of the thicket. 



Fig. iS. Dead trees in the woods showing sporophores of various fungi. 



THE MALE OF CYMATODERA HORNI 

 (CLERID^: COL.). 



By a. B. Wolcott, 

 Field Mcsevm of X.\tur.\l History, Chicago, III. 



A male specimen of Cymatodcra honii Wolc. has ver\- recently 

 come into my possession. My sincere thanks are due Mr. Chas. 

 Liebeck who. recognizing that this sex was not represented amongst 

 my material, with great generosity presented me with a fine speci- 

 men of that sex. As the male has never been described, and as it 

 was entirely unknown to me in nature. I could not include char- 

 acters enabling its identification in the table of the species of 

 Cymatodcra (Proc. U. S. Nat. Mus., LIX, 1921, pp. 284-288). 1 

 hasten to record the characteristics of this sex, that the necessary 

 additions may be made to the above-mentioned table, thus render- 

 ing it more complete. 



The male of Cpnatodcra horni agrees with the female in having the 

 elytral apices rounded, differing thus from Cymatodera calif omica in 

 which both sexes have the elytral apices sinuate and the sutural an- 

 gle sometimes prolonged. C. horni has the sides of the elytra very 

 nearly truly parallel, more so than in the female of the same species, 

 but the latter sex has the apical third of the elytra more strongly 

 obliquely narrowed to the apex : The sides of the elytra are in the 

 male of C. calif omica distinctly divergent posteriorly. 



Cymatodera horni and Cymatodera califomica are certainly very 

 closely allied species, resembling each other so closely in form. size. 



