Proceedings of 

 the United States 

 National Museum 



SMITHSONIAN INSTITUTION • WASHINGTON, B.C. 



Volume 115 1964 Number 3483 



NOTES ON ARADIDAE IN THE U.S. NATIONAL MUSEUM 



III. SUBFAMILY MEZIRINAE ' 



(HEMIPTERA) 



By Nicholas A. Kormilev 



For the privilege of studying the unidentified flat bugs, family 

 Aradidae, in the collections of the U.S. National Museum, I wish to 

 express my deep appreciation to Dr. J. F. Gates Clarke, Curator of 

 Insects, U.S. National Museum, and to Dr. Carl J. Drake, Research 

 Associate, Smithsonian Institution. The deposition of types of new 

 species is stated beneath the descriptions. 



In the descriptions, 20 units=l mm. for aU species but Placogenis 

 brachyptera (Kormilev), in which 30 units=l mm. The first figure in 

 the ratios represents the length; the second, the width of the measured 

 part. In the measurements of the pronotum, the figures within 

 brackets represent the width of the forelobe; the last figure, the width 

 of the hind lobe across the widest part. The length of the head was 

 measured from the middle of the posterior border to the tip of the juga 

 and the width across the eyes, as a more constant unit, and not across 

 the postocular tubercles or spines, which are variable within the species. 

 The lengths of the pronotmn, scutellum, and abdomen were taken 

 on the median line ; the length of the abdomen was taken from the tip 



1 See N. A. Kormilev, 1958, Notes on Aradidae in the U.S. National Museum I, Proc. 

 U.S. Nat. Mus., vol. 109, no. 3413, pp. 209-222, and N. A. Kormilev, 1960, Notes on 

 Aradidae In the U.S. National Museum II, Journ. New York Ent. Soc, vol. 68, 

 pp. 36-47. 



245 



