No. 34. 



HEMIPTERA OF CONNECTICUT: LYGAEIDAE. 



709 



before the posterior coxae are not often employed. These 

 characters are shown in figures 166 and 167. 



In his subdivision of the Rhyparochrominae into tribes, Stal 

 placed great importance upon the position of the two glandular 



Antcnniferous 

 tubercle 



Fig. 166. Ligyrocoris diffusus Uhler, — illustrating Lygaeid structures, 

 dorsal view greatly enlarged. Drawing by Mr. H. G. Barber. 



opaque spots on the sides of the fourth ventral abdominal segment. 

 Dr. Bergroth has called into question the value of these as a tribal 

 character. This matter was discussed by me (Psyche, Vol. xxv, 

 pp. 71-72, 1918), and need not be repeated here. Of secondary 



