AMERICAN HEMIPTERA. 9 



^Coriiiielieiia iiiarginella Dallas. 



This fjpecies I have been unable to identify with any form I have 

 yet seen from jSTorth America. Distant figures the type at plate 

 30, fig. 1, of the Biologia. Judging from this figure and from the 

 description by Dallas, it must be very close to pulicaria. The type 

 was from Hudson's Bay, and Distant records its occurrence in 

 Mexico. 



Coriiiieliena pulicaria Germar. 



This veiy common and widely distributed insect needs no ex- 

 tended notice. It is the smallest species yet recognized from within 

 our limits, but it shows some variation in size as well as in the width 

 of the pale margin of the elytra. Sometimes the color on the corium 

 is deepened almost to orange. Redescribed as Galgupha fiavo 

 marginata by Cyrus Thomas in Trans. 111. State Ag. Soc, v, p. 

 455, 1865. 



Corinielteiia exteiii^a Uhler. 



This species, as I have located it, seems to be quite widely dis- 

 tributed in the Rocky Mountains. It is closely allied to pulicaria, 

 but is a little larger, much more elongated in form, the head is 

 longer and more triangular, and the antennae are paler in color, 

 with the apical joints shorter and more slender. It has an obscure 

 pale line on the edge of the sixth ventral segment, but none on the 

 genital segment as in pulicaria. Most of my Colorado specimens 

 are smaller than the measurements given by Dr. Uhler and have 

 the elytra orange in place of pale yellow. The narrow black stripe 

 mentioned by Uhler follows the contour of the scutellar margin. 



I swept this insect in great numbers from a low labiate plant on 

 the high prairies close up to the foot of Green Mountain, at Boulder, 

 Colo., in July, 1908. I have al.^o taken it in the same State at 

 Pueblo and Fort Collins. Pi'of. Wickham has sent me specimens 

 taken on Inyo Mountains, Cal., at an altitude of about 8000 feet, 

 and Rev. G. W. Taylor has taken it in Vancouver Island in May. 

 Dr. Uhler records it from Dakota, Oregon, California, Utah, Ari- 

 zona and Mexico. Mr. C. H. T. Townsend reports it on wild to- 

 bacco in Arizona (Psyche, vi, 547, 1893). I have never seen dark- 

 green specimens, such a.s he describes. 



Coriineiiena renorniata Uhler. Hemiptera of Colo ratio, y. 11, 1895. 

 Of this very distinct species I have three specimens in my collet- 



TRANS. AM. ENT. SOC. XXX. (2) JANUARY. 1 S»()4 



