36 Journal New York Entomological Society. [Voi. xvin. 



Walker's description and Distant's figure of this species. After more 

 careful comparison with Distant's figure in the Biol. Cent. Am., I am 

 convinced that the differences are mainly those of color, although the 

 three lobes of the head are not of equal length as described by Walker 

 for this species. Furthermore, there is no indication of an abbre- 

 viated pale ochraceous band on the front of the thorax as described 

 by Walker nor a transverse sanguineous band posteriorly as depicted 

 by Distant. Apical part of callosed ridge of scutellum and apex 

 of scutellum itself and entire narrow lateral margin of connexivum 

 ochraceous. Otherwise it agrees with Walker's description. 



These four species may be differentiated in the following synoptic 

 table. 



Chlorocoris. 



Ventral groove of abdomen more or less evident. 



Head long triangular, with lateral lobes more acute. 



Humeral angles drawn out into very acute spines ; rostrum reaching 



the base of the third abdominal segment atrispinus Stal. 



Head shorter, subconical, with apices of lateral lobes more or less evidently 

 rounded ; lateral margins of pronotum straight, with the humeral 

 angle a right angle. 

 A distinct, median, slightly calloused, longitudinal, pale line running 

 through entire length of pronotum and scutellum ; lateral margins 

 of pronotum serrated almost throughout ; ventral groove of abdomen 

 shallow, faintly outlined to base of sixth abdominal segment. 



hebetatus Dist. 



Apical one half of scutellum with a prominently elevated, pale, smooth 



ridge ; lateral margins of pronotum distinctly serrated only about 



half way ; ventral groove of abdomen much deeper and more 



evident to base of sixth abdominal segment riifopictns Walk. 



Ventral groove of abdomen entirely absent. Head short and conical. Humeri 

 spinose snbnigosus Stal. 



Podisus marginiventris Stal. 



This is not new to the United States, as Dr. Uhler from speci- 

 mens collected in Colorado redescribed it under the name gilleftei as 

 pointed out by Mr. Van Duzee, who has himself taken it near Ft. 

 Collins, Colorado. It is so rare that I cannot refrain from mention- 

 ing that two typical specimens were taken in the Huachuca Mts., 

 Arizona. 



Archimerus squalus H. Schf. 



I took over fifty specimens of what I take to be this species in 

 the Huachuca Mts., Arizona. It is rather broad, with the scutellum 



