406 BULLETIN UNITED STATES GEOLOGICAL SUEVEY. 



Anasa Amyot et Serv. 

 A. tristis, 



Cimex tristis De Geer, M6moires, iii, 340, pi. 34, fig. 20. 

 Coreas ordinatus Say, Journ. Acad. Phila., iv, 318, No. 2. 

 Anasa tristis Stal, Hemipt. Fabr., i, 56, No. 3. 



Taken beneath rubbish on on8 of the farms a few miles west of 

 Denver, Colo., August 18. It "was not common there, and I failed to 

 find specimens in any of the other places which I visited during my stay 

 in Colorado. 



Subfamily ALYDINiE. 



Alydus Fab. 



1. A. eurimis. 



Lygaus eurinus Say, Journ. Acad. Phila., iv, 324, No. 5. 

 Alydus ater Dallas, Brit. Mus. List Hemipt., ii,..478, No. 30, 9 . 



This is not Alydus eurinus Stal (Enum. Hemipt., i, 213, No. 3), but 

 is the most closely related to A. calcaratus Linnseus of Europe. A single 

 specimen was collected by Dr. Packard near Manitou, Colo., July 15. 

 Several specimens obtained near Denver were given to me by Mr. B. H. 

 Smith. 



2. A. pluto. 



Alydus i^luto Ubler, Haydeu's Survey of Montana, 404, No. 2. 



One specimen occurred to me west of Denver, August 9. 



Megalotomus Fieb. 

 M. qiiinquespinosus. . • 



Alydus 5'Sinnosus Say, Journ. Acad. Phila., iv, 323, No. 4. 

 Alydus cruentus H.-Schf., Wanz. Ins., viii, 100, fig. 858. 

 Megalotomus quinquespinosus Stal, Enum. Hemipt., 1, 214, No. 4. 



Collected by Dr. Packard in the American Fork CaQon, Utah, on 

 July 22. 



Subfamily BEEYTIN^. 



Neides Latr. 



1. N. sjjlnosus. 



Berytus spinosus Say, Amer. Entom., i, pi. 14. 

 Neides trispinosus Hope, Catal. of Hemipt., ii, 24. 



Not uncommon in the valley of the Arkansas east of Canon City, 

 Augustll. It occurred in places slightly wooded, where wild grape-vines 

 abounded. 



2. N. muticus. 



Berytus muticus Say, Heteropt. New Harmony, 13. 



JS^eides decurvatus Uhler, Fifth Ann. Kep. U. S. Geol. Surv. for 1871, 1872, p. 402. 



Several specimens were found by me in Clear Creek Canon at the en- 

 trance to Beaver Brook Gulch, August 7. They were flying in the bright 

 sunlight, and might easily have been taken for TlpuUdce. 



