408 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



2. C. lateralis. 



Coreus lateralis Say, Journ. Acad. Phila., iv, 320, No. 4. 



Corizus lateralis Signoretj Aun. Soc. Eat. France, s6r. 3e, vii, 97, No. 36. 



Swept from weeds on the low hills near Colorado Springs August 18. 



3. C. nigristernum, 



Corizus nigristernum Signoret, Anu. Soc. Ent. France, ser. 3e, vii, 100, No. 41. — 

 Stal, Enumeratio Hemipt., i, 225, No. 20. 



One specimen obtained by Dr. Packard from near Golden July 3. 



Leptocoris Hahn. 

 L. trivittatus. 



Lygwiis trivittatus Say, Journ. Acad. Phila., iv, 322, No. 2. 

 Lexitocoris trivittatus Stal, Enum. Hemipt., i, 226. • 



Although very common in Arizona and California, I did not find many 

 specimens in Colorado. It was not until August 11, at Caiion City, that 

 I met with it, and then only at the roots of Cacti and Yuccas. Dr. 

 Packard found it in the American Fork Caiion, Utah, on July 22. One 

 specimen from Caiion City lacks the discoidal red vitta of the corium. 



Family LYGiEID^. 



Lyg.eus Fab, 

 L. reelivatus. 



Lygwus reclivatus Say, Jonrn. Acad. Phila., iv, 321, No. 1. 

 Lygceas (G-raptolomus) reclivatus Stal, Euum. Hemipt., iii, 107. 



This species, although dwelling upon the Asclejnus, is found scattered 

 over the i^lains in many places and in a less degree upon the high peaks 

 of the mountains in Colorado. I met with it almost everywhere, from 

 Denver to Caiion City, August 6 to 18. Frequently after the rain-storms 

 it "would be found hidden beneath chips and rubbish on the ground, in 

 the caSons and on the mountain-sides, and sometimes it was stowed away 

 with various other insects among the roots of Yuccas, near Colorado 

 Springs and Mauitou. One specimen was swept from weeds growing- 

 close to a bunch of Asclepius in the mouth of the Arkansas Canon. 



Dr. Packard collected it near Boulder, June 27 ; on Arapahoe Peak, 

 11,000-12,000 feet above the sea, July 1; at Manitou, July 15; on 

 summit of Pike's Peak, 13,000 feet, July 14; Garden of the Gods, July 

 13 ; and on Gray's Peak, about 14,000 feet altitude, July 7. 



Melanocortphus Stal. 

 M. faceius. 



Lygceus faceius Say, Heteropt. New Harmony, 13, No. 2. 

 Melanocoryphus facetus Stal, Enum. Hemipt., iv, 113, No. 9. 



A few specimens were swept by myself from Yuccas near Denver ; but 

 they were most common near Colorado Springs August 13-17, and were 

 generally in shelter beneath dried dung, chips, stones, or about the roots 

 of Yuccas. Sometimes, after a rain, or snow-storm, accompanied by high 



