392 



GEOLOGICAL SURVEY OF THE TERRITORIES. 



CURCULIONIDJE. 



Opiiryastes latirostris, Lee K. 



ligatus, Lee K. 



sulcirostris, Sch , K. 



vittatiis, Sch K. 



tuberosus, Lee I. 



Epicaerus imbricatus, Say K. 



Platyomus auriceps, Sch K. 



Tanymecus canescens, Sch K. 



couferteus, Sch K. 



Cleonus pulvereus, Lee K. 



trivittatus, Say K. 



ano^laris, Lee K. 



Lepyms geminatus, Lee K. 



Thecesternus humeralis, Say K. 



rectus, Lee K. 



rudis, Lee K. 



erosus, Lee K. 



mor billows, Lee K. 



Piazorhinus scutellaris, Sch K. 



Rhysematuslineaticollia, Say K. 



Conotrachelus posticatus, Sch K. 



Sphenophorus pulchellus, Sch K. 



cultirostris, Gerui. ...... K. 



compressirostris, Say K. 



13-puuctatus, Say U. 



Cossonus subareatusj Sch K. 



SCOLYTID^. 



Tomicus pini, Harris K. 



caligraphuS; Germ K. 



Dendroctonus terebrans, 01 K 



NOTICES OF THE HEMIPTERA OF THE WESTERN TERRITORIES 

 OF THE UNITED STATES, CHIEFLY FROM THE SURVEYS 

 OF DR. F. V. HAYDEN. 



By p. R. Uiiler. 



In order to give a more complete representation of the hemipterous 

 faunil of the regions explored by Dr. Hayden, certain species have 

 been introduced vrhich were collected by other persons at different 

 times. 



To do full justice to the vast territory embraced in the surveys would 

 demand close attention to collecting during several years. As this has 

 not yet been possible, we can only include the scanty materials which 

 have been brought together by the industry of a very few individuals. 



A country presenting such diversity of surface, and climate so varied, 

 must offer great variations in the species which belong to it; and, in 

 fact, such proves to be the case ; as, for instance, may be seen in Che- 

 linidea. Lygus, and some Cicadw. The former genus varies in the color 

 of the antennie, and still more in their width; in some specimens the 

 joints of these organs are flattened into almost lamellate expansions. 

 A Lygus, which, in many respects, resembles the European L.pratensis, 

 Fab., varies in form, size, and pattern of marking. Melanism seems to 

 prevail in the species belonging to the mountains of iS^evada; while in 

 Colorado and Idaho they present the richest and brightest colors. 



HEMIPTERA. 

 HETEROPTERA. 



Family Cori3IELJENid^. 



Corimelcenaj White. 



1. C. nitiduloides, Wolff", (Icones Cim., p. 98, Tab. 10, fig. 92.)— The 

 western specimens generally differ from the eastern in lacking the depres- 



