392 



GEOLOGICAL SURVEY OF THE TERKITOKIES. 



CURCULIONEDwaS. 



Opliryastes latirosfcris, Lee K. 



ligatus, Lee K. 



sulcirostris, Sch K. 



yittatus, Sell K. 



tuberosus, Lee I. 



Epicaerus imbricatus, Say K. 



Platyomus aurieeps, Sch K. 



Tanymeeus caneseens, Sch K. 



conferteus, Seh K. 



Cleonus pulvereus, Lee K. 



trivittatus, Say K. 



annularis, Lee K. 



Lepyrus geminatus, Leo K. 



Theeesternus humeralis, Say K. 



rectus, Lee K. 



rudis, Lee K. 



erosus, Lee K. 



morbillosus, Lee K. 



Piazorhinus seutellaris, Seh K. 



Rhysematus lineaticollis, Say K. 



Conotrachelus posticatus, Sch K. 



Sphenophorus pulehellus, Sch K. 



cultirostris, Germ K. 



compressirostris, Say K. 



13-puuetatus, Say U. 



Cossonus subareatus, Seh 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. Uhler. 



Ill order to give a more complete representation of the hemipterous 

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

 been introduced which 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 Cicadce. The former genus varies in the color 

 of the antennae, aud 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 

 j)revail in the species belonging to the mountains of jSTevada; while in 

 Colorado and Idaho they present the richest and brightest colors. 



HEMIPTEEA. 



HETEROPTERA. 



Family Gorimel^nid^. 



Corimelcena, White. 



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

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



