LECONTE ON ROCKY MOUNTAIN COLEOPTERA. 



471 



List of Species Peculiar to the Mountain Region — Continued. 



Typocerus balteatus (8,000). 

 Leptura propinqua (9-10,000). 

 Chrysomela montivagans (11-13,000). 

 Helops difficilis (6-7,000.) 

 Trichalophus planirostris (8-10,000). 

 Magdalis alutacea (10-11,000). 



Chrysobothris carinipennis (9,500). 

 Corymbites planulus (6,000). 

 Podabrus lateralis (9-13,000). 



brevipennis (13,000). 

 CoUops birtellus (11-1.3,000). 

 Melyris atra (6,000). 

 Neoclytus ascendens (9-10,000). 



Bemhidium Scudderi does not properly belong to this group of distri- 

 bution ; but as it is not known except from the single specimen collected 

 by Mr. Bowditch, I aui disposed to believe that it will be found at a 

 higher elevation. 



It will be very interesting, when more complete collections have been 

 made on the higher mountain slopes, to group the species according to 

 the elevation by which they are limited ; and to compare the gradual 

 dying out of the species of lower levels with the survival of hyperborean 

 forms, and any remnants of the preglacial fauna which may have re- 

 treated during the ice-reign and resumed their former habitat with the 

 return of milder influences. But the material upon which to base this 

 investigation is still wanting, and I shall be more than satisfied with the 

 present sketch if I succeed in inviting attention to this important branch 

 of research, thus far neglected in America. 



APPENDIX I. 



LIST OF COLEOPTERA COLLECTED AT ATLANTA, IDAHO, (7,800'), BY Mr 



L. ALLGEWAHR. 



Cicindela longilabris. 



race montana. 



vulgaris. 



12-guttata. 



repanda. 



birticoUis. 

 Trachypachys inermis. 

 Calosoma luxatum. 



Zimmermanni. 

 Carabus limbatus. 

 taedatus. 

 Lebia gattulata. 

 Platynus jejunus, n. sp. 



obsoletus. 

 Pterosticbus protractus. 

 Amara obesa. 

 gibba. 

 Anisodactylus (Dicbirus) piceus. 

 Harpalus basilaris. 

 Bembidium lucidum. 

 mixtum. 

 iridescens. 

 Tacbys nanus. 



Dytiscus marginicoUis. 

 Hydropbilus triangularis. 

 Creophilus villosus. 

 Necropborus Hecate. ^ 

 Silpba lapponica. 

 Catops californicus. 

 Dermestes marmoratus. 



signatus. 

 Orpbilus glabratus. 

 Anthrenus scropbularise. 

 Cucujus puniceus. 

 Dendropbagus glaber. 

 Trogosita virescens. 

 Tenebrioides sinuatus. 

 Carpophilus discoideua. 

 Nitidula bipustulata. 



ziczac. 

 Pityopbagus vittatus. 

 Pbalacrus penicellatus. 

 Hippodamia glacialis. 

 Adalia bipuuctata. 

 Mycetopbagus punctatua. 

 Hiater arcuaitua. 



