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Cerambycidae: Lepturinae) The Lepturine Longhorn Beetles (Cerambycidae: Lepturinae) (The large beetle on the bottom right does not occur in the Pacific Northwest.) of the Pacific Northwest and Other Stories Phil Schapker, M.S. Web version 1.1 April, 2017 Forward to Web Version 1.1 - May, 2017: The current work is a continuation of a chapter from my MS thesis at Oregon State University, completed in Sept. of 2014. Much of this version is copied directly from that document with several additions and corrections to the text, and a number of new photographs. The intitial goal of my thesis was to create a field guide to the PNW lepturines that was useful both to amateur enthusiasts and to scientists in need of a more detailed technical resource. Unfortunately, the work was forshortened due to time constraints for finishing at OSU, and my ultimate pursuit remains a work in progress. After a brief hiatus from active research, I’ve taken back up the effort. The key to genera is largely based on Linsley & Chemsak’s two-part monograph published in 1972 and 1976. It is currently undergoing testing with the intention to incorporate simpler language, a glossary, and photographic aids. I would greatly appreciate any comments, ideas, corrections, or additions. Feel free to email [email protected]. Acknowledgements: Special thanks to Brady Richards for his meticulous help in proofreading the present draft and getting it up on BugGuide. Also to my former adviser, Chris Marshall, for his continued advice and mentorship, and for allowing me to use the resources of the Oregon State Arthropod collection to conduct my research and photograph specimens. 1 | S c h a p k e r – PNW Lepturines v 1 . 1 Table of Contents Introduction ................................................................................................ 7 The lepturines ........................................................................................ 7 Global distribution ............................................................................... 10 The Pacific Northwestern lepturine fauna – history and present state of knowledge ........................................................................................ 11 The organization of genera in the review ............................................ 13 A note on tribes ................................................................................... 14 The use of specimens in the review .................................................... 14 Diagnosis of the subfamily Lepturinae ...................................................... 16 Key to the genera of PNW lepturines ........................................................ 17 Review of genera ....................................................................................... 22 Tribe Lepturini .......................................................................................... 22 Xestoleptura .............................................................................................. 23 X. crassipes (fig. 3b) ............................................................................. 25 X. tibialis (fig. 3c) ................................................................................. 26 X. crassicornis (fig. 3d) ......................................................................... 26 X. behrensii (fig. 3e) ............................................................................. 28 Judolia ....................................................................................................... 29 J. gaurotoides gaurotoides (fig. 4a) ..................................................... 30 J. instabilis (fig. 4b) .............................................................................. 31 J. montivigans montivigans (fig. 4c) .................................................... 31 J. scapularis .......................................................................................... 33 J. impura .............................................................................................. 33 Typocerus .................................................................................................. 34 T. serraticornis (fig. 5) .......................................................................... 34 Leptura ...................................................................................................... 36 L. propinqua (fig. 6b) ........................................................................... 38 L. anthracina (fig. 6b) ........................................................................... 38 L. kerniana (fig. 6c) .............................................................................. 38 L. plagifera (fig. 6c) .............................................................................. 38 L. obliterata obliterata – two common elytral patterns (fig. 6f) ......... 39 2 | S c h a p k e r – PNW Lepturines v 1 . 1 Dorcasina ................................................................................................... 40 D. matthewsii (fig. 7) ........................................................................... 41 Lepturobosca ............................................................................................. 42 L. chrysocoma (fig. 8) ........................................................................... 42 Strophiona ................................................................................................. 44 Stenostrophiona ........................................................................................ 46 S. tribalteata serpentina (fig. 9a) ......................................................... 46 S. tribalteata sierrae (fig. 9a) ............................................................... 46 S. amabilis (fig. 9b) .............................................................................. 47 Grammoptera ............................................................................................ 48 G. molybdica ........................................................................................ 49 G. rhodopus ......................................................................................... 49 G. subargentata (fig. 10) ...................................................................... 50 Neobellamira ............................................................................................. 50 N. delicata delicata (fig. 11) ................................................................. 51 Trachysida ................................................................................................. 52 T. aspera aspera .................................................................................. 52 Lepturopsis ................................................................................................ 53 L. dolorosa (fig. 12) .............................................................................. 54 Pygoleptura ............................................................................................... 55 P. nigrella nigrella ................................................................................ 57 P. nigrella oregonensis ........................................................................ 57 P. brevicornis (fig. 13a) ........................................................................ 58 P. brevicornis (fig. 13b) ........................................................................ 58 P. carbonata (figs. 13c-d) ..................................................................... 59 Stictoleptura .............................................................................................. 60 S. canadensis cribripennis (fig. 14) ...................................................... 60 Neoalostera ............................................................................................... 62 N. rubida (fig. 15) ................................................................................. 62 3 | S c h a p k e r – PNW Lepturines v 1 . 1 Anastrangalia ............................................................................................ 63 A. laetifica – male and female (fig. 16a) .............................................. 63 A. sanguinea – male and female (fig. 16b) .......................................... 64 Brachyleptura ............................................................................................ 66 B. dehiscens (fig. 17a) .......................................................................... 67 B. vexatrix (fig. 17b) ............................................................................. 68 Ortholeptura ............................................................................................. 69 O. obscura (fig. 18) .............................................................................. 70 O. valida (fig. 18) .................................................................................. 70 Tribe Rhagiini ............................................................................................ 71 Rhagium .................................................................................................... 71 R. inquisitor (fig. 19) ............................................................................ 71 Pseudogaurotina ....................................................................................... 74 P. cressoni cressoni (fig. 20a) .............................................................. 76 P. cressoni lecontei (fig. 20b) .............................................................. 77 Brachysomida ...........................................................................................
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