Leptura (Leptura) Linnaeus, 1758

Leptura Linnaeus, 1758: 397

The Pacific Northwestern species can be distinguished as follows: 

1. Hairs on pronotum subdepressed and
           pointed backwards.............................................................2. 
     Hairs on pronotum sparse and erect........................................3. 
2. Elytra black, or black with anterior (basal)
            portion reddish................................................................anthracina
     Elytra yellowish with black stripes and blotches,
            sometimes reduced to two medio-lateral dots
            and an apical band (common species).............................obliterata 
3. Abdomen with golden hairs not obscuring surface.       
            Elytra yellow-reddish or red with a large
            discal black spot...............................................................4.
     Abdomen densely clothed with golden
            pubescence. Elytra yellow always with
            two medio-lateral spots and an apical band. ...................propinqua
4. Elytra red with large discal black spot extending
            over most of area. Pronotum with short,
            erect bristles.....................................................................plagifera
     Elytra with only very faint splotches on a
            mostly reddish-yellow or yellow-brown base.
            Pronotum with hairs long and wavy (rare species)...........kerniana

Leptura (Leptura) anthracina LeConte, 1875: 174 (above image)
    subcostata Fall, 1907: 249
 

Leptura (Leptura) kerniana Fall, 1907: 249 (above image)
 

Leptura (Leptura) obliterata obliterata (Haldeman, 1847:62)  (above image)
     vitiosa LeConte, 1854:18
     perductor Walker in Lord, 1866:333
     idahoensis Casey, 1913:259

A closely related species in Japan has been treated as a subspecies by some authors. See species page for details. 
 

Leptura (Leptura) plagifera LeConte, 1873:224 (above image)
 

Leptura (Leptura) propinqua Bland, 1865:384  (above image)
     regularis Casey, 1913:259
     miniscula Casey, 1913:260

References 

1. Casey, T. L. 1913. Further studies amongst the American Longicornia. Memoirs on the Coleoptera, 4:193-388. <Link to Biodiversity Heritage Library> <PDF>
2. Bland, J. H. B. 1865. Descriptions of several new species of North American Coleoptera. Proceedings of the Entomological Society of Philadelphia, 4:381-384. <Link to BHL> <PDF>
3. Fall, H. C. 1907. Descriptions of new species. Transactions of the American Entomological Society, 33: 218-272. <Link to BHL>
4. Haldeman, S. S. 1847. Material towards a history of the Coleoptera Longicornia of the United States. Transactions of the American Philosophical Society, 10:27-66. <Link to BHL>
5. LeConte, J. L. 1854. Descriptions of some new Coleoptera from Oregon, collected by Dr. J. G. Cooper on the North Pacific R. R. expedition under Gov. J. J. Stevens. Proceedings of the Academy of Natural Sciences of Philadelphia, 7:16-20. <Link to BHL> <PDF>
6. LeConte, J. L. 1873. New species of North American Coleoptera. Prepared for the Smithsonian Institution. Part II. Smithsonian Miscellaneous Collections.  11(264):169-240. <Link to BHL> <PDF>
7. Walker, F. 1866. Appendix, in J. K. Lord, The Naturalist in Vancouver Island and British Columbia. London, Richard Bentley, 2: x + 375 pp., 4 pls. (Walker's Appendix, p. 289-375).