Platyceroides Benesh
Creators: name: Paulsen, M. J.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lucanidae
Platyceroides

description: Key to males of Platyceroides Benesh
1. Flightless. Mesotibiae and metatibiae robust (Fig. 17)................................... Platyceroides keeni (Casey)
- Fully winged. Mesotibiae and metatibiae long and narrow (Fig. 18)............................................ 2
2. Head wider across genae than across eyes, anterior margin of head distinctly emarginate (Fig. 19)...... P. laticollis (Casey)
- Head width across genae and eyes subequal, or genae narrower than eyes; anterior margin of head weakly emarginate, almost truncate (Fig 20)..................................................................................... 3
3. Clypeus thickened, tumid anteriorly, strongly declivous before labrum (Fig. 21).......................... P. latus (Fall)
- Clypeus normal, not raised medially, descending to labrum (Fig. 22)............................................ 4
4. Elytra shagreened (microsculptured), appearing dull.........................................................5
- Elytra shiny or glossy, lacking microsculpture............................................................. 10
5. Antennal club small, shorter than funicle, or subequal in length (Fig. 23).........................................6
- Antennal club distinctly larger, longer than funicle to subequal to scape (Fig. 24)...................................8
6. Elytral striae distinctly impressed and serially punctate; Coastal mountains........... P. pampinatus Paulsen, new species
- Elytral striae obsolete, longitudinal cracks (if present) not punctate; Sierra Nevadas................................ 7
7. Labrum large, as long as width of terminal maxillary palp; Klamath Mountains, Oregon .............. P. marshalli Paulsen
- Labrum small, shorter than width of terminal maxillary palp; northern Sierra Nevadas, California ........ P. potax Paulsen
8. Elytra lacking impressed, serially punctate striae................................................. P. opacus (Fall)
- Elytra with feebly to distinctly impressed, punctate striae..................................................... 9
9. Elytra short (about 2x pronotal length); Sierra Nevadas............................... P. barrae Paulsen, new species
- Elytra elongate (almost 3x pronotal length); coastal mountains........................ P. infernus Paulsen, new species
10. Form robust, elytra short, about 2x pronotal length.......................................................... 11
- Form elongate, elytra longer, almost 3x pronotal length...................................................... 13
11. Mesotibiae and metatibiae with external margin subserrate with 3–4 similarly sized teeth; northeastern Oregon............................................................................................. P. viriditinctus (Benesh)
- Mesotibiae and metatibiae with external margin usually with 1 larger tooth and proximal teeth when present distinctly smaller; northern California.................................................................................. 12
12. Antennal club unusually small, as short as funicle............................................ P. agassii (LeConte)
- Antennal club larger, distinctly longer than funicle........................................... P. pacificus (Casey)
13. Elytral color light brown or rufous with pronotal disc darker.................................................. 14
- Color uniformly darker piceous. If lighter (teneral), dorsum is unicolorous...................................... 15
14. Antennal club large, subequal to scape; posterior angles of pronotum greater than 90°; Washington south to northern Oregon.................................................................................... P. aeneus (Van Dyke)
- Antennal club smaller, distinctly shorter than scape; posterior angles of pronotum ~ 90°; known only from Humboldt County, California.......................................................................... P. californicus (Casey)
15. Antennal club large, distinctly longer than funicle; San Francisco Bay area........................ P. thoracicus (Casey)
- Antennal club smaller, subequal to funicle; southwestern Oregon ...................... P. umpquus Paulsen, new species
description: Published as part of Paulsen, M. J., 2017, Correction of existing generic and species concepts in Platyceroidini (Coleoptera: Lucanidae: Lucaninae) and the description of four new species of Platyceroides Benesh, pp. 346-378 in Zootaxa 4269 (3) on page 371, DOI: 10.11646/zootaxa.4269.3.2, http://zenodo.org/record/582450