taxonID	type	description	language	source
03F187BAFFF2317DFF57FA52FCEEFD30.taxon	description	Figures Ι – 2. Dorsal habitus of major males. Ι Dorcus brevis (length 30 mm) 2 Dorcus parallelus (length 26 mm). Scale bar = 5 mm. (Fig. 3). In D. parallelus, the angles are distinctly removed from the base of the elytra (Fig. 4). The humeral angles of D. brevis are generally more strongly dentate and the humeri produced forward of the scutellum, while in D. parallelus the humerus is less strongly dentate and more or less in line with the scutellum. In addition, males of D. parallelus have a dense field of setae on the internal face of the metatibia (Fig. 5), but this patch is not present on males of D. brevis (Fig. 6). The clypeus is distinctly broader in males of D. parallelus. In both species, the mandibles of major males have a single large dorsal tooth, but the dentition of the mandibles of minor males is clearly distinct. Even the smallest minor males of D. parallelus have mandibles that are of the same basic shape as major males, but they are simply reduced in size (Fig. 7). In contrast, minor males of D. brevis have two distinct internal teeth below the dorsal tooth and are abruptly curved internally (Fig. 8). The form of the male genitalia is radically different in the two species. The flagellum of D. parallelus is longer than the entire length of the body and is weakly flared at the apex (Fig. 9). The flagellum of D. brevis is less than half as long, with a large lobe-like sac at the apex (Fig. 10). The genitalia of the European species, D. parallelipipedus, differs from either species in being more strongly expanded medially and in possessing a trilobed apex (Fig. 11). 3 Figures 3 – 4. Outline of body shape in females. 3 Dorcus brevis 4 Dorcus parallelus, arrow pointing to posterior pronotal angle distinctly removed from the base of the elytra.	en	Paulsen, M. J. (2010): Stag beetles of the genus Dorcus MacLeay in North America (Coleoptera, Lucanidae). ZooKeys 34 (34): 199-207, DOI: 10.3897/zookeys.34.292
03F187BAFFF0317DFF57FCABFDFCFAA1.taxon	description	Coincidentally, I encountered a second pair of D. parallelipipedus recently accessioned at the FMNH that bore handwritten labels indicating “ Mexico, Nuevo Leon, Monterey (sic), Aug 1976 ”. The presence of a second, more recent pair of D. parallelipipedus from Mexico at first suggested that the species might be introduced there. However, on further examination I found that other handwritten locality labels of the same style from the accessioned collection were erroneous (with incorrect countries). While it is not impossible that the species is adventive in Mexico, it is more likely given the nomenclatural history of Dorcus that the common D. parallelipipedus has been mislabeled in these two instances.	en	Paulsen, M. J. (2010): Stag beetles of the genus Dorcus MacLeay in North America (Coleoptera, Lucanidae). ZooKeys 34 (34): 199-207, DOI: 10.3897/zookeys.34.292
03F187BAFFF0317AFF57FA52FCF0FBBB.taxon	distribution	Distribution. Specimens examined from Florida, Georgia, Illinois, Missouri, New Jersey, South Carolina, Tennessee, and Virginia. In addition to these states, Benesh (1937) listed Alabama, Indiana, Mississippi, North Carolina, and Oklahoma, while Benesh (1944) added Kansas, Maryland, and Michigan.	en	Paulsen, M. J. (2010): Stag beetles of the genus Dorcus MacLeay in North America (Coleoptera, Lucanidae). ZooKeys 34 (34): 199-207, DOI: 10.3897/zookeys.34.292
03F187BAFFF7317BFF57FB28FBE3FAA1.taxon	description	Dorcus parallelus nanus Casey 1909: 278, synonym. Type material: Syntype male (USNM) labeled a) “ CASEY / bequest / 1925 ”; b) reddish-orange label “ TYPE USNM / [36202] ”. Syntype female (UNSM) labeled a) as male; b) reddish-orange label “ [nanus – 2] / PARATYPE USNM / [36202] ”. 7 8 Figures 7 – 8. Head of minor males, dorsal view. Inset showing dentition of right mandible. 7 Dorcus parallelus 8 Dorcus brevis.	en	Paulsen, M. J. (2010): Stag beetles of the genus Dorcus MacLeay in North America (Coleoptera, Lucanidae). ZooKeys 34 (34): 199-207, DOI: 10.3897/zookeys.34.292
03F187BAFFF7317BFF57FB28FBE3FAA1.taxon	distribution	Distribution. Specimens examined from Alabama, Illinois, Indiana, Iowa, Maryland, Michigan, Nebraska, New York, Ohio, South Carolina, Tennessee, and Virginia.	en	Paulsen, M. J. (2010): Stag beetles of the genus Dorcus MacLeay in North America (Coleoptera, Lucanidae). ZooKeys 34 (34): 199-207, DOI: 10.3897/zookeys.34.292
03F187BAFFF63179FF57FA52FEC0FD1D.taxon	description	Coll.) ”; d) reddish-orange paper “ Holotype / male symbol CNHM / [Dorcus / mexicanus / Benesh] ”; e) handwritten “ Dorcus / mexicanus / MS Benesh ”, on reverse “ Det. Dec. 15, 1943 / B. Benesh ”. Female allotype labeled a) female symbol; b) as c of holotype; c) on reddish-orange paper “ Allotype / CNHM female symbol / [Dorcus / mexicanus / Benesh] ”. This species is distributed in Europe, Asia, and Northern Africa (Bartolozzi & Sprecher-Uebersax 2006). Acknowledgments I thank James Boone (FMNH) and Gary Hevel (USNM) for their help in receiving type material on loan, and Phil Harpootlian (Simpsonville, SC) for providing specimens of D. brevis for study. Auto-Montaged images were supported, in part, by NSF- DBI 0500767.	en	Paulsen, M. J. (2010): Stag beetles of the genus Dorcus MacLeay in North America (Coleoptera, Lucanidae). ZooKeys 34 (34): 199-207, DOI: 10.3897/zookeys.34.292
