Eustrophopsis confinis
Creators: name: Pollock, Darren
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Tetratomidae
Eustrophopsis
Eustrophopsis confinis

description: <i>Eustrophopsis confinis</i> (LeConte, 1866) (Figs 6, 13, 22, 30) <i>Eustrophus confinis</i> LeConte, 1866: 152.— Horn, 1888: 35; Dury, 1906: 260; Leng, 1920: 238; Csiki, 1924: 10; Hatch, 1965: 66; Poole and Gentili, 1996: 299; LeSage, 1991: 246; Majka and Pollock, 2006: 53. Lectotype (here designated), sex unknown, labelled “Wis / Type 4780 / E. confinis Lec ”, in MCZ. <b>Diagnosis</b> <i>Eustrophopsis confinis</i> is the only Nearctic species of Eustrophinae with a combination of widely separated eyes, and transverse ridges on the outer surface of the meso- and metatibiae. In fact, it may be the only world <i>Eustrophopsis</i> with widely separated eyes. Also, its almost uniformly dark color separates <i>E</i>. <i>confinis</i> from <i>E</i>. <i>bicolor</i>. <b>Description</b> TL 4.8-6.1 mm; GEW 2.4-3.1 mm. Body (Fig. 6) ovate, subparallelsided; dorsal and ventral color uniformly dark piceous to black; antennomeres 1-4 and 11 slightly lighter in color than antennomeres 5-10; dorsal pubescence relatively long, conspicuous; eyes (Fig. 13) widely separated (space 1-1.5 x length of antennomere 1), inner margin deeply emarginate; antennomeres (Fig. 22) 5-10 subquadrate; antennal sensilla completely annular (as in Fig. 25); last maxillary palpomere unmodified, fusiform; prosternal process triangular, moderately narrowed distally, extended to slightly short of posterior margin of procoxae; prothoracic episternal suture present; elytral punctation coarse, punctures arranged in longitudinal striae (Fig. 6); meso- and metatibiae with oblique ridges (as in Fig. 16). <b>Distribution</b> (Fig. 30) Although specimens are seemingly rarely collected, <i>E</i>. <i>confinis</i> exhibits one of the broadest west-east ranges. Th e species is known from western British Columbia to Nova Scotia. Th e single record from Saskatchewan is the most northerly known specimen of Eustrophinae in North America. US distribution: ID, MI, ME, NE, NH, SD, WI. <b>Natural history</b> Label data: <i>Polyporus anceps</i> (ME). Chantal (1985) stated that no natural history data were known to him, but that <i>E</i>. <i>confinis</i> should be similar to other members of the group. <b>Material examined</b> Specimens were examined from the following Canadian localities: <b>BRITISH COLUMBIA:</b> McIntyre Cr., Oliver, 6.VI.1959, R.E. Leech, (CNC, 1); Radium, 4.VI.1953, B.F. &amp; J.L. Carr, lot 5, (CARR, 3); same locality, 4.VI.1953, B.F. &amp; J.L. Carr, lot 5, (DAPC, 2); Trinity Valley, 16.VIII.1927, J.R.L. Howell, (PFC, 1); Vernon, 11.V.1943, H. Leech, on grass, (UBC, 1); Victoria, (MCZ, 1); Tappen, 3.VI.1978, B.F. &amp; J.L. Carr, lot 1, (DAPC, 1). <b>SASKATCHEWAN:</b> Road 914, 82 km N. Jct. Hwy. 165, 30.VII.1986, B.F. &amp; J.L. Carr, lot 2, (DAPC, 1). <b>MANITOBA:</b> Duck Mtn. Prov. Pk., 19-24.VI.1981, Ashworth, Schwert &amp; Keller, open gravelly mud with sparse vegetation by water’s edge, (DAPC, 1); Riding Mt. Pk., 2.VI.1938, W.J. Brown, (CNC, 1); Sandilands Forest, 15.VIII.1993, N.J. Holliday, (JBWM, 1). <b>ONTARIO:</b> Constance Bay, 16.V.1933, W.J. Brown, (CNC, 1). <b>NOVA SCOTIA:</b> Cumberland Co., Wentworth, 21.V-5.VII.1965, B. Wright, (NSMC, 2).
description: Published as part of <i>Pollock, Darren, 2008, Review of the Canadian Eustrophinae (Coleoptera, Tetratomidae), pp. 261-290 in ZooKeys 2 (2)</i> on pages 280-282, DOI: 10.3897/zookeys.2.30, http://zenodo.org/record/576400
description: {"references": ["LeConte J (1866) List of the Coleoptera of North America. Part I. Smithsonian Miscellaneous Collections (6) 140: 1 - 78.", "Horn G (1888) Miscellaneous coleopterous studies. Transactions of the American Entomological Society 15: 26 - 48.", "Dury C (1906) Ecological notes on some Coleoptera of the Cincinnati region, including seven new species. Journal of the Cincinnati Society of Natural History 20 (7): 251 - 256.", "Leng C (1920) Catalogue of the Coleoptera of America, north of Mexico. John D. Sherman, Jr., Mount Vernon, 470 pp.", "Csiki E (1924) Pars 77. Serropalpidae. Coleopterorum Catalogus. Volume 17. W. Junk, Berlin.", "Hatch M (1965) Th e Beetles of the Pacific Northwest. Part IV: Macrodactyles, Palpicornes, and Heteromera. University of Washington Press, Seattle, 268 pp.", "Poole R, Gentili P (Eds) (1996) Fauna Insecta Nearctica. Vol. 1: Coleoptera, Strepsiptera. Entomological Information Services, Rockville, 827 pp.", "LeSage L (1991) Family Melandryidae, false darkling beetles. In: Bousquet Y (Ed) Checklist of Beetles of Canada and Alaska. Agriculture Canada, Ottawa, 245 - 248.", "Majka C, Pollock D (2006). Understanding saproxylic beetles: new records of Tetratomidae, Melandryidae, Synchroidae, and Scraptiidae from the Maritime Provinces of Canada (Coleoptera: Tenebrionoidea). Zootaxa 1248: 45 - 68.", "Chantal C (1985) Les Tetratomidae (Coleoptera) du Quebec. Fabreries 11 (3): 43 - 66 + maps."]}