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

description: <i>Eustrophopsis bicolor</i> (Fabricius, 1798) (Figs 5, 12, 21, 29) <i>Mycetophagus bicolor</i> Fabricius, 1798: 497 (type (s) not examined); Melsheimer, 1853: 143; Le- Conte, 1873: 335; Provancher, 1877: 467; Horn, 1888: 35; Weiss, 1919: 133; Leng, 1920: 238; Csiki, 1924: 8; Viedma 1971; Poole and Gentili 1996: 299; LeSage 1991: 246. According to LeConte (1873: 335) “the proper authority for this species is Say, its first describer; <i>Mycetophagus bicolor</i> Fabr. is probably a <i>Platydema</i> ”. I have seen no other such reference, and all sources consulted have listed Fabricius as the author of this species; this was done even by Say (1826). <b>Diagnosis</b> Members of this species are readily distinguished by the following combination of features: outer surface of meso- and metatibiae with numerous transverse ridges; eyes narrowly separated; much of ventral surface reddish, contrasting darker dorsal color; antennomere 11 yellow-red, exhibiting a distinct contrast to antennomeres 5-10. <b>Description</b> TL 4.2-6.5 mm; GEW 2.0- 3.2 mm. Body (Fig. 5) elongate oval, moderately tapered posteriorly; dorsal color dark piceous to black; antennae tricolored: antennomeres 1-4 red, 5-10 piceous, antennomere 11 yellow-red, distinctly contrasting against preceding darker antennomeres; maxillary palpi similar in color to basal antennomeres; venter a combination of dark (same as dorsum) and lighter colored sclerites (abdominal ventrites in most specimens contrasting darker color of thorax); dorsal pubescence relatively long, conspicuous; eyes narrowly separated (Fig. 12), or almost contiguous (space &lt;length of antennomere 1), inner margin moderately emarginate; antennomeres (Fig. 21) 2-4 short, submoniliform, antennomeres 5-10 widened, becoming more triangular toward antennomeres 9-10; antennal sensilla completely annular (as in Fig. 25); last maxillary palpomere not modified; procoxal process triangular, narrowed distally, extended to slightly short of posterior margin of procoxae; prothoracic episternal suture present; elytral punctation coarse, punctures arranged in longitudinal striae (Fig. 5); meso- and metatibiae with oblique ridges present (as in Fig. 15). <b>Distribution</b> (Fig. 29) Th is is one of the most widely distributed Nearctic species of Eustrophinae, with a primarily eastern distribution. In Canada, it has not been collected west of Winnipeg, MB and extends east to Quebec. In the United States, it seems to have a mainly eastern distribution, although specimens have been collected in Arizona, California and Idaho. Specimens are also known from Mexico. US distribution: AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, ND, NE, NJ, NM, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV, WY. <b>Natural history</b> Chantal (1985: 53) noted the species as occurring under dead tree bark and also gave the following as fungal substrates on which adults were collected: <i>Pleurotus sapidus</i>, <i>Polyporus squamosus</i>, <i>P</i>. <i>betulinus</i>, <i>P</i>. <i>versicolor</i>, <i>P</i>. <i>confragosa</i>. Adults of <i>E</i>. <i>bicolor</i> are known to be often found in the same micro-habitats as <i>S</i>. <i>repandus</i> (Chantal 1985; Pollock, pers. observ.). In the summer of 2005, the author found multiple adults of <i>E</i>. <i>bicolor</i> and <i>S</i>. <i>repandus</i> on and in a rotting fungusy log near Lockport, MB. From 2006 to 2008, specimens were collected on the same log; in the summer of 2008, <i>E</i>. <i>bicolor</i> was absent, but <i>S</i>. <i>repandus</i> were still present. Label data: underside of fungusy, dead log at night (MB), on piece of cut wood at night (MB), fungusy stump of <i>Acer negundo</i> (MB), bracket fungus (ON), in rotting <i>Pleurotus</i> (PQ), on trunk of dead <i>Ulmus americana</i> (PQ), under bark of dead maple (PQ), under bark of rotting trunk of <i>Pinus eliottii</i> with polypore fungi (Bahamas), ex <i>Fomes</i> on <i>Salix</i> (Bahamas), under bark of <i>Fagus</i> (AR), <i>Trametes versicolor</i> (AR), <i>Meripilus giganteus</i> (AR), polypore tree fungus (AR), under rotting oak bark (CT), in litter at base of dying <i>Ailanthus</i> (CT), large orange polypore shelf fungus [? <i>Polyporus sulphureus</i>] on standing tree trunk (CT), <i>Omphalotus olearius</i> (CT), under bark (DE), shelf fungi (FL), <i>Griffolia</i> fungus (FL), <i>Polyporus hypnoides</i> (FL), <i>Polyporus sulphureus</i> (FL, MA), under bark of dead pine (FL), hibernating under bark (GA), under bands of tar paper on apple trees (IL), <i>Armillariella mellea</i> (GA), <i>Pleurotus ostreatus</i> (IL), on shelf fungi (KS), in sweetgum stump (LA), <i>Polyporus adustus</i> (LA), <i>Panus rudis</i> (MA, NJ), under bark of dead <i>Pinus virginiana</i> (MA), under bark dead standing <i>Quercus</i> (MA), in <i>Peromyscus</i> nest debris under bark dead standing <i>Liriodendron</i> (MA), under bark of stump of <i>Prunus serotina</i> (MA), fungus on bark (MS), injured cypress (NC), oak (NC), under bark dead standing pine (NC), under oak bark (NC), <i>Pleurotus</i> sp. (NC, OK), in mushroom (NC), <i>Trametes hispida</i> (ND), under hardwood bark (NJ), ex fungus on <i>Mimosa</i> stump (NJ), on polypore on dead <i>Quercus</i> (TX), polypore fungus (UT), <i>Polyporus squamosus</i> (VT), under poplar bark (WI). <b>Material examined</b> Specimens were examined from the following Canadian localities: <b>MANITOBA:</b> Winnipeg, King’s Park, D.A. Pollock, sitting on underside of fungusy, dead log at night, (DAPC, 1); same locality, 13.VIII.1998, D.A. Pollock, sitting on piece of cut wood at night, (DAPC, 1); Winnipeg, Univ. of Manitoba campus, nr. apiary, 49°48’30”N, 97°07’35”W, 27.VII.1999, D.A. Pollock, on thin white fungus on underside of small log, (DAPC, 7); Winnipeg, University of Manitoba campus, along Red River, 25-28.VIII.1996, D.A. Pollock, at night, on fungusy stump of <i>Acer negundo</i>, (DAPC, 1); Winnipeg, University of Manitoba campus, forest along Red River (south), 11.VII.1999, D.A. Pollock, crawling on fungusy stump of <i>Acer negundo</i> at night, (DAPC, 1). <b>ONTARIO:</b> Bolton, 4.V.1978, R.S. Anderson, (ROME, 1); Chatham, 23.VIII.1929, G.M. Stirrett, (CNC, 1); Dunn Twp, 29.VIII.1971, W.W. Judd, (CNC, 1); Dunnville, 24.VIII.1938, S.D. Hicks, very teneral, (CNC, 2); Grand Bend, 6.VII.1939, T.N. Freeman, (CNC, 1); Guelph, 23.VIII.1990, Heather Dewar, bracket fungus, (DEBU, 4); Lanark, 2.VIII.1979, S.D. Hicks, (CNC, 1); same locality, 4.VII.1976, S.D. Hicks, (CNC, 1); Leamington, 18.VI.1940, W.J. Brown, (CNC, 1); same locality, 24.V.1970, T.D. Galloway, (JBWM, 1); Ottawa, 4.IX.1912, Beaulieu, 1 teneral, (CNC, 3); same locality, 2.X.1912, Beaulieu, (CNC, 1); same locality, 14.VIII.1912, Beaulieu, (CNC, 1); same locality, 9.IX.1912, Beaulieu, (MCZ, 3); Peel Co., Port Credit, 6-11.VIII.1965, I.M. Smith, (ROME, 1); Pelee Is., 3.VII.1931, W.J. Brown, (CNC, 1); Pelee Island, 1.VII.1940, W.J. Brown, slightly teneral, (CNC, 1); Pelee Island, Lake Erie, 17.VII.1981, S.W. Nichols, (CUIC, 4); Pelee Island, marsh on SE shore, 14.VIII.1980, S.W. Nichols, flooding shore of sand spit, (CUIC, 1); Point Pelee, 26.VII-4.VIII.1999, A. Tesolin, malaise &amp; pan trap 41°59’N, 82°27.5’W, (DEBU, 2); Prince Edward Co., 21.V.1916, Brimley, (CNC, 1); same locality, 3.VI.1917, Brimley, (CNC, 1); same locality, 31.VII.1938, Brimley, (CNC, 1); same locality, 23.IV.1922, Brimley, (CNC, 1); same locality, 21.V.1916, Brimley, (CNC, 1); same locality, 20.V.1923, Brimley, (CNC, 1); same locality, 7.VII.1946, Brimley, (CNC, 1); same locality, 3.VI.1923, Brimley, (CNC, 1); same locality, 18.IX.1921, Brimley, (CNC, 3); Rondeau Prov. Pk., 2.VIII.1982, L. LeSage, ex. <i>Polyporus</i>, (CNC, 9); Toronto, R.J. Crew, (CUIC,2); same locality, 24.VIII.1895, R.J. Crew, (CUIC, 1); same locality, 12.IX.1908, R.J. Crew, (ROME, 1); Wheatley, 22.VII.1965, (FSCA, 2); Windsor, 2-16.VIII.1982, S. Marshall, (CNC, 1); Essex Co., Point Pelee Natl. Pk. Forested area by W beach, 21.VIII.1999, O. Lonsdale, malaise/ pan traps, (DEBU, 1); Pt. Pelee, 18.VII.1978, J.M. Cumming, (DEBU, 1); Dundas, 15.VII.1975, J.M. Cumming, (DEBU, 1); Guelph, 25.VII.1977, A.A. Konecny, (DEBU, 3); same locality, 3.VIII.1976, Paul R. Heels, (DEBU, 1); same locality, 25.IV.1973, R.E. Roughley, (DEBU, 1); London, 19.V.1975, J.M. Heraty, (DEBU, 1); Pr. Edw. Co., Brimley, 2.VI.1940, (AMNH, 1); same locality, 31.VII.1938, (AMNH, 1); Pt. Pelee Nat. Pk., 13.VIII.1983, S. Marshall, C. Logan, &amp; S. Girigsby, (DEBU, 1); Tilbury, 30.IX.1965, Rosenberg collection, (USNM, 1); Toronto, 19.VII.1976, W.A. Attwater, (DEBU, 1); same locality, 10.VII.1977, W.A. Attwater, (DEBU, 1); same locality, 15.VIII.1981, Lonny Coote, (DEBU, 1). <b>QUEBEC:</b> Aylmer, 25.V.1934, W.J. Brown, (CNC, 1); Chambly, Longueuil, 14.VIII.1976, S. Laplante, in rotting Pleurote, (SLC, 2); Deux-Montagnes, Parc Paul-Sauvé, 29.IV.1990, S. Laplante, (SLC, 1); Gatineau Pk. nr. Meach L., 1.IX.1982, A. Davies, berlese fleshy fungi on tree, (CNC, 1); Gatineau, Aylmer, 28.V.1991, S. Laplante, on trunk of dead <i>Ulmus americana</i> at 22:00, (SLC, 2); Huntingdon, Havelock, 14.V.1981, S. Laplante, (SLC, 1); Lacolle, 10.VIII.1945, W.J. Brown, (CNC, 4); Missisquoi, Scottsmore, 9.VI.1979, S. Laplante, (SLC, 1); Montreal, 5.VIII.1985, E.J. Kiteley, UV light trap, (CNC, 1); same locality, 16.VII.1967, E.J. Kiteley, (CNC, 1); same locality, 13.VI.1984, E.J. Kiteley, UV light trap, (CNC, 2); same locality, 2.IX.1969, E.J. Kiteley, (CNC, 1); same locality, 26.VI.1967, E.J. Kiteley, (CNC, 1); same locality, 28.V.1967, E.J. Kiteley, (CNC, 1); same locality, 17.IX.1972, E.J. Kiteley, (CNC, 1); same locality, 3.VII.1970, E.J. Kiteley, under bark, (CNC, 1); same locality, 6.VII.1976, E.J. Kiteley, UV light trap, (CNC, 1); same locality, 23.VI.1968, E.J. Kiteley, on log, (CNC, 1); same locality, 28.VIII.1972, E.J. Kiteley, UV light trap, (CNC, 1); same locality, 8.VII.1978, E.J. Kiteley, UV light trap, (CNC, 1); same locality, 28.VII.1980, E.J. Kiteley, UV light trap, (CNC, 1); same locality, 17.VII.1977, E.J. Kiteley, UV light trap, (CNC, 1); Rigaud For. at Ottawa River, 11.V.1988, A. &amp; Z. Smetana, (CNC, 2) Vaudreuil, Rigaud, 21.V.1982, P. Bélanger, under bark of dead maple, (CMNC, 1).
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 277-278, DOI: 10.3897/zookeys.2.30, http://zenodo.org/record/576400
description: {"references": ["Fabricius J (1798) Supplementum entomologiae systematicae. Proft &amp; Storch, Hafniae, 572 pp.", "Melsheimer F (1853) Catalogue of the described Coleoptera of the United States. Revised by S. S. Haldeman and J. L. LeConte. Washington, Smithsonian Institution, xvi + 174 pp.", "Provancher L (1877) Petite Faune Entomologique du Canada, precedee d'un Traite Elementaire d'Entomologie. Volume I - les Coleopteres. Darveau, Quebec City, 785 pp + errata.", "Horn G (1888) Miscellaneous coleopterous studies. Transactions of the American Entomological Society 15: 26 - 48.", "Weiss H (1919) Notes on Eustrophus bicolor Fabr., bred from fungi (Coleoptera). Psyche 26: 132 - 133.", "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.", "Viedma M de (1971) Redescripcion de la larva de Eustrophinus bicolor y consideraciones acerca de la position sistematica del genero Eustrophinus (Col. Melandryidae). Annales de la Societe Entomologique de France (N. S.) 7 (3): 729 - 733.", "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.", "LeConte J (1873) Synonymical remarks upon North American Coleoptera. Proceedings of the Academy of Natural Sciences of Philadelphia 3: 321 - 336.", "Say T (1826) Descriptions of new species of coleopterous insects inhabiting the United States (continued). Journal of the Academy of Natural Sciences of Philadelphia 5: 237 - 284.", "Chantal C (1985) Les Tetratomidae (Coleoptera) du Quebec. Fabreries 11 (3): 43 - 66 + maps."]}