Pseudoholostrophus (Holostrophinus) discolor
Creators: name: Pollock, Darren
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Tetratomidae
Pseudoholostrophus
Pseudoholostrophus discolor

description: <i>Pseudoholostrophus</i> (<i>Holostrophinus</i>) <i>discolor</i> (Horn, 1888) (Figs 2, 9, 18, 26) <i>Holostrophus discolor</i> Horn, 1888: 36.— Leng, 1920: 238; Csiki, 1924: 10; Poole and Gentili, 1996: 299; LeSage, 1991: 246; Nikitsky, 1998: 43, Plate 7 figs 12-15; Young and Pollock, 2002: 416. Lectotype (here designated), sex unknown, labelled “Va. / Henry Ulke Beetle Coll. CMNH Acc. No. 1645 / Holostrophus discolor Horn / LECTOTYPE Eustrophus discolor Horn design. DA Pollock 2008”, in CMNH. Paralectotype in MCZ. <b>Diagnosis</b> The smooth meso- and metatibiae, widely separated eyes, conspicuous dorsal pubescence, shelf-like anterior pronotal margin, and eastern distribution serve to separate this species from all other Nearctic eustrophines. <b>Description</b> TL 3.6-5.7 mm; GEW 1.6-2.4 mm; body (Fig. 1) elongate oval, rather parallel-sided; dorsal color rufous, pronotum in most specimens slightly darker than elytra; some specimens with lighter humeral area on elytra; antennomeres 1-5 rufous, 6-10 rufopiceous, 11 light rufous; venter uniformly red-brown; dorsal pubescence relatively long, conspicuous, with some erect hairs; eyes (Fig. 9) widely separated (space&gt; 3x length of antennomere 1), inner eye margin slightly emarginate; antennae (Fig. 18) relatively short, antennomere 7-11 distinctly widened; antennomere 7 triangular, 8-10 distinctly wider than long; antennal sensilla completely annular (as in Fig. 25); last maxillary palpomere slightly widened, subsecuriform; prosternal process elongate, spatulate distally, extended to past posterior margin of procoxae, bent dorsally at distal end; prothoracic episternal suture absent; elytral punctation relatively coarse, punctures not arranged in longitudinal striae; meso- and metatibiae with scattered short spines, oblique ridges absent (as in Fig. 15). <b>Distribution</b> (Fig. 26) Th is species is known from the fewest Canadian localities of any Nearctic eustrophine, i.e. only one locality in southern Quebec and one in New Brunswick. Th e species has a broader eastern distribution in the United States. US distribution: IN, MA, MD, NH, PA, RI, TN, VA. <b>Natural history</b> Given that specimens of <i>P</i>. <i>discolor</i> are rarely collected, there are very few data available on its habits or biology. Label data include the following: in polypore fungus; malaise trap (NH); intercept trap (PA). According to Chantal (1985) specimens are known from small polypores on trees, notably cherry (<i>Prunus</i>) and maple (<i>Acer</i>). A single specimen from New Brunswick (CNC) bears a label stating “on or near fleshy polypore fungi on beech log”. <b>Material examined</b> Specimens were examined from the following Canadian localities: <b>QUEBEC</b>: [or Quebec City], 7.VIII.1962, J.-C. Aubé, (DAPC, 1); same locality, 7.VIII.1962, (FMNH, 2); Ste-Foy Quebec, Co., 31.VII.1962, J.-C. Aube, (AMNH, 2). <b>NEW BRUNSWICK</b>: Carelton Co., Wakefield, “Bell Forest Preserve”, 46.2200°N 67.7231° W, 16.IX.2006, R.P. Webster, hardwood forest, on or near fleshy polypore fungi on beech log, (CNC, 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 269-270, DOI: 10.3897/zookeys.2.30, http://zenodo.org/record/576400
description: {"references": ["Horn G (1888) Miscellaneous coleopterous studies. Transactions of the American Entomological Society 15: 26 - 48.", "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.", "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.", "Nikitsky N (1998) Generic Classification of the Beetle Family Tetratomidae (Coleoptera, Tenebrionoidea) of the world, with description of new taxa. Pensoft Publishers, Sofia-Moscow, 80 pp.", "Young D, Pollock D (2002) Family 99. Tetratomidae. In: Arnett RH Jr, Th omas M, Skelley P, Frank J. (Eds). American Beetles. Volume 2. Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press, Boca Raton. 413 - 416.", "Chantal C (1985) Les Tetratomidae (Coleoptera) du Quebec. Fabreries 11 (3): 43 - 66 + maps."]}