Blindus discolor, Liu & G.-D & R, 2013

Liu, S. - S., G. - D & R, P., 2013, Taxonomy Of The Genus Blindus Mulsant Et Rey From China, With Description Of Two New Species (Coleoptera, Tenebrionidae, Pedinini), Acta Zoologica Academiae Scientiarum Hungaricae 59 (3), pp. 197-211 : 202-206

Blindus discolor sp. n.

( Figs 1–11B )

Typematerial – Holotype, male, BeijiaMountain , DanbaCounty, Sichuan, China, 29.

vii. 1999, Guo-DongRenleg. ( MHBU). Paratypes: 2 males , labelledastheholotype (MHBU).

Etymology – ThespecificnameisaLatinnounandreferstotheinfraspecificdifferent bodycolour.

Diagnosis – Thenewspeciesissimilarto Blindusreichardti Medvedev, 1968, butcanbedistinguishedfromthelatterbythefollowingcharacteristics: (1) headsmooth, withsmallandpartlyconfluentpunctures; (2) fronsnearly flatbetweeneyes, interocularspaceabout 4.78 timesasaneyediameter; (3) antennomereIIIabout 2.12 timesaslongasII; (4) prosternalprocessdifferent inshape, longitudinallydeeplydepressedinmiddle; (5) protibiadifferentin shape, inneredgedistinctlycurved, suddenlydilatedatbasal 2/3; (6) ventral surfaceofprotibiawithalargefusiformdepression; (7) metatibiadistinctly curved; (8) aedeagusdifferentinshape.

Description – Male. Bodyelongateelliptical, stronglyarched; colorationfromred- dishbrowntoblack, antennomereI–II, VIII–XI, mouthpartsandlegsslightlypaler. Head hexagonal, smooth, withsmallandpartlyconfluentpunctures; labrumtransverselyovoid, slightlyemarginateatfrontborder, scatteredwithyellowhairs; clypeusdeeplyemarginateatfrontborder, slightlyconvex; frontoclypealsutureobscure; genaefeeblyconvexand slightlyextended, templesdistinctlyreduced; fronsnearlyflatbetweeneyes, interocular spaceabout 4.78 timesasaneyediameter; mentumnearlyhexagonal, narrowlylongitu- dinallyconvexinmiddle, longitudinallydepressedatbothsides, withsparseyellowpu- bescence; maxillarypalpuswithsecuriformterminalpalpomere. Antennaelong, reaching baseofpronotum, withshorthairs; antennomereIthickandstrong, IIveryshort, IIIabout 1897). Scale bars = 1 mm.

2.12 timesaslongasII, VIItoXIgraduallywideningindividually, XIelongateovoid, ratio of the length (the width) of antennomeres I–XI from basal to apical as follows: 26.0(16.0): 17.0(15.0): 36.0(15.0): 26.0(15.0): 25.0(16.0): 26.0(16.0): 27.0(17.0): 25.0(17.0): 26.0(19.0): 23.0(19.0): 29.0(21.0).

Pronotumtransverse, about 1.53 timesaswideaslong, widestatbase, withsmall puncturesinmiddlebutthepuncturesbecomeelongateandconfluentatsides; anterior marginemarginatewithnarrowbeadonlyinlateral 2/5; sidesarcuate, narrowlybeaded, feeblynarrowingforwardfromwidestpoint, thenstronglynarrowingaftermiddle; basal marginslightlyemarginate, withnarrowintactbead; anterioranglessharp, posterioranglesroundlyrectangular. Scutellumwidelytriangular, withsmallpunctures. Elytradis- tinctlypunctato-striate, withlargepunctures, intervalsflatwithsmallpunctures; lateral marginsvisibleonlyathumeriindorsalview. Pseudo-epipleuronintact, graduallynarrowedtoapices. Prohypomerawithlongwrinkles. Prosternumwithirregularwrinkles andsparseshorthairsinmiddle, prosternalprocesslongitudinallydeeplydepressedin middle, verticallydescendingatpointedapexinlateralview.

Protibiadistinctlywideningfrombasetoapex, withtwoequilengthapicalspurs, inneredgedistinctlycurved, suddenlydilatedatapical 1/3, withdenseshortspinesnear apex; outeredgeslightlyarched, withdenseshortspinesnearapex; dorsalsurfaceslightly convex, scatteredwithshorthairs; ventralsurfacewithadistinctlargefusiformdepression, smoothwithindepressionandwithsparseshortspinesandhairsonoutsideofthe depression. ProtarsomeresItoIIIextremelydilated, withdensefuzzinventralsurface. Mesotibianearlystraight, withdenseshortspinesandhairs. Metatibiadistinctlycurved, smooth, withsparsehairs. Metafemoracurved, withsparsehairs. Ratioofthelengthof metatarsomeres I to IV as follows: 68.0: 38.0: 24.0: 50.0.

Aedeagusshort, length 1.61 mm, width 0.57 mm.

Female. Unknown.

Measurements. Bodylength 10.5 mm; width 4.5 mm.

Distribution – China: Sichuan.

Figures

Fig. 1. Antennae of Blindus, dorsal view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potaninipotanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B.strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897).Scale bars = 1 mm.

Fig. 2. Head of Blindus, dorsal view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potaninipotanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B. strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897). Scale bars = 1 mm.

Fig. 3. Pronotum of Blindus, dorsal view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potaninipotanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B.strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897).Scale bars = 1 mm.

Fig. 4. Prosternal process of Blindus, ventral view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potanini potanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B. strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire,

Fig. 5. Protibiae of Blindus, dorsal view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potanini potanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B. strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897). Scale bars = 1 mm.

Fig. 6. Protibiae of Blindus, ventral view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potanini potanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B.strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897).Scale bars = 1 mm.

Fig. 7. Metatibiae of Blindus, dorsal view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potaninipotanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B. strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897).Scale bars = 1 mm.

Fig. 8. Metafemora of Blindus, ventral view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potaninipotanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B. strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897).Scale bars = 1 mm.

Fig. 9. Aedeagus of Blindus, dorsal view: A = B. contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potanini potanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B. strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897). Scale bars = 1 mm.

Fig. 10. Spiculum gastrales of Blindus, dorsal view: A = B. contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potanini potanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B. strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897).Scale bars = 1 mm.

Fig. 11. Habitus of Blindus, male, dorsal view: A = Blindus contractus sp. n., B = B. discolor sp. n., C = B. curvotibius Ren et Zhang, 2010, D = B. fulvicornis (Reitter, 1889), E = B. potanini nudiventris Medvedev, 1968, F = B. potanini potanini Medvedev, 1968, G = B. reichardti Medvedev, 1968, H = B. strigosus (Faldermann, 1835), I = B. thibetanus (Fairmaire, 1897).Scale bars = 1 mm.