Blindus contractus, 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 : 199-201

Blindus contractus sp. n.

( Figs 1–11 A )

Typematerial – Holotype, male, GongbukaVillage, KangdingCounty , Sichuan, Chi- na, 8. viii. 2009, Zhen-HuaGaoleg. ( MHBU). Paratypes. 1 male, 1 female, labelledasthe holotype ( MHBU) .

Etymology – ThespecificnameisaLatinadjectiveandreferstotheslenderbody.

Diagnosis – Thenewspeciesissimilarto B. reichardti Medvedev, 1968, butcanbedistinguishedfromthelatterbythefollowingcharacteristics: (1) bodyratherslender; (2) antennomereIIIabout 2 timesaslongasII; (3) basal marginofpronotumwithnarrowbeadonlyinlateral 1/4; (4) pronotumdifferentinshape, widestatbasal 1/2; (5) prosternalprocessdifferentinshape, longitudinallyslightlyconvexinmiddle; (6) metatibiadistinctlycurved; (7) metafemoraventrallyslender, withonesharpprocessneartheapex; (8) ae- deagusdifferentinshape.

Description – Male. Bodyslenderlyelliptical, arched; black, antennomereI–II, VIII–XI, mouthpartsandtarsireddishbrown. Headhexagonal, withdistinctandlargepuncturesin middleandsmallpuncturesatsides; labrumtransverselyovoid, emarginateatfrontbor- der, scatteredwithyellowhairsonbothsides; clypeusdeeplyemarginateatfrontborder, slightlyconvex; frontoclypealsutureextremelyobscure; genaefeeblyconvexandslightly extended, templesreduced; fronsconvexbetweeneyes, interocularspaceabout 5.08 times asaneyediameter; mentumhexagonal, widelylongitudinallyconvexinmiddle, longitu- dinallydepressedinbothsides, withsparseyellowpubescence; maxillarypalpuswithse- curiformterminalpalpomere. Antennaelong, reachingbaseofpronotum, withshorthairs; antennomere I thick and strong, II very short, III about 2 times as long as II, VII to XI each graduallywidening, XIelongateovoid, ratioofthelength (thewidth) ofantennomeres I–XI from basal to apical as follows: 25.0(17.0): 18.0(14.0): 36.0(14.0): 29.0(16.0): 27.0(16.0): 25.0(16.0): 29.0(18.0): 26.0(19.0): 26.0(19.0): 25.0(19.0): 30.0(20.0).

Pronotumslightlytransverse, about 1.34 timesaswideaslong, widestatmiddle, withsmallpuncturesinmiddlebutthepuncturesbecomeelongateandconfluentatsides; anteriormarginemarginatewithnarrowbeadonlyinlateral 1/3; sidesarcuate, strongly narrowingforwardandfeeblysobackwardfromthewidestpoint, withnarrowbead; basal marginnearlystraight, withnarrowbeadonlyinlateral 1/4; anterioranglessharp, poste- rioranglesnearlyrectangular. Scutellumwidelytriangular, withobscurepunctures. Elytra punctato-striate, striateobscureatbase, becomingdistincttoapices, withlargepunctures, intervalsflat, irregularlypunctatewithseveraltransversewrinkles; lateralmarginvisible onlyathumeriindorsalview. Pseudo-epipleuronintact, graduallynarrowedtoapices. Prohypomerawithlongwrinkles. Prosternumwithirregularwrinklesandsparseshort hairsinmiddle, prosternalprocesslongitudinallyslightlyconvexinmiddle, verticallyde- scendingatroundapexinlateralview.

Protibiagraduallywideningfrombasetoapex, inneredgesmooth, nearlystraight, withdenseshortspinesnearapex, withtwoequilengthapicalspurs; outeredgestraight, withdenseshortspinesnearapex; dorsalsurfacescatteredwithfinepuncturesandshort hairs; ventralsurfacewithadistinctellipticallargedepression, smoothindepressionand withsparseshortspinesandhairsonoutsideofthedepression. ProtarsomeresItoIIIextremelydilated, withdensefuzzinventralsurface. Mesotibiaslightlycurved, withshort spinesandhairs. Metatibiadistinctlycurved, withsparsehairsandshortspines. Metafe- moracurved, withsparsehairsandonesharpprocessneartheapexinventralsurface. Ratio of the length of metatarsomeres I to IV as follows: 60.0: 30.0: 25.0: 41.0.

Aedeagusshort, length 1.44 mm, width 0.44 mm.

Female. Bodywiderthanthatofmale. Protibiawithoutdepression. Protarsomeres ItoIIInotdilated. Metatibiastraight. Metafemorastraight, withoutprocessneartheapex ofventralsurface.

Measurements. Bodylength 9.5 mm; width 4.0– 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.