Description of the larvae and pupae of eight species of the tribe Sitonini Gistel, 1848 (Coleoptera, Curculionidae) from Central Europe Author Sprick, Peter text Zootaxa 2017 2017-09-28 4324 3 401 435 journal article 31941 10.11646/zootaxa.4324.3.1 24a2ebdb-c5cb-46ef-9302-e491aceb8802 1175-5326 998318 8135023D-Ab89-4B5A-Ae7D-A67189C7Cbe7 Sitona cylindricollis Fåhraeus, 1840 ( FIgS 27–29c ) Body . LeNgTH: 3.6–4.2 MM, MAXIMUM WIDTH (AT THe leVel OF PROcOXAe): 2.4–2.7 MM, HeAD WIDTH (AT THe leVel OF eYeS): 0.8–0.9 MM, PROTHORAX WIDTH (AT WIDeST PlAce): 1.1–1.2 MM (♀, ♂). EYeS HeMISPHeRIcAl. BODY MODeRATelY elONgATe, WHITe OR gRAYISH. PRONOTUM SlIgHTlY ROUNDeD, APPROXIMATelY 1.6 TIMeS AS WIDe AS lONg. MeTANOTUM A lITTle lONgeR THAN MeSONOTUM. AbD. I–III OF AlMOST eQUAl leNgTH, AbD. VI–VI gRADUAllY DIMINISHeD, AbD. VII SeMIcIRcUlAR, AbD . VIII NARROW, AbD. IX DISTINcTlY SMAlleR THAN THe PReceDINg SegMeNTS, ReDUceD. UROgOMPHI RelATIVelY elONgATe, cURVeD AND Well ScleROTIZeD. Chaetotaxy . SeTAe OF HeAD OF UNeQUAl leNgTH AND SHAPe, bROWN, HAIR-FORM OR THORN-lIke, bASeD ON PROTUbeRANceS. ROSTRUM WITH A PAIR OF rs ; HeAD cAPSUle beARINg 1 vs , 2 VeRY SHORT, WeAklY DeVelOPeD sos 1-2 , 2 os 1-2 AND 2 pas 1-2 ( FIgS 27c, 29c ). PRONOTUM WITH 2 as 1-2 , 2 ds 1-2 , ls , 2 sls 1-2 AND 2 pls 1-2 ( FIgS 28c, 29c ). All SeTAe OF PROTHORAX PlAceD ON SMAll PROTUbeRANceS, MODeRATelY elONgATe, eQUAl IN leNgTH. CHAeTOTAXY OF MeSOTHORAX AND MeTATHORAX VeRY SIMIlAR, eAcH OF THeM cONSISTINg OF 3 PAIRS OF RelATIVelY lONg d 1-3 , PlAceD ceNTRAllY ( FIg. 28c ). TeRgAl PARTS OF AbD. I–VII eAcH WITH 7 PAIRS OF SeTAe, DIFFeReNT IN SIZe, THORN-lIke, WHIcH FORM A RegUlAR TRANSVeRSe ROW AlONg THe POSTeRIOR MARgIN. SeTAe NO. 1, 3, 5 AND 6 Well VISIble, PlAceD ON DISTINcT PROTUbeRANceS; SeTAe NO. 2, 4 AND 7 VeRY SHORT, WeAklY VISIble, SO AT FIRST VIeW cHAeTOTAXY OF eAcH SegMeNT SeeMS TO cONSISTS OF 4 PAIRS OF SeTAe. AbD. VIII WITH ONe PAIR OF THORN-lIke, Well VISIble SeTAe lATeRAllY AND A PAIR OF SHORT, WeAklY VISIble SeTAe ceNTRAllY ( FIgS 28c, 29c ). EAcH AbD. I–VIII WITH A PAIR OF SHORT l 1-2 , PlAceD clOSe TO THe bORDeR OF THe TeRgUM ( FIg. 29c ). STeRNAl PARTS OF eAcH AbD. VII–VIII WITH 3 PAIRS OF MIcROSeTAe v 1-3 (VeNTRAl S.), lOcATeD POSTeRIORlY ( FIgS 27c, 29c ). AbD. IX WITH 2 SHORT SeTAe PlAceD DORSAllY, clOSe TO UROgOMPHI ( FIgS 27c, 29c ). EAcH UROgOMPHUS beARS A PAIR OF SHORT SeTAe.