Tragardhus (Mitragardhus) ewae, Kamiński, 2017

Kamiński, Marcin Jan, 2017, Afrotropical Melambiina: revision of the genus Tragardhus Koch, 1956 and redescription of Pseudemmallus Koch, 1956 (Tenebrionidae: Pedinini), Zootaxa 4347 (1), pp. 71-93 : 74-75

Tragardhus (Mitragardhus) ewae sp. nov.

http://zoobANk.oRg/URN:lsiD:zoobANk.oRg:Act:498AEFAB-4B51-43FA-86FD-5E19B9EFCE43 ( Figs 1M , 2B, F , 3A , 7 )

Type data. Holotype, mAle ( TMNH): "Z.A.76 / INgwAvUmA Dist. / GwAliweNi FoRest ", "HUmUs / X-1961 ", " N. LeleUp leg." . Paratypes, 4 femAles AND 2 mAles: sAme DAtA As holotYpe; mAle AND femAle ( TMNH): “S. AfR.: ZUlUlAND / SoDwANA BAY / 27.33 S – 32.38 E ”, “ 23.11.1992: E-Y: 2844 / mARsh foRest litteR / leg. ENDRÖDY-YoUNgA”; femAle ( TMNH): “S. AfR., KwAZUlU NAtAl / HlAtikUlU foR (NR. JoziNi ) / 27.19S – 32.00 E ”, “ 5.1.2004; mt. 661 / leAf litteR / A. BAlleRio& BUkhosiNi”; femAle ( TMNH): "S. AfR.: NAtAl / CApe ViDAl / 23.1.1990 ", "foRest litteR / leg. J. KlimAszewski " .

Etymology. NAmeD AfteR EwA RóżA NeUmANN (boRN oN AUgUst 6th, 2016), DAUghteR of mY fRieNDs KAtARzYNA AND ADAm NeUmANN.

Diagnosis. This species is similAR to T. (M.) nodosus, As both shARe A similAR pRoNotAl Disc stRUctURe (pUNctURes sitUAteD closelY, sURfAce betweeN them elevAteD). TheY cAN be sepARAteD bY the stRUctURe of the elYtRA (iNteRvAls 3, 5, AND 7 withoUt eloNgAteD tUbeRcles iN ewae , with obloNg tUbeRcles iN nodosus ) AND mAle pRotibiAe (withoUt meDiAN DilAtAtioN iN ewae , wiDeNeD meDiAllY, with pAtch of setAe iN nodosus ) AND metAtibiAe (with stRAight Apex iN ewae , cURveD ApicAllY iN nodosus — Fig. 2G ).

Description. BoDY—leNgth = 3.0–4.0 mm. HAbitUs As iN Fig. 3A .

DoRsAl siDe of heAD coveReD with coNspicUoUs coNflUeNt pUNctURes (0.1 DiAmeteRs ApARt). FRoNtoclYpeAl sUtURe coARse; with pAiR of Deep DepRessioNs locAteD NeAR meDiAN pARt. CANthUs sUbpARAllel At bAse. ClYpeAl emARgiNAtioN Deep (clYpeAl emARgiNAtioN wiDth: Depth RAtio cA. 4.6). LAbRUm wiDe (wiDth: leNgth RAtio cA. 2.7); DelicAtelY emARgiNAte iN miDDle; posteRioR thiRD coveReD with DeNse AND coNspicUoUs setAe. MeNtUm wiDest iN miDDle; flAt, Not coveRiNg cARDo oR stipes; ApicAllY with meDiAN iNDeNtAtioN; lAteRAl lobes, iN veNtRAl view, coveReD bY miDDle pARt. SUbmeNtUm tRiANgUlAR. ApicAl segmeNt of mAxillARY pAlpUs tRApezoiDAl; with seNsoRY fielD occUpYiNg whole pRoximAl eDge. SecoND segmeNt of mAxillARY pAlpUs eloNgAteD (leNgth: wiDth RAtio cA. 2.4). PAlpifeR with pAtch of loNg setAe locAteD NeAR Apex; with iNteRNAl sUlcUs foR mAxillARY pAlpUs visible fRom veNtRAl view. ANteRioR teNtoRiAl pit ciRcUlAR. EYe Not DoRsAllY shielDeD bY ANY keel. VeNtRAl pARt of eYe slightlY ReDUceD iN RelAtioN to DoRsAl pARt; thRee fAcets pReseNt betweeN cANthUs AND temple. ANteNNA RelAtivelY shoRt (ANteNNA: pRoNotUm leNgth RAtio cA. 0.9); thiRD ANteNNomeRe shoRt (3RD: 2ND ANteNNomeRe leNgth RAtio cA. 1.4); fifth ANteNNomeRe shoRt (leNgth: wiDth RAtio cA. 1.2); ANteNNomeRes 8–10 tRANsveRse.

PRoNotUm NARRoweR thAN elYtRA (elYtRA: pRoNotUm wiDth RAtio cA. 1.1); RelAtivelY wiDe (leNgth: wiDth RAtio of pRoNotAl Disc cA. 0.7); Disc DUll, coveReD with coNflUeNt pUNctURes, eAch poiNt eqUippeD with A siNgle setA. LAteRAl siDes of pRoNotAl Disc bisiNUAte. Disc wiDest iN miDDle; withoUt ApophYseAl DepRessioNs. BAsAl, lAteRAl AND ANteRioR emARgiNAtioN of pRoNotAl Disc AbseNt. BAse of pRoNotUm slightlY bisiNUAte. PosteRioR ANgles Not pRotRUDiNg beYoND bAse. PRoNotAl hYpomeRoN DUll; with coARse pUNctURes (1.0–2.0 DiAmeteRs ApARt); with sUbmARgiNAl iNDeNtAtioN. INteRcoxAl pRocess of pRosteRNUm DepResseD ApicAllY. PRocoxAe NARRowlY sepARAteD (pRocoxA: iNteRcoxAl pRocess wiDth RAtio cA. 2.0).

ElYtRAl stRiAe Not impResseD, visible As teN Rows of coNspicUoUs pUNctURes oN eAch elYtRoN (0.5 DiAmeteR ApARt)—of which two ARe sitUAteD veNtRAllY. INteRvAls coveReD with smAll RoUNDeD tUbeRcles (siNgle DiAmeteR ApARt); eAch tUbeRcle eqUippeD with NoticeAble setA. ElYtRAl bAse bisiNUAte; emARgiNAte. EpipleURoN NARRowiNg towARDs Apex; slightlY NARRoweR thAN NeighboRiNg elYtRAl iNteRvAl. IN its bAsAl hAlf, 9th iNteRvAl is oN sAme plANe As epipleURoN; posteRioRlY twistiNg to A DiffeReNt plANe thAN epipleURoN. ElYtRAl hUmeRUs DeNtAte, pRotRUDiNg lAteRAD. ScUtellUm RelAtivelY smAll; tRiANgUlAR. MetAthoRAcic wiNgs AbseNt.

MesoveNtRite withoUt pRocesses. MetAveNtRite RelAtivelY shoRt (metAcoxAl cAvitY: metAveNtRite (betweeN iNseRtioNs of meso- AND metAcoxAe) leNgth RAtio cA. 1.4). PRocess of fiRst AbDomiNAl veNtRite NARRow (DistANces betweeN mesocoxAe: metAcoxAe RAtio cA. 0.4). Fifth AbDomiNAl veNtRite withoUt sUbmARgiNAl sUlcUs. BAsAl twothiRDs coveReD bY Deep pUNctURes (0.1 DiAmeteR ApARt), sURfAce betweeN pUNctURes coveReD with micRoscUlptURe; ApicAl thiRD Not pUNctAte, bUt Also coveReD with micRoscUlptURe.

Meso- AND metAtRochANteRs NeARlY eNtiRelY coveReD bY Respective femoRA; eqUippeD with A siNgle setAe. MetAcoxA slightlY wiDeNeD (wiDth: leNgth RAtio cA. 1.5). TARsi of both sexes NARRow. MAle pRotibiA with shAllow meDiAN cAvitY. UNDeRsiDe of mAle metAtibiA coveReD with A Row of setAe; with Apex obtUse. MetAtibiA Not cURveD ApicAllY. FemAle legs simple.

AeDeAgAl tegmeN wiDest iN its bAsAl thiRD; UNipARtite. PARAmeRes DiviDeD (Up to 0.3 of whole tegmeN leNgth). ClAvA slightlY cURveD ApicAllY (hook-like); twisteD meDiAllY (NeAR its coNNectioN with tegmeN). PeNis of eveN wiDth AloNg most of its leNgth. BAsAl ApophYses of peNis RelAtivelY shoRt (cA. 0.4 of whole tegmeN leNgth).

MoRphologY of ovipositoR (boDY: ovipositoR leNgth RAtio cA. 5.8) AND femAle geNitAl tUbes coNsisteNt with those ReveAleD foR T. nodosus ( Fig. 5B ).

Distribution. This species hAs beeN collecteD iN the followiNg ecoRegioN of SoUth AfRicA (TRANsvAAl HighvelD tRANsitioNAl AReA AND TRopicAl sUbRegioN): MApUtAlAND coAstAl foRest mosAic ( Fig. 7 ).

Figures

FIGURE 1. Diagnostic characters of different biogeographic components of Melambiina. Aedeagal tegmen (A – C), spermatheca (D, E), head (F, G, L), protibia (H), 5 th abdominal ventrite (I, J) and elytra (K, M, N). Bermejoina aiunica Español, 1944 (E, H), Gridelliopus subsquamosus Koch, 1956 (K, L), Hanstroemium adelostomoide Koch, 1953 (G), Melambius barbarus (Erichson, 1841) (D), Melambius mideltensis Antoine, 1932 (B, J), Melasmana appenhageni Koch, 1948 (C), Oreomelasma oromii Español, 1975 (F), Peyerimhoffius plicatus (Lucas, 1846) (I), Silvestriellum alatum Koch, 1956 (A), Tragardhus ewae sp. nov. (N) and Zadenos delalandei (Mulsant & Rey, 1854) (M). Abbreviations: bc. — bursa copulatrix, spspermatheca, — sag—spermathecal accesory gland, ep—epipleuron, IX. and X in. — elytral intervals 9 and 10.

FIGURE 2. Diagnostic characters proposed for Mitragardhus, Tragardhus and chosen species. Pronotal disc (A, B, C), epipleuron (C), 5 th abdominal ventrite (D, E), elytral disc (F, H, I), metatibia (G) and protibia (J). Tragardhus (Tragardhus) biapicalis Koch, 1956 (I), T. (T.) glandipleurum Koch, 1956 (A, E, H, J), T. (Mitragardhus) ewae sp. nov. (B, F) and T. (M.) nodosus Koch, 1956 (D, G). White arrow indicates a characteristic apex of the metatibia of T. (M.) nodosus.

FIGURE 3. Habitus images of the studied species. Tragardhus (Mitragardhus) ewae sp. nov., paratype (A), T. (M.) nodosus Koch, 1956, syntype (B), T. (M.) ryszardi sp. nov., holotype (C, E), T. (M.) zuzannae sp. nov., holotype (D, F) and Pseudemmallus aspericollis (G).

FIGURE 5. Male and female terminalia of Tragardhus and Pseudemmallus. Ovipositor (A – D), genital tubes (C, D), aedeagal tegmen (E, G) and penis (F). Tragardhus (Tragardhus) glandipleurum Koch, 1956 (A, C – F), T. (Mitragardhus) nodosus (B) and Pseudemmallus aspericollis (G). Abbreviations: C 1 – C 3 — subsequent lobes of coxites, val—valvifer, ov—oviduct, bcbursa copulatrix, sp—spermatheca, par—paraproct, p—penis, cl—clavae.

FIGURE 7. Distribution of the genus Tragardhus.