Proterothrix modesta ( Trouessart, 1899 )

Constantinescu, Ioana Cristina, Chișamera, Gabriel Bogdan & Adam, Costică, 2018, Redescription of six feather mite species of the genus Proterothrix Gaud, 1968 (Analgoidea: Proctophyllodidae: Pterodectinae) from the “ Édouard Louis Trouessart ” Collection, Zootaxa 4486 (4), pp. 451-479 : 468-475

Proterothrix modesta ( Trouessart, 1899)

( FIGS. 17–20 )

Pterodectes diminutus modestus Trouessart 1899: 38 -39.

Pterodectes phyllurus var. modesta, Canestrini and Kramer 1899: 126 .

Proterothrix modesta, Park and Atyeo 1971: 69 .

Material examined. MALe LecTOTYPe (MNHN 39J16), 1 MALe PARALecTOTYPe (MNHN 44A11), 2 FeMALe PARALecTOTYPeS (MNHN 39J14, MNHN 39J15), FROM Manucodia ater (LeSSON) (CORVIDA: PARADISAeIDAe ), NEW GUINEA, NO OTHeR DATA; LecTOTYPe AND PARALecTOTYPeS DeSIGNATeD HeRe.

Description. MALE (LecTOTYPe, PARALecTOTYPe IN PAReNTHeSIS) ( FIGS 17A, B , 18A–E ). LeNGTH OF IDIOSOMA 550 (500), WIDTH 265 (250), LeNGTH OF HYSTeROSOMA 325 (300). PRODORSAL SHIeLD eNTIRe, ANTeROLATeRAL eXTeNSIONS WITH ROUNDeD TIPS, LATeRAL MARGINS WITHOUT INcISIONS, POSTeRIOR MARGIN WITH SMALL AcUTe MeDIAN eXTeNSION, LeNGTH 225 (205), WIDTH 207 (192), SURFAce WITH LARGe OVATe LAcUNAe ( FIG.17A ). ScAPULAR SeTAe se SePARATeD BY 115 (105). ScAPULAR SHIeLDS NARROW. HUMeRAL SHIeLDS WIDe, FUSeD VeNTRALLY WITH OUTeR ScLeROTIZeD AReAS OF ePIMeRITeS III. SeTAe cp SITUATeD VeNTRALLY ON HUMeRAL SHIeLD. SeTAe c2 FILIFORM, SITUATeD DORSALLY ON HUMeRAL SHIeLD. SUBHUMeRAL SeTAe c3 LANceOLATe 38 (37) × 14 (12). HYSTeRONOTAL SHIeLD WITH ANTeRIOR MARGIN STRONGLY cONcAVe IN MeDIAN PART, ANTeRIOR ANGLeS ROUNDeD, DISTANce FROM ANTeRIOR MARGIN TO BASeS OF SeTAe h3 300 (280), GReATeST WIDTH IN ANTeRIOR PART 180 (187), SURFAce WITH LARGe OVATe LAcUNAe. LATeRAL HYSTeRONOTAL ScLeRITeS PReSeNT, SITUATeD SLIGHTLY ANTeRIOR TO LeVeL OF TROcHANTeRS IV. OPISTHOSOMAL LOBeS SHORT AND WIDe, MUcH WIDeR THAN LONG, ROUGHLY RecTANGULAR, WITHOUT MeMBRANeS, POSTeRIOR MARGIN WITH TWO PAIRS OF SMALL SMOOTHeD TeeTH AT BASeS OF SeTAe h2 AND h3. SUPRANAL cONcAVITY eLONGATe, NARROWLY OVATe, MARGINS cLeARLY OUTLINeD. TeRMINAL cLeFT SMALL U-SHAPeD, 25 (28) IN LeNGTH. SeTAe f2 ANTeRIOR TO BASeS OF SeTAe ps2. SeTAe h1 SLIGHTLY POSTeRIOR TO LeVeL OF ANTeRIOR MARGIN OF SUPRANAL cONcAVITY, DISTANT FROM LATeRAL MARGINS OF OPISTHOSOMA. SeTAe ps1 LANceOLATe WITH ROUNDeD APeX, 28 (20) LONG, SITUATeD NeAR LATeRAL MARGINS OF OPISTHOSOMAL LOBeS, ANTeRIOR TO BASeS OF SeTAe h3. SeTAe c1 PReSeNT, SeTAe f2 FILIFORM, SeTAe h3 LeAF- LIKe, LANceOLATe WITH ROUNDeD POSTeRIOR MARGIN, WITH ReTIcULATe DORSAL PATTeRN 152 (137) × 50 (47) AND h2 eNLARGeD IN ANTeRIOR 2/3 250 (300) × 12 (13). DORSAL MeASUReMeNTS: c2–d2 133 (115), d2–e2 112 (100), e2–h3 100 (87), d1–d2 70 (55), e1–e2 65 (57), h1–ps2 45 (50), h2–h2 100 (102), h3–h3 58 (55), ps2–ps2 135 (140).

EPIMeRITeS I FUSeD INTO A V, POSTeRIOR eND cONNecTeD WITH ePIMeRITeS II BY TRANSVeRSe ScLeROTIZeD BANDS. EPIMeRITeS II LONG, WITH POSTeRIOR eNDS FRee. RUDIMeNTARY ScLeRITeS REPIIA PReSeNT, OVOID. EPIMeRITeS IIIA WITH STRAIGHT eXTeNSIONS DIRecTeD BAcKWARD AND BeARING BASeS OF SeTAe 4b. COXAL FIeLD I cLOSeD, cOXAL FIeLD II OPeN, cOXAL FIeLDS III ALMOST cLOSeD, cOXAL FIeLDS IV WITH WIDe ScLeROTIZeD AReAS AT BASeS OF TROcHANTeRS IV. EPIMeRITeS IVA PReSeNT, SMALL ( FIG. 17B ). GeNITAL ARcH 45 (38) LONG, 63 (60) WIDe, BASAL ScLeRITe OF GeNITAL APPARATUS ROUNDeD POSTeRIORLY; AeDeAGUS 190 (191) LONG, eXTeNDING TO LeVeL OF POSTeRIOR MARGIN OF IDIOSOMA. GeNITAL PAPILLAe SITUATeD ANTeRIOR TO LeVeL OF GeNITAL ARcH. OPISTHOVeNTRAL SHIeLDS NOT DeVeLOPeD. ADANAL SHIeLDS PReSeNT, OF IRReGULAR SHAPe, BeARING SeTAe ps3. ANAL SUcKeRS 20 (24) IN DIAMeTeR, cOROLLA INDeNTeD, WITH 10 TeeTH. SeTAe ps2 AcIcULAR, 63 (53) IN LeNGTH. VeNTRAL MeASUReMeNTS: 3a–4b 53 (48), 4b–4a 55 (50), 4a–g 95 (80), g–ps3 25 (28), ps3–ps3 28 (25), ps3–h3 75 (70).

LeGS I SLIGHTLY LONGeR THAN LeGS II, FeMORA I AND II eAcH WITH A VeNTRAL cReST ( FIG. 18A, B ). SeTA e OF TARSUS I FILIFORM. SeTAe d OF TARSI II, III MUcH SHORTeR THAN cORReSPONDING SeTAe f. TARSUS IV 53 (48) LONG, SeTAe d, e BUTTON- LIKe, SITUATeD IN BASAL AND APIcAL PARTS OF SeGMeNT, ReSPecTIVeLY ( FIG. 18D ). LeNGTH OF SOLeNIDIA: ω 1 I 23 (24), ω 1 II 21 (18), φ I 138 (117), φ II 102 (92), φ III 50 (42), φ IV 68 (67).

FEMALE (RANGe FOR 2 PARALecTOTYPeS) ( FIGS. 19A, B , 20A–E ). LeNGTH OF IDIOSOMA 820–830, WIDTH 350–352, AND LeNGTH OF HYSTeROSOMA 570–610. PRODORSAL SHIeLD eNTIRe, ANTeROLATeRAL eXTeNSIONS WITH ROUNDeD TIPS, LATeRAL MARGINS WITHOUT INcISIONS, POSTeRIOR MARGIN WITH SMALL AcUTe MeDIAN eXTeNSION, LeNGTH 250–251, WIDTH 300–305, SURFAce WITH LARGe OVATe LAcUNAe ( FIG.19A ). ScAPULAR SeTAe se SePARATeD BY 185–186. ScAPULAR SHIeLDS NARROW. HUMeRAL SHIeLDS WIDe, FUSeD VeNTRALLY WITH OUTeR ScLeROTIZeD AReAS OF ePIMeRITeS III. SeTAe cp SITUATeD VeNTRALLY ON HUMeRAL SHIeLD. SeTAe c2 FILIFORM, SITUATeD DORSALLY ON HUMeRAL SHIeLD. SUBHUMeRAL SeTAe c3 LANceOLATe, 37–40 × 13– 16. ANTeRIOR HYSTeRONOTAL SHIeLD ROUGHLY RecTANGULAR, ANTeRIOR AND POSTeRIOR MARGINS cONcAVe, GReATeST LeNGTH 355– 356, GReATeST WIDTH IN ANTeRIOR PART 280–285, SURFAce WITH LARGe OVATe LAcUNAe. SeTAe c1 PReSeNT. LeNGTH OF LOBAR ReGION 195–200, WIDTH AT LeVeL OF SeTAe h2 250–251. TeRMINAL cLeFT V-SHAPeD FOR MOST OF ITS LeNGTH, ITS MARGINS ALMOST TOUcHING IN ANTeRIOR 1/5 AND WITH SMALL cONcAVITY POSTeRIOR TO LeVeL OF SeTAe h2, LeNGTH 90–95. SUPRANAL cONcAVITY SMALL, OVOID. SeTAe h1 ON LOBAR SHIeLD AT LeVeL OF ANTeRIOR MARGIN OF SUPRANAL cONcAVITY, SURFAce OF LOBAR SHIeLD WITHOUT ORNAMeNTATION. SeTAe h2 SPINDLe-SHAPeD, WITH TeRMINAL FILAMeNT, 150–157 × 17–18. SeTAe ps1 SPIcULIFORM, SITUATeD cLOSeR TO INNeR THAN TO OUTeR MARGIN OF OPISTHOSOMAL LOBeS NeAR LOBAR APIceS, SeTAe h3 AcIcULAR, 40–42 LONG, ABOUT 1/3 THe LeNGTH OF TeRMINAL APPeNDAGeS. DORSAL MeASUReMeNTS: c2–d2 157–167, d2–e2 190–192, e2–h2 145–147, h2–h3 75–87, d1–d2 70–75, e1–e2 95–100, h1–h2 95–100, h2–ps1 87–88, h1–h1 90–95, h2–h2 200–207.

EPIMeRITeS I FUSeD AS A V, WITH LONG LATeRAL eXTeNSIONS . COXAL FIeLDS I, II WITHOUT LARGe ScLeROTIZeD AReAS, ePIMeRITeS IVA ABSeNT ( FIG. 19B ). TRANSLOBAR APODeMeS OF OPISTHOSOMAL LOBeS PReSeNT, FUSeD TO eAcH OTHeR ANTeRIOR TO TeRMINAL cLeFT. EPIGYNUM HORSeSHOe-SHAPeD, GReATeST WIDTH 132–137. DISTANce BeTWeeN PSeUDANAL SeTAe: ps2–ps2 120–121, ps3–ps3 40–45, ps2–ps3 55–56.

LeGS I SLIGHTLY LONGeR THAN LeGS II; FeMORA I, II eAcH WITH A WIDe VeNTRAL cReST. SeTAe d OF TARSI II–III MUcH SHORTeR THAN cORReSPONDING SeTAe f. LeNGTH OF SOLeNIDIA: ω 1 I 30–32, ω 1 II 30–31, φ I 137–140, φ II 117–120, φ III 55 – 65, φ IV 37 –38. ( FIG. 20A–D ).

Figures

FIGURE 17. Proterothrix modesta, male. A—dorsal view, B—ventral view.

FIGURE 18. Proterothrix modesta, male. A–D details of male legs, dorsal view, A—leg I, B—leg II, C—leg III, D—leg IV, E—opisthosoma of male, ventral view.

FIGURE 19. Proterothrix modesta, female. A—dorsal view, B—ventral view.

FIGURE 20. Proterothrix modesta, female. A–D details of female legs, dorsal view, A—leg I, B—leg II, C—leg III, D—leg IV, E—spermatheca and spermaducts of female. Abbreviations: hs—head of spermatheca, pd—primary spermaduct, sdsecondary spermaduct.