The Neotropical mite genus Neopilizetes (Oribatida: Galumnidae): redescription of N. neotropicus, rediagnosis of the genus, and descriptions of four new species Author Amorim, Saulo S. Author Norton, Roy A. Author Oliveira, Anibal R. text Zootaxa 2018 2018-04-18 4410 3 567 599 journal article 30242 10.11646/zootaxa.4410.3.10 be9cb25c-5039-4f85-aad6-0a46bc659fb5 1175-5326 1221724 254FA7D4-BAA9-4504-902A-8A87DB5B789A Neopilizetes unumnasus n. sp. ( FIgS. 20–23 , TAbLE 1 ) Diagnosis . ROSTRUM WITH SMALL, SMOOTH, SUbRECTANgULAR MEDIAL PROjECTION bETWEEN INSERTIONS Of ROSTRAL SETAE ( ro ), ROUNDED IN DORSAL VIEW AND TRILObED IN fRONTAL VIEW; PRODORSUM AND NOTOgASTER COVERED WITH LONgITUDINAL CRESTS Of VARIOUS LENgTH, ALTERNATINg WITH ROWS Of SMALL, SHORT CRESTS OR TUbERCLES; NOTOgASTER WITH INCONSPICUOUS LONgITUDINAL DEPRESSIONS: UNPAIRED CENTRAL ONE IN ANTERIOR HALf AND PAIRED DEPRESSIONS IN POSTERIOR REgION jUST MEDIAL TO SETAE h1 AND p1 , WITH APPARENT LOW MOUND bETWEEN THEM; POSTERIOR MARgIN fLAT; SUbCAPITULUM COVERED WITH RETICULATED SHORT CRESTS. SETA 1c AbSENT (REPRESENTED ONLY bY ALVEOLUS). Etymology. THE SPECIES NAME unumnasus ALLUDES TO THE MEDIAL PROjECTION bETWEEN INSERTIONS Of ROSTRAL SETAE WITH ONE TIP, AS ObSERVED IN DORSAL VIEW. Dimensions. BODY LENgTH (N=3) 405–450µM AND WIDTH 325–342µM. MALES UNKNOWN. Integument. PRODORSUM bARELY COVERED WITH CEROTEgUMENT; MODERATELY COVERED IN NOTOgASTER AND DENSELY COVERED IN THE VENTRAL REgION. Prodorsum. WITH LONg LONgITUDINAL CRESTS, ALTERNATINg WITH ROWS Of SMALL, SHORT CRESTS OR TUbERCLES, bETWEEN LEVELS Of SETAE ro AND INTERLAMELLAR ( in ) SETAE, INTERRUPTED bY TRANSVERSE fLAW IN PROXIMAL THIRD ( FIgS. 20A, F , 21A, E , 22B ). ROSTRUM WITH SMALL, SMOOTH, SUbRECTANgULAR MEDIAL PROjECTION ROUNDED IN DORSAL VIEW AND TRILObED IN fRONTAL VIEW bETWEEN INSERTIONS Of ro , ( FIgS. 20F , 21E, F ). SETA ro , LAMELLAR ( le ) AND in DIRECTED MEDIALLY, bARbED, WITH LENgTH AbOUT 1/2 THEIR MUTUAL DISTANCE, ~20, 72 AND 65µM, RESPECTIVELY ( FIgS. 20A, C, F , 21A, E, F , 22A, B ); SENSILLUS ( ss ) THICK, SHARP–TIPPED, WITH A SERIES Of SLIgHTLY LONg bARbS OCCUPYINg ALMOST ITS ENTIRE EXPOSED LENgTH, ~105µM ( FIgS. 20B , 21C ). Notogaster. CIRCULAR TO PENTAgONAL IN SHAPE IN DORSAL VIEW ( FIg. 20A ). POSTEROLATERAL MARgINS ROUNDED TO NEARLY fLAT. WITH INCONSPICUOUS LONgITUDINAL DEPRESSIONS: UNPAIRED CENTRAL ONE IN ANTERIOR HALf AND PAIRED DEPRESSIONS IN POSTERIOR REgION jUST MEDIAL TO SETAE h1 AND p1 , WITH APPARENT LOW MOUND bETWEEN THEM ( FIg. 21A ). CUTICLE COVERED WITH LONgITUDINAL CRESTS Of VARIOUS LENgTH, ALTERNATINg WITH ROWS Of SMALL, SHORT CRESTS OR TUbERCLES. PTEROMORPH COVERED RADIALLY WITH LONg STRAIgHT CRESTS, WITH SOME SHORT CRESTS AMONg THEM. MOST NOTOgASTRAL SETAE SIMILAR IN SIzE TO in , ~72µM; p1 , p2 AND p3 , ~21–38µM. LYRIfISSURES im ObSERVED IN DORSAL VIEW; ih , ip AND ips ObSERVED IN DORSOLATERAL VIEW; ih AND ips CLOSE TO EACH OTHER, IN THE LEVEL Of SETA p3 ( FIg. 20A ). OPISTHONOTAL gLAND ( gla ) LOCATED bETWEEN LYRIfISSURES ih , im , ips , IN REgION Of p3 AND h3 SETAE. OCTOTAXIC SYSTEM INCOMPLETE, COMPRISINg TWO PAIRS Of SACCULES, Sa AND S2 ( FIgS. 20A , 21A–D , 22A ). FIGURE 20. Neopilizetes unumnasus n. sp. : A) dorsal view; B) ss , sensillus; C) in , interlamellar seta; D) subcapitulum; E) ventral view (legs and gnathosoma removed); F) rostrum frontal view. FIGURE 21. Neopilizetes unumnasus n. sp. : A) dorsal view—note depressions on notogaster (black arrows); B) notogastral setae detail; C) ss, sensillus; D) la seta; E) frontal view; F) rostrum detail. FIGURE 22. Neopilizetes unumnasus n. sp. : A) in, interlamellar seta; B) le, lamellar seta; C) ventral view; D) subcapitulum; E) genital plates; F) anal region. FIGURE 23. Neopilizetes unumnasus n. sp. : A) leg I antiaxial view (trochanter omitted); B) palp antiaxial view (trochanter omitted); C) leg II antiaxial view (trochanter omitted); D) chelicerae antiaxial view; E) leg III antiaxial view; F) region of seta ε (famulus) detail; G) leg IV antiaxial view. Ventral region. COXISTERNUM IRREgULARLY TUbERCULATE; ANOgENITAL REgION WITH RAISED RIDgES fORMINg IRREgULAR NETWORK Of CELLS. EPIMERAL SETATION 2–0–1–2; SETAE 1b , 3b , 4a AND 4b RIgID, SMOOTH, ACUMINATE AND SHORT, ~9µM ( FIg. 20E ); SETA 1c REPRESENTED ONLY bY ALVEOLUS. CIRCUMPEDAL CARINAE ( cp ) SHARP ( FIg. 22C ). DISTANCE bETWEEN gENITAL AND ANAL APERTURES AbOUT EqUAL TO LENgTH Of gENITAL PLATE. GENITAL PLATE COVERED WITH TUbERCULATE CEROTEgUMENT; APERTURE SUbqUADRATE, SLIgHTLY WIDER ANTERIORLY. GENITAL SETAE SIMILAR IN fORM TO EPIMERAL SETAE: g1 AND g2 ~9µM, INSERTED ON ANTERIOR MARgIN Of PLATE; g3 , g4 , g5 ALIgNED IN MIDDLE Of PLATE, g6 SIMILAR, bUT ON POSTERIOR MARgIN Of PLATE, ~7µM ( FIgS. 20E , 22E ). AggENITAL SETA ( ag ) NEAR POSTEROLATERAL CORNER Of gENITAL PLATE, SIMILAR TO EPIMERAL SETAE IN SHAPE, ~8µM. ANAL APERTURE NEARLY PENTAgONAL IN OUTLINE, WIDER POSTERIORLY; COVERED WITH TUbERCULATE CEROTEgUMENT; ANAL SETAE ( an1 , an2 ) SMOOTH, ACUMINATE, ~9µM; ADANAL SETAE ( ad1 , ad2 , ad3 ) SMOOTH AND ACUMINATE, ~13µM. LYRIfISSURE iad PARALLEL TO LATERAL MARgIN Of ANAL PLATE ( FIgS. 20E , 22E, F ). Gnathosoma. SUbCAPITULUM COVERED WITH RETICULATED SHORT CRESTS, ( FIgS. 20D , 22D ). TWO PAIRS Of ORAL SETAE ( or ), ~ 11µM. SETAE a , h AND m LONg, ~17–22µM ( FIg. 20D ). CHELICERAE DENSELY POROSE bETWEEN LINE en AND bASE Of MOVAbLE DIgIT; SETAE cha AND C hb LONg AND bARbED ~46 AND 34µM, RESPECTIVELY. TRägARDH'S ORgAN ( trg ) DIRECTED SLIgHTLY DORSAD, ~32µM ( FIg. 23D ). Legs. TRIDACTYLOUS. NOT COVERED WITH CEROTEgUMENT; MOST ARTICLES SMOOTH, EXCEPT TROCHANTER III–IV AND fEMUR I–IV. PRETARSI WITH LATERAL CLAWS THINNER THAN EMPODIUM ( FIgS. 23A, C, E, G ). SETAL fORMULAE (LEgS I–IV): TROCHANTER 1–1–1–1, fEMUR 4–4–2–2, gENU 3–3–1–2, TIbIA 4–4–3–3 AND TARSUS 20–15–15–12 ( TAbLE 1 ). LEg I fAMULUS ( ε ) SHORT, ~6µM, WITH EXPANDED TIP, INSERTED POSTEROLATERAL TO SOLENIDION ω1 ( FIg. 23F ). LYRIfISSURE ly AT bASE Of TARSUS, NEAR ARTHRODIAL MEMbRANE SLIgHTLY TO ANTIAXIAL SIDE. SOLENIDIA NUMbER, fORM AND DISTRIbUTION AS SHOWN IN TAbLE 1 . Material Examined. THE HOLOTYPE fEMALE AND 4 PARATYPES (2 MOUNTED IN SLIDES DISSECTED AND 2 MOUNTED ON A STUb fOR SEM) WERE COLLECTED ON 10 –I–2008, 13–VIII–2013 AND 22 – III –2015 bY ANIbAL R. OLIVEIRA AND SAULO S. AMORIM fROM SOIL –LITTER INTERfACE SAMPLES IN A CACAO PLANTATION AT UESC , ILHÉUS , BAHIA , BRAzIL , 14°47'49"S , 39°10'23"W . THE HOLOTYPE AND 2 PARATYPES ARE DEPOSITED IN THE ACAROLOgICAL COLLECTION AT UESC , 1 PARATYPE IS DEPOSITED IN THE ACAROLOgICAL COLLECTION AT THE ESCOLA SUPERIOR DE AgRICULTURA “LUIz DE QUEIROz” ( ESALQ ), UNIVERSIDADE DE SãO PAULO ( USP ), PIRACICAbA, SãO PAULO , BRAzIL , AND 1 PARATYPE IS DEPOSITED IN THE ACAROLOgICAL COLLECTION AT DEPARTAMENTO DE ZOOLOgIA E BOTâNICA, UNIVERSIDADE ESTADUAL PAULISTA ( UNESP ), DZSJRP, SãO JOSÉ DO RIO PRETO , SãO PAULO , BRAzIL .