REDIA, XCVII, 2014: 63-69 (*) Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, H-1525 Budapest, P.O. Box 102, Hungary. E-mail: kontschan.jeno@agrar.mta.hu (**) Consiglio per la ricerca e la sperimentazione in agricoltura – Research Centre for Agrobiology and Pedology, via Lanciola 12/A 50125 Firenze, Italy. Kontschán J., Mazza G., Nannelli R., Roversi P.F. – Nenteria extremica n. sp., a new Uropodina mites (Acari Mesostigmata) collected on Rhynchophorus ferrugineus in Italy, with notes on other Uropodina mites associated with the Red Palm Weevil. A new species of Uropodina mite was collected on the body and on the cocoons of the Red Palm Weevil Rhynchophorus ferrugineus (Olivier, 1790) in Italy. The new species (Nenteria extremica n. sp.) belongs to the genus Nenteria, but it differs from the other species in appendages of the gnathosoma, which are unique within this genus. The new species is described on the basis of females, males and nymphs. Some notes on the association of Uropodina with the Red Palm Weevils are given. Aegyptus rynchophorus Elbishlawi & Allam, 2007 and Aegypthus alhassa Al-Dhafar & Al-Qahtani 2011 are junior synonyms of Centrouropoda almerodai Hiramatsu & Hirschmann, 1992. KEY WORDS: Mites, Uropodina, new species, Red Palm Weevil, Italy. JENO ˝ KONTSCHÁN (*) - GIUSEPPE MAZZA (**) - ROBERTO NANNELLI (**) - PIO FEDERICO ROVERSI (**) NENTERIA EXTREMICA N. SP., A NEW UROPODINA MITE (ACARI MESOSTIGMATA) COLLECTED ON RHYNCHOPHORUS FERRUGINEUS IN ITALY, WITH NOTES ON OTHER UROPODINA MITES ASSOCIATED WITH THE RED PALM WEEVIL INTRODUCTION The Red Palm Weevil (RPW), Rhynchophorus ferru- gineus (Olivier, 1790), is one of most important pest species of palms in the Mediterranean and Subtropical regions. This species can be found as native pest in South- Eastern Asia and Melanesia where it is the most important pest of the coconut palm (MURPHY & BRISCOE, 1999; FALEIRO, 2006). Currently RPW is distributed in North Africa, southern Europe, the Middle East, and south- and southeast Asia (FIABOE et al., 2012). The first species of Uropodina associated with RPW was described by WIŚNIEWSKI et al. (1992) from Philippines, as Centrouropoda almerodai Hiramatsu & Hirschmann, 1992. Unfortunately the description was incomplete as it referred only to the deutonymphal stage. Later, several authors mentioned this Uropodina species from RPW for the first time in Europe, from Sicily (LONGO & RAGUSA, 2006; MAZZA et al. , 2011) and later in Malta (PORCELLI et al., 2009). Several unknown Uropodina mites were collected on the body and on cocoons of RPW in Italy last year, and these specimens we found among a new species of Nenteria, which is described here. MATERIAL AND METHODS The specimens were collected on the body of the weevils and on the cocoons. The specimens were cleared and mounted into Hoyers medium. The holotype is deposited in the collection of Acari in the Research Centre for Agrobiology and Pedology, Firenze, Italy (CRA ABP), and paratypes are also deposited in the Hungarian Natural History Museum (HNHM). Illustrations were made by the use of a drawing tube. Measurements are given in micrometres (μm); width of idiosoma was taken at the level of coxae IV. Abbreviation: RPW: Red Palm Weevil, St: sternal setae, ad: adanal setae. DESCRIPTION OF THE NEW SPECIES Nenteria extremica n. sp. (Figures I-IV) DIAGNOSIS - Dorsal shield covered by oval pits. All setae on dorsal shield needle-like, but j1 and four pairs of setae in row J pilose. Anterior margin of female genital shield with small spine. Corniculi covered by gnathosoma, setae h1 situated laterally and on small protuberances. MATERIAL EXAMINED - Holotype: female (CRA ABP). Italy, Catania (I), collected from cocoon of R. ferrugineus on palm (v39), 27 December 2012, R. Nannelli coll. Paratypes: 8 males and 9 females (CRA- ABP). Locality and date same as in holotype. One female, one deutonymph and one protonymph (CRA- ABP), Italy, Catania (I), collected from cocoon of R. ferrugineus on palm (v8), 30 January 2013, R. Nannelli coll. Four deutonymphs (CRA-ABP), Italy, Catania (I), collected on an adult female of R. ferrugineus (v6), 30 January 2013, R. Nannelli coll. Two females and four males (HNHM), Italy, Catania (I), collected from cocoon of R. ferrugineus on palm (V66), 8 January 2013, R. Nannelli coll. 10 protonymphs and one deuteronymph (CRA-ABP), Italy, Catania (I), collected from cocoon of R. ferrugineus on palm (v60), 8 January 2013, R. Nannelli coll. – Received 2 April 2014 Accepted 15 September 2014 Published 10 December 2014