A new species of Oxyoppia (Oxyoppiella) (Acari: Oribatida: Oppiidae) from Iran

Turkish Journal of Zoology Turk J Zool (2017) 41: 630-637 © TÜBİTAK doi:10.3906/zoo-1611-32 http://journals.tubitak.gov.tr/zoology/ Research Article A new species of Oxyoppia (Oxyoppiella) (Acari: Oribatida: Oppiidae) from Iran Elizabeth A. HUGO-COETZEE 1,2, 3 4 3 *, Parisa LOTFOLLAHI , Ayda ABBASI-KALO , Elnaz MOVAHEDZADE National Museum, Bloemfontein, South Africa 2 Department of Zoology and Entomology, University of the Free State, Bloemfontein, South Africa 3 Department of Plant Protection, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz 4 Department of Soil Science and Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran 1 Received: 15.11.2016 Accepted/Published Online: 14.02.2017 Final Version: 17.07.2017 Abstract: A new oppiid species (Acari: Oribatida: Oppiidae), Oxyoppia (Oxyoppiella) minuscula sp. nov. from the Marand region in northwestern East Azerbaijan Province in Iran, is described and illustrated. A new generic (subgeneric) diagnosis of Oxyoppia (Oxyoppiella) Subías and Rodríguez, 1986 is given, and a key to all known species is provided. Key words: Generic and subgeneric diagnosis, Iran, key, mites, Oxyoppiinae 1. Introduction Oppiidae is one of the largest families of oribatid mites (Subías, 2004). This family is also very species-rich in Iran, with 21 genera and 65 species (including subspecies) recorded (Akrami, 2015; Akrami and Bastan, 2015; Movahedzade et al., 2016), which constitutes almost 17% of the known oribatid mites in this country. The genus Oxyoppia Balogh & Mahunka, 1969 currently consists of 33 species with a collectively cosmopolitan distribution (except in the Nearctic and boreal regions) (Subías, 2004). Oxyoppia comprises 4 subgenera: Oxyoppia Balogh & Mahunka, 1969 (3 species); Aciculoppia Subías & Rodríguez, 1986 (3 species); Dzarogneta Kulijev, 1978 (14 species); and Oxyoppiella Subías & Rodríguez, 1986 (13 species, 1 subspecies). Only 2 described Oxyoppia species have been recorded from Iran: O. (Dzarogneta) intermedia Subías & Rodríguez, 1986 and O. (Dzarogneta) iranensis Akrami & Subías, 2008. This paper describes a new species under the name Oxyoppia (Oxyoppiella) minuscula sp. nov. Previously, an unknown O. (Oxyoppiella) species was recorded for Iran (Keshavarz Jamshidian et al., 2015) with too few specimens to describe it. However, the new species described here differs from the unknown species recorded previously (see short description by Keshavarz Jamshidian et al., 2015). An updated generic and subgeneric diagnosis for Oxyoppia and O. (Oxyoppiella) is given and a key and distribution map to all known O. (Oxyoppiella) species are presented. * Correspondence: 630 2. Materials and methods Soil samples were taken in wheat fields and grasslands in the Marand region, East Azerbaijan Province, Iran, during mid-September 2014. Samples were taken at the three top horizons and transferred to the laboratory. Mites were extracted with a Berlese funnel, stored in Oudeman’s solution, cleared in Nesbitt’s fluid, and slide-mounted in Hoyer’s medium (see Krantz and Walter, 2009 for compositions). All measurements are given in micrometers. Body length was measured in dorsal view from the tip of the rostrum to the posterior edge of the notogaster. Body width was measured in dorsal view at the widest part. Setae and legs were measured in the view in which they could be best observed. Leg setation is given in the following sequence: trochanter – femur – genu – tibia – tarsus (including famulus). Solenidia are given in brackets. General terminology follows that of Norton and BehanPelletier (2009). 3. Results and discussion 3.1. Generic diagnosis: Oxyoppia Balogh and Mahunka, 1969 (From Balogh and Mahunka, 1969; Balogh, 1983; Subías and Rodríguez 1986.) Type species: Oppia spinosa Hammer, 1958. Bothridial seta fusiform, setiform or lanceolate, not globular; lamellar seta mostly closer to interlamellar seta HUGO-COETZEE et al. / Turk J Zool than to rostral seta; 0–3 pairs of sigillae between bothridia; humeral region with developed process; notogastral seta c2 mostly well developed, adjacent to humeral process, 9–10 pairs of short to long notogastral setae; 4–6 pairs of genital setae, 1 pair of aggenital, 2 pairs of anal, 3 pairs of adanal setae; lyrifissure iad in various positions; ad1 mostly postanal, ad3 preanal. 3.2. Subgeneric diagnosis: Oxyoppia (Oxyoppiella) Subías and Rodríguez, 1986 (From Subías and Rodríguez, 1986 and known species, including new species described below.) Type: Oppiella polynesia Hammer, 1972. Small species (length 160–287); rostrum not incised [except possibly O. bituberculata bituberculata (Balogh, 1958), rostrum bidentate in Balogh (1961a), rounded in Mahunka (1983)], lamellar costula present, translamella mostly present [possibly absent in O. vtorovi (Rjabinin, 1987)]; bothridial seta scopulate, fusiform to lanceolate fusiform; interbothridial tubercles present or absent; humeral process distinct, additional crista present or absent; 10 pairs of notogastral setae, c2 present, medially to humeral process, but shorter than other setae, other notogastral setae smooth or ciliate, short to medium in length, position of seta lm to la variable; ad1 postanal. 3.3. Description of new species: Oxyoppia (Oxyoppiella) minuscula sp. nov. (Figures 1A and 1B) Specific diagnosis. Translamella present; weak crista present anterior of notogaster; ciliated notogastral setae, setae lm anteromedially to la; shallow apodeme 4; cerotegumental extensions at pedotectum II present; adanal seta ad3 posteromedially to aggenital seta, ad2 posterior to lyrifissure iad, iad inverse apoanal, almost longitudinally orientated. Measurements. Holotype (female): length 166, width 81; paratypes, all female (n = 8), length: mean 173 (range 160–180); width: 83 (82–85). Integument. Body surface smooth; exobothridial region weakly granulated, cerotegumental extensions at pedotectum II. Prodorsum. Rostrum rounded; rostral seta (ro 8–12) located dorsolaterally, slightly thickened, smooth, lamellar seta (le 6–8) thin, weakly ciliate, interlamellar seta (in 3–6), exobothridial seta (ex 8–9) thin, smooth, le closer to in than to ro, ex inserted on tubercle anterolaterally to bothridium; distinct lamellar costula present, extending from the bothridium to le; curved translamella present, less distinct than lamellar costula, le inserted on tubercle at junction of costula and translamella; interbothridial tubercle present posterior to in, extending to anterolateral of in; bothridium with posterior tubercle; bothridial seta (bs 20–31) fusiform to scopulate, head with 13 to 16 setulae of similar lengths on the outer side, inner side with very small indistinct cilia; distinct sigillae anterior of bothridium visible, sigillae between in could not be observed. Notogaster. Distinct humeral process present, additional weak crista present posterior to in; 10 pairs of notogastral (...truncated)