(acari: oribatida) from ethiopia

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Et–11–1 –Ethiopia, 9°06'N, 38°09'E, 2810 m a.s.l.,. Cholomu forest, top of mountain, Hagenia abissinica forming the canopy, moss,. 6.11.2011, coll.
A N N A L E S Z O O L O G I C I (Warszawa), 2013, 63(1): 45-55

TWO NEW SPECIES AND NEW RECORDS OF ORIBATID MITES (ACARI: ORIBATIDA) FROM ETHIOPIA SERGEY G. ERMILOV1, * and LEONID B. RYBALOV2 1

Phytosanitary Department, Nizhniy Novgorod Referral Center of the Federal Service for Veterinary and Phytosanitary Inspection, Gagarin 97, Nizhniy Novgorod 603107, Russia; e-mail: [email protected] 2 Laboratory of Soil Zoology and General Entomology, Institute of Ecology and Evolution, Russian Academy of Sciences, Lenin 33, Moscow 119071, Russia; e-mail: [email protected] * Corresponding author

Abstract.— The present study is based on material collected during a two-month RussianEthiopian expedition in October and November 2011. An annotated checklist of identified oribatid mite taxa is presented. Two new oribatid mites of the family Oppiidae, Separatoppia concava sp. nov. and Ramusella (Rectoppia) ginchiensis sp. nov., are described from moss of Cholomu forest (Southern Ethiopia). An identification key to all known species of Separatoppia is given. Eighteen species, 11 genera and two families are recorded for the first time from Ethiopia. The genus Furcoribula and species Trhypochthonius tectorum and Furcoribula furcillata are recorded for the first time from the Ethiopian region.  Key words.— oribatid mites, Oppiidae, Separatoppia, Ramusella (Rectoppia), new species, new record, checklist, fauna, key, Ethiopia.

INTRODUCTION This paper is a part of our continuing studies on Ethiopian oribatid mite fauna (Ermilov et al. 2012a, 2012b). The present study is based on material collected during a two-month Russian-Ethiopian expedition in October and November 2011. An annotated checklist of identified oribatid mite taxa is presented below (see Checklist of oribatid mites section). In the course of taxonomic identification we found two new species of the family Oppiidae, one belonging to the genus Separatoppia Mahunka, 1983 and the other to Ramusella (Rectoppia) Subías, 1980. Separatoppia is a small genus that was proposed by Mahunka (1983) with Oppia africana Evans, 1953 as the type species. Currently, the genus comprises five species, which have a pantropical distribution. Earlier PL ISSN 0003-4541 © Fundacja Natura optima dux doi: 10.3161/000345413X666093

– two species of Separatoppia were recorded from Ethiopia (Ermilov et al. 2011, 2012a): S. gracilis Mahunka, 1997 and S. horvathae Ermilov, Sidorchuk and Rybalov, 2011. The main generic characters of Separatoppia are presented by Mahunka (1983) and summarized by Subías and Balogh (1989). It is a Oxyoppiinae with the following combination of characters (including additions of authors): costulae and transcostula well-developed; rostral setae inserted dorso-laterally on prodorsum; lamellar setae inserted on a separate large tubercles before the transcostula; lamellar setae inserted nearer to interlamellar setae, than to the rostral setae; sensilli with smooth or barbed dilated head; interbothridial region with median tubercles and muscle sigillae; humeral processes present (exception: absent); notogaster with nine pairs of setiform notogastral setae and one pair of notogastral alveoli (c); genital plates with six pairs of genital setae; adanal

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setae ad1 inserted in postanal position, ad3 inserted in preanal position; lyrifissures iad located in paraanal position. Ramusella (Rectoppia) is a small subgenus that was proposed by Subías (1980) with Oppia mihelcici Pérez-Íñigo, 1965 as the type species. Currently, the subgenus comprises 10 species, which have are cosmopolitan distribution. Earlier this genus has been not recorded from Ethiopia. The main generic characters of Ramusella (Rectoppia) are presented by Subías (1980) and summarized by Subías and Balogh (1989). It is a Multioppiinae with the following combination of characters (including additions of authors): costulae and transcostula usually present, thin; rostral setae inserted dorsally on prodorsum, straight, their apical half divergent; interlamellar setae present; lamellar setae inserted nearer to interlamellar setae, than to the rostral setae; sensilli fusiform, ciliate; interbothridial region with three pairs of muscle sigilla; notogaster with nine pairs of setiform notogastral setae and one pair of notogastral alveoli (c); genital plates with five (rarely four) pairs of genital setae; adanal setae ad1 inserted in postanal position; lyrifissures iad located in paraanal position. The new species is described below under the names Separatoppia concava sp. nov. and Ramusella (Rectoppia) ginchiensis sp. nov. In addition, an identification key to all known species of Separatoppia is given.

MATERIALS

Et–11–2 – Ethiopia, 9°06’N, 38°09’E, 2810 m a.s.l., Cholomu forest, top of mountain, Hagenia abissinica forming the canopy, litter, 6.11.2011, coll. L.B. Rybalov and A.I. Bastrakov. Et–11–3 – Ethiopia, 9°04’N, 38°08’E, 2244 m a.s.l., 10 km to north from Ginchi city, Cholomu forest, moss and litter, 16.10.2011, coll. L.B. Rybalov and A.I. Bastrakov. Et–11–4 – Ethiopia, 9°04’N, 38°08’E, 2244 m a.s.l., 10 km to north from Ginchi city, Cholomu forest, moss on stones near river, 16.10.2011, coll. L.B. Rybalov and A.I. Bastrakov. Et–11–5 – Ethiopia, 8°48’N, 37°52’E, 3183 m a.s.l., Wenchi mountain, Erica arborea forming the canopy, 30.10.2011, collected by L.B. Rybalov and A.I. Bastrakov. Et–11–6 – Ethiopia, 11°47’N, 37°39’E, 1850 m a.s.l., 30 km to north-eastern from Bahir-Dar, Gurama river, Wenzaye place, semi deciduous tropical forest, moss, 25.11.2011, collected by L.B. Rybalov and A.I. Bastrakov. Et–11–7 – Ethiopia, 11°47’N, 37°39’E, 1850 m a.s.l., 30 km to north-eastern from Bahir-Dar, Gurama river, Wenzaye place, semi deciduous tropical forest, litter, 25.11.2011, collected by L.B. Rybalov and A.I. Bastrakov.

TAXONOMY AND METHODS

Specimens were mounted in lactic acid on temporary cavity slides for measurement and illustration, and than stored in ethanol. All body measurements are presented in micrometers. Body length was measured in lateral view, from the tip of the rostrum to the posterior edge of the ventral plate, to avoid discrepancies caused by different degrees of notogastral distortion. Notogastral width refers to the maximum width in dorsal aspect. Lengths of body setae were measured in lateral aspect. Formulae for leg setation are given in parentheses according to the sequence trochanter–femur–genu–tibia–tarsus (famulus included). Formulae for leg solenidia are given in square brackets according to the sequence genu–tibia–tarsus. The general morphological terminology used in the descriptions follows that presented by Norton and Behan-Pelletier (2009). List of collecting sites: Et–11–1 – Ethiopia, 9°06’N, 38°09’E, 2810 m a.s.l., Cholomu forest, top of mountain, Hagenia abissinica forming the canopy, moss, 6.11.2011, coll. L.B. Rybalov and A.I. Bastrakov.

Separatoppia concava sp. nov. (Figs. 1–4) Diagnosis. Body size 180–184 × 92–94. Transcostula concave. Sensilli of medium size, fusiform, smooth. Humeral processes present. Dorsal notogastral setae long. Genital setae of each genital plate not inserted in one row. Description. Measurements. Body length 184 (holotype), 180 (paratype); body width 94 (holotype), 92 (paratype). Integument. Body color light brownish. Body surface smooth, only lateral surfaces of prodorsum with numerous very small (less than 1) granules. Prodorsum (Figs. 1, 3). Costulae shorter, than half of prodorsum. Transcostula well-developed, concave medially. Interbothridial tubercles and postbothridial tubercles triangular. Two pairs of round mucle sigillae present between interbothridial tubercles. Rostral (ro, 16), lamellar (le, 10–12) and interlamellar (in, 4–6) setae setiform, thin, slightly barbed (barbs visible only under high magnification). Lamellar setae set on separate tubercles, other setae set on smaller tubercles. Sensilli (ss, 30–32) fusiform, smooth. Exobothridial

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2

1

4

3

Figures 1–4. Separatoppia concava sp. nov., adult: (1) dorsal view (only basal parts of legs shown); (2) ventral view, legs and gnathosoma not shown; (3) lateral view of prodorsum, legs not shown; (4) lateral view of notogaster. Scale bar 50 µm.

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setae (ex, 14–16) setiform, thin, slightly barbed, set on small tubercles. Notogaster (Figs. 1, 3, 4). Anterior margin convex. Humeral processes well-developed. Setae c absent, only represented by their poorly visible alveoli. Nine pairs notogastral setae (p1–p3 16, others 32–36) setiform, thin, slightly barbed. Lyrifissures short; ia located near humeral processes, im located antero-laterally to setae h3, ip located between p1 and p2. Lyrifissures ih and ips poorly visible in lateral view. Opisthonotal gland openings (gla) very small and poorly visible, located laterally to setae h3. Gnathosoma (Fig. 3). Typical for Separatoppia. Epimeral and lateral podosomal regions (Figs. 2, 3). A bridge-like formations absent. Epimeral setal formula: 3–1–3–3. All setae short (4–6), setiform, thin, smooth (excepting more long (12–14) and slightly barbed setae 3c). Discidia (dis) triangular. Anogenital region (Figs. 2, 4). Two pairs of anal (an1, an2, 4–6), three pairs of adanal (ad1–ad3, 6–8), one pair of aggenital (ag, 4–6) and six pairs of genital (4–6) setae setiform, thin, smooth. Genital setae of each plate not inserted in one row. Legs. Formulae of leg setation and solenidia: I (1–5–2–4–20) [1–2–2], II (1–5–2–4–13) [1–1–1], III (2–3–1–3–13) [1–1–0], IV (1–2–2–3–10) [0–1–0]; homology of setae and solenidia indicated in Table 1. Almost all setae slightly barbed. Setae p on tarsi II–IV absent. Material examined. Holotype (male) and paratype (male): Et–11–4. Type deposition. The holotype is deposited in the collection of the Zoological Institute of the Russian Academy of Sciences, St. Petersburg, Russia; paratype is in the personal collection of the first author. Etymology. The specific name “cancava” refers to the concave transcostula. Remarks. Separatoppia concava sp. nov. differs from the all species of the genus Separatoppia (S. acutipes (Warburton, 1912) from the Seyshelles Islands, S. africana (Evans, 1953) from Tanzania, S. gracilis Mahunka, 1997 from Kenya, S. horvathae Ermilov, Sidorchuk and Rybalov, 2011 from Ethiopia, S. robusta Mahunka, 1997 from Kenya) by the concave translamella and longer dorsal notogastral setae (versus straight translamella and shorter dorsal notogastral setae in the other species). Also distinctive characters of representatives of Separatoppia can be found in the identification key below.

Key to known species of Separatoppia 1. Sensillar head smooth . . . . . . . . . . . . . . . . . . . . . . . . 2 –. Sensillar head barbed . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Transcostula concave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Separatoppia concava sp. nov. –. Transcostula straight . . . . . . . . . . . . . . . . . . . . . . . . 3

3. Sensilli extremely long (nearly as long as prodorsum); smaller body length (166–199) . . . . . . . . . . . . . . . . . Separatoppia horvathae Ermilov, Sidorchuk et Rybalov, 2011 –. Sensilli not extremely long (shorter than prodorsum); larger body length (350) . . . . . . . . . . . . . . . . . . . . . . . . . Separatoppia acutipes (Warburton, 1912) 4. Sensilli with globular head; notogastral setae la inserted considerable above than lm . . . . . . . . . . . . . . . . . . . . . . . Separatoppia robusta Mahunka, 1997 –. Sensilli with elongated head; notogastral setae la and lm inserted on one transversal line . . . . . . . . . 5 5. Sensillar head with long spines; dorsosejugal region without tubercles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Separatoppia africana (Evans, 1953) –. Sensillar head with small spines; dorsosejugal region with tubercles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Separatoppia gracilis Mahunka, 1997

Ramusella (R Rectoppia) ginchiensis sp. nov. (Figs. 5–8) Diagnosis. Body size 205–213 × 90–94. Costulae and transcostula present, thin. Rostral setae thickened, barbed. Lamellar and interlamellar setae short and thin. Sensilli fusiform, with bifurcate cilia. Notogastral setae short, thin. Four pairs of genital setae present. Description. Measurements. Body length 213 (holotype), 205 (paratype); body width 94 (holotype), 90 (paratype). Integument. Body color light brownish. Body surface smooth. Prodorsum (Figs. 5, 7). Costulae and transcostula present, thin, but poorly visible. Rostral setae (20–24) thickened, barbed, set on tubercles. Apical half of rostral setae slightly divergent. Lamellar (6) and interlamellar (8–10) setae setiform, thin, slightly barbed (barbs visible only under high magnification). Sensilli (30–32) fusiform, ciliate. Cilia of sensillar head bifurcate. Interbothridial region with three pairs of poorly visible rounded muscle sigilla. Exobothridial setae (12) setiform, thin, slightly barbed (barbs visible only under high magnification), set on small tubercles. Notogaster (Figs. 5, 7, 8). Anterior border convex. Setae c absent, only represented by their poorly visible alveoli. Nine pairs notogastral setae (12–16) setiform, thin, slightly barbed (barbs visible only under high magnification). Lyrifissures short; ia located near setal alveoli c, im located laterally to setae lp, ip located anteriorly to p1 and p2. Lyrifissures ih and ips poorly visible. Opisthonotal gland openings small, located antero-laterally to setae h3. Gnathosoma. Typical for Multioppiinae.

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5

49

6

7

8

Figures 5–8. Ramusella (Rectoppia) ginchiensis sp. nov., adult: (5) dorsal view (legs not shown); (6) ventral view, legs and gnathosoma not shown; (7) lateral view of prodorsum, legs and gnathosoma not shown; (8) lateral view of notogaster. Scale bar 50 µm.

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Table 1. Leg setation and solenidia of Separatoppia concava sp. nov. (same data for Ramusella (Rectoppia) ginchiensis sp. nov.)

Leg I II III IV

Trochanter v' v' l', v' v'

d, d, d, d,

Femur

Genu

Tibia

Tarsus

(l), bv'', v'' (l), bv'', v'' l', ev' ev'

(l), σ (l), σ l', σ d, l'

(l), (v), φ1,φ2, (l), (v), φ l', (v), φ l', (v), φ

(ft), (tc), (it), (p), (u), (a), s, (pv), (v), (pl), e, ω1, ω2 (ft), (tc), (it), (u), (a), s, (pv), ω1, ω2* (ft), (tc), (it), (u), (a), s, (pv) ft'', (tc), (u), (a), s, (pv)

Roman letters refer to normal setae (e to famulus), Greek letters to solenidia. Single prime (') marks setae on anterior and double prime (") setae on posterior side of the given leg segment. Parentheses refer to a pair of setae. * Absent in Separatoppia concava sp. nov.

Epimeral and lateral podosomal regions (Figs. 6, 7). Epimeral setal formula: 3–1–3–3. All setae short (4–6), setiform, thin, smooth (excepting more long (12–14) and slightly barbed setae 3c). Anogenital region (Fig. 6, 8). Two pairs of anal (4), three pairs of adanal (4–6), one pair of aggenital (4) and four pairs of genital (4) setae setiform, thin, smooth. Legs. Formulae of leg setation and solenidia: I (1–5–2–4–20) [1–2–2], II (1–5–2–4–13) [1–1–1], III (2–3–1–3–13) [1–1–0], IV (1–2–2–3–10) [0–1–0]; homology of setae and solenidia indicated in Table 1. Almost all setae slightly barbed. Setae p on tarsi II–IV absent. Material examined. Holotype (female): Et–11–4; paratype (female): Et–11–1. Type deposition. The holotype is deposited in the collection of the Zoological Institute of the Russian Academy of Sciences, St. Petersburg, Russia; paratype is in the personal collection of the first author. Etymology. The specific name “ginchiensis” refers to the place origin of holotype (near Ginchi city). Remarks. Ramusella (Rectoppia) ginchiensis sp. nov. differs from the all species of the subgenus Ramusella (Rectoppia) (R. damavandica Akrami and Subías, 2008 from Iran, R. debililamellata (Kulijev, 1962) from Caucasus, R. eduardoi Arilli and Subías, 1996 from Spain, R. fasciata (Paoli, 1908) – semicosmopolitan species, R. incisiva (Balogh and Mahunka, 1980) from Cuba, R. mihelcici (Pérez-Íñigo, 1965) from the Palearcic and Neotropical regions; R. pararadiata Mahunka and Mahunka-Papp, 2007 from Kenya, R. radiata (Balogh, 1961) from the Ethiopian and Subantarctic regions; R. rhinina Subías and Mínguez, 1981 from Spain, R. strinatii (Mahunka, 1980) from the Mediterranean region) by the sensilli with bifurcate cilia (versus not bifurcate cilia in the other species). 1

Checklist of oribatid mites1

Trhypochthoniidae The family is recorded for the first time from Ethiopia.

Trhypochthonius tectorum (Berlese, 1896) The genus and species are recorded for the first time from Ethiopia; also, this species is recorded for the first time from the Ethiopian region. Distribution. Et–11–5.

Malaconothridae

Malaconothrus sp1 Distribution. Et–11–4.

Malaconothrus sp2 Distribution. Et–11–1.

Nothridae Nothrus crassisetus Mahunka, 1982 Distribution. Et–11–1, Et–11–2.

Except ptyctimous mites (presented to Dr. Wojciech Niedbala) and Damaeidae (presented to Dr. Ladislav Miko)

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Camisiidae

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Astegistidae

Camisia hamulifera Hammer, 1961

Furcoribula furcillata (Nordenskiöld)

The species is recorded for the first time from Ethiopia. Distribution. Et–11–1, Et–11–2, Et–11–5, Et–11–6.

The genus and species are recorded for the first time from Ethiopia and the Ethiopian region. Distribution. Et–11–3.

Heminothrus glaber Mahunka, 1984 Gustaviidae Distribution. Et–11–1, Et–11–2, Et–11–3, Et–11–4. Gustavia longiseta Mahunka, 1984 Hermanniellidae Hermanniella dubiosa Mahunka et Mahunka-Papp, 2007 The species is recorded for the first time from Ethiopia. Distribution. Et–11–2.

Plasmobatidae Plasmobates foveolatus Ermilov, Sidorchuk et Rybalov, 2011 Distribution. Et–11–3.

Distribution. Et–11–1, Et–11–2.

Liacaridae

Liacarus paratanzicus Ermilov, Rybalov et Kemal, 2011 Distribution. Et–11–5.

Liacarus shipitsyni Ermilov, Rybalov et Kemal, 2011 Distribution. Et–11–2.

Liacarus sp.

Licnodamaeidae

Distribution. Et–11–3. Pedrocortesella africana Pletzen, 1963 Distribution. Et–11–4.

Aleurodamaeidae

Aleurodamaeus africanus Mahunka, 1984 Distribution. Et–11–5.

Aleurodamaeus recenfesevpi Ermilov et Rybalov, 2012 Distribution. Et–11–1, Et–11–2.

Damaeolidae

Fosseremus sculpturatus Mahunka, 1982 Distribution. Et–11–1, Et–11–2, Et–11–4.

Heterobelbidae

Heterobelba spumosa Mahunka, 1983 Distribution. Et–11–3.

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Basilobelbidae

Basilobelba gigantea Ermilov, Sidorchuk et Rybalov, 2011 Distribution. Et–11–4.

Eremobelbidae

Eremobelba tuberculata Mahunka, 1982

Paroppia breviseta (Balogh, 1962) The species (as identified) is recorded for the first time from Ethiopia, however this species have been recorded earlier as not identified representative of Paroppia (Ermilov et al. 2012a – see Paroppia sp. in section Checklist of oribatid mites of Ethiopia). Distribution. Et–11–3.

Ramusella ginchiensis sp. nov. The genus is recorded for the first time from Ethiopia. Distribution. Et–11–1, Et–11–4.

Distribution. Et–11–1, Et–11–2, Et–11–4. Ramusella sp. Machadobelbidae

Machadobelba shtanchaevae Ermilov, Sidorchuk et Rybalov, 2010 Distribution. Et–11–1, Et–11–2, Et–11–3.

Distribution. Et–11–1.

Separatoppia gracilis Mahunka, 1997 Distribution. Et–11–5.

Separatoppia concava sp. nov. Oppiidae

Distribution. Et–11–4.

Arcoppia arborea Ermilov, Sidorchuk et Rybalov, 2010 Distribution. Et–11–1, Et–11–2, Et–11–3. Arcoppia rugosa (Mahunka, 1973) Distribution. Et–11–1. Lasiobelba kuehnelti (Csiszár, 1961) The genus and species are recorded for the first time from Ethiopia. Distribution. Et–11–1. Microppia minus (Paoli, 1908) The genus and species are recorded for the first time from Ethiopia. Distribution. Et–11–1.

Wallworkoppia vibrissa (Mahunka, 1983) The genus and species are recorded for the first time from Ethiopia. Distribution. Et–11–2. Machuellidae The family is recorded for the first time from Ethiopia.

Machuella ventrisetosa Hammer, 1961 The genus and species are recorded for the first time from Ethiopia. Distribution. Et–11–1, Et–11–4. Teratoppiidae Teratoppia ciliata Wallwork, 1961

Neoamerioppia polygonata (Mahunka, 1982) Distribution. Et–11–3, Et–11–4, Et–11–5.

The species is recorded for the first time from Ethiopia.

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Distribution. Et–11–2.

Teratoppia pectinata Balogh, 1961

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Austrocarabodes heterosetosus Ermilov, Sidorchuk et Rybalov, 2010 Distribution. Et–11–2, Et–11–3.

Distribution. Et–11–2. Tectocepheidae Suctobelbidae

Tectocepheus spinosus Mahunka, 1984

Suctobelbella spirochaeta Mahunka, 1983

Distribution. Et–11–1, Et–11–2, Et–11–3, Et–11–4, Et–11–5.

Distribution. Et–11–1, Et–11–2, Et–11–3. Micreremidae Suctobelbella penicillata (Balogh et Mahunka, 1966) The species is recorded for the first time from Ethiopia. Distribution. Et–11–1, Et–11–2.

Micreremus florens Mahunka, 1983 Distribution. Et–11–3.

Licneremaeidae Suctobelbella sp. Distribution. Et–11–1.

Licneremaeus costulatus Mahunka, 1982 Distribution. Et–11–1, Et–11–5.

Dampfiellidae Scutoverticidae Dampfiella setosa Mahunka, 1984 Scutovertex marginatus Mahunka, 1983 Distribution. Et–11–1, Et–11–2. The genus and species are recorded for the first time from Ethiopia. Distribution. Et–11–4. Tetracondylidae

Dolicheremaeus aethiopicus Ermilov, Sidorchuk and Rybalov, 2010

Phenopelopidae Eupelops torulosus (Koch, 1839)

Distribution. Et–11–1. Distribution. Et–11–1, Et–11–2, Et–11–3, Et–11–5.

Carabodidae

Austrocarabodes arboreus Ermilov, Sidorchuk et Rybalov, 2010 Distribution. Et–11–2, Et–11–3.

Achipteriidae Anachipteria sp. The genus is recorded for the first time from Ethiopia. Distribution. Et–11–3.

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Chamobatidae Ocesobates schatzi Ermilov, Sidorchuk et Rybalov, 2011 Distribution. Et–11–4.

Humerobatidae

Scheloribatidae

Perscheloribates crassisetosus Ermilov, Rybalov et Franke, 2011 Distribution. Et–11–2.

Perscheloribates luminosus (Hammer, 1961) Distribution. Et–11–4

Africoribates depilatus (Berlese, 1910) The species is recorded for the first time from Ethiopia. Distribution. Et–11–3.

Scheloribates acutirostrum Ermilov, Rybalov et Franke, 2011 Distribution. Et–11–3.

Africoribates ornatus Evans, 1953

Scheloribates aethiopicus Mahunka, 1982

The species is recorded for the first time from Ethiopia. Distribution. Et–11–3.

Distribution. Et–11–1, Et–11–2, Et–11–3, Et–11–4, Et–11–5. Scheloribates fimbriatus (Thor, 1930)

Humerobates africanus (Mahunka, 1984) Distribution. Et–11–1. Distribution. Et–11–1, Et–11–2, Et–11–5, Et–11–6, Et–11–7.

Zetomotrichidae

Zetomotrichus lacrimans Grandjean, 1934 Distribution. Et–11–5.

Oribatulidae

Scheloribates latipes (Koch, 1844) Distribution. Et–11–1, Et–11–2, Et–11–3, Et–11–4, Et–11–5, Et–11–6.

Similobates demetororum Mahunka, 1982 Distribution. Et–11–1, Et–11–2, Et–11–4.

Haplozetidae

Zygoribatula gracilata Grobler et Kok, 1993 The genus and species are recorded for the first time from Ethiopia Distribution. Et–11–1.

Peloribates consectionus Mahunka et Mahunka-Papp, 2008 The genus and species are recorded for the first time from Ethiopia. Distribution. Et–11–3.

Caloppiidae Vilhenabates sp. Zetorchella pedestris Berlese, 1916 Distribution. Et–11–1.

Distribution. Et–11–1

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Galumnidae

Acrogalumna machadoi Balogh, 1960 Distribution. Et–11–2, Et–11–4.

Allogalumna vojnitsi Mahunka, 1993 Distribution. Et–11–1, Et–11–2.

Pergalumna makarovae Ermilov, Sidorchuk et Rybalov, 2010 Distribution. Et–11–4.

Pilizetes anufrievi Ermilov, Sidorchuk et Rybalov, 2010 Distribution. Et–11–3.

Galumnellidae

Galumnella subareolata Mahunka, 1969 Distribution. Et–11–1, Et–11–2. Hence, our material contains 69 species, 53 genera and 38 families of oribatid mites; of these, 18 species (including two new species), 11 genera, and 2 families are recorded for the first time from Ethiopia. Also, the genus Furcoribula Balogh, 1943 and species Trhypochthonius tectorum and Furcoribula furcillata are recorded for the first time from the Ethiopian region.

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ACKNOWLEDGEMENTS We gratefully acknowledge Dr. Umukusum Ya. Shtanchaeva (Caspian Institute of Biological Resources, Makhachkala, Russia) and Prof. Dr. Luis S. Subías (Universidad Complutense de Madrid, Madrid, Spain) for consultations. We are grateful to A.I. Bastrakov (Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia) for his help with collecting Ethiopian oribatid mites. The work was performed within the framework of the Joint RussianEthiopian Biological Expedition financially supported by the Russian Academy of Sciences. We are grateful to our Project Coordinators Dr. Andrey Darkov and Ato Girma Yosef for management of the Expedition. We thank Dr. Kemal Ali, director of the Ambo Plant Protection Research Centre, EIAR, for supporting field studies and organizing laboratory operations.

REFERENCES Ermilov, S. G., Sidorchuk, E. A. and L. B. Rybalov. 2011. A new species of Separatoppia (Acari: Oribatida: Oppiidae) from Ethiopia. Systematic and Applied Acarology, 16(1): 21–26. Ermilov, S. G., Sidorchuk, E. A. and L. B. Rybalov. 2012a. Oribatid mites (Acari: Oribatida) of Ethiopia. Zootaxa, 3208: 27–40. Ermilov, S. G., Winchester, N., Lowman, M. M. and A. Wassie. 2012b. Two new species of oribatid mites (Acari: Oribatida) from Ethiopia, including a key to species of Pilobatella. Systematic and Applied Acarology, 17(3): 301–317. Mahunka, S. 1983. Oribatids of the eastern part of the Ethiopian Region (Acari). IV. Annales Historico-Naturales Musei Nationalis Hungarici, 75: 327–338. Norton, R. A. and V. M. Behan-Pelletier. 2009. Oribatida. Chapter 15. In: Krantz, G. W. and D. E. Walter (eds.). A manual of acarology. Texas Tech Univ. Press, Lubbock, pp. 430–564. Subías, L. S. 1980. Oppiidae del complejo “clavipectinatainsculpta”. Eos, 44: 281–313. Subías, L. S., and P. Balogh. 1989. Identification keys to the genera of Oppiidae Grandjean, 1951 (Acari: Oribatei). Acta Zoologica Hungarica, 35(3–4): 355–412.

Received: April 15, 2012 Accepted: January 28, 2013