Nueva especie de Metapyroppia Woolley, 1969 (Acari, Oribatida, Peloppiidae) del Nepal ; A new species of Metapyroppia Woolley, 1969 (Acari, Oribatida, Peloppiidae) from Nepal

A new species of oribatid mites of the family Peloppiidae, Metapyroppia gigantea n. sp., is described from Nepal. The genus Metapyroppia is recorded for the first time from the Oriental region. Metapyroppia gigantea n. sp. differs from the type species, Metapyroppia doratosa Woolley, 1969, by the absence of notogastral setae c2 and c3, presence of pointed rostrum and the adanal lyrifissures distanced from the anal plates. The morphology of gnathosoma and legs are presented in detail for the first time for any member of this genus. urn:lsid:zoobank.org:pub:EEE741F4-4C86-4625-B3FD-48E1DDA1D2D3


Introduction
Metapyroppia (Acari, Oribatida, Peloppiidae) is a monotypic oribatid mite genus that was proposed by Woolley (1969) with Metapyroppia doratosa Woolley, 1969 as type species.At present, this genus is known only from the Nearctic region.Hence, it is recorded for the first time in Nepal and the Oriental region.
The primary purpose of this paper is to describe and illustrate the second representative of Metapyroppia under the name M. gigantea n. sp.We present in detail the morphology of the gnathosoma and legs, the first such data for any member of this genus.
Generic characters of Metapyroppia were very briefly proposed by Woolley (1969) and summarized by J. Balogh & P. Balogh (1992).The secondary purpose of this paper is to present a new generic diagnosis.

Material and methods
All specimens of Metapyroppia gigantea n. sp. were studied in lactic acid, mounted in temporary cavity slides for the duration of the study, and then stored in 70% ethanol in vials.Body measurements are presented in micrometers.The body length was measured in lateral view, from the tip of the rostrum to the posterior edge of the ventral plate.Notogastral width refers to the maximum width in dorsal aspect.Lengths of body setae were measured in lateral aspect.Formula for leg setation is given in parentheses according to the sequence trochanter-femur-genu-tibia-tarsus (famulus included).Formula for leg solenidia is given in square brackets according to the sequence genu-tibiatarsus.Terminology used in this paper mostly follows that of Norton & Behan-Pelletier (2009).
The holotype and one paratype are deposited in the collection of the Senckenberg Institution, Frankfurt, Germany; two paratypes are deposited in the collection of the Siberian Zoological Museum, Novosibirsk, Russia; five paratypes are deposited in the collection of the Tyumen State University Museum of Zoology, Tyumen, Russia.Notogaster.Anterior margin medially weakly convex.Two pairs of notogastral setae (p 1 , p 2 , 49-65) setiform, barbed; other setae (с 1 , c 2 , c 3 , la, lm, lp, h 1 , h 2 , h 3 ) represented by alveoli.Opisthonotal gland openings (gla) small, located laterally to alveoli of notogastral setae h 3 .Lyrifissures ia, im, ih, ip and ips short, distinct.
Anogenital region.Six pairs of genital (g 1 -g 6 ), one pair of aggenital (ag), two pairs of anal (an 1 , an 2 ) and three pairs of adanal (ad 1 -ad 3 ) setae similar in length (41-53), setiform, straight, barbed.Genital plates shorter than anal plates; distance between genital and anal apertures is equal to half the length of a genital plate.Lyrifissures iad located in paraanal position, clearly removed from the anal plates.
ETYMOLOGY.The specific name "gigantea" is an adjective and refers to the large body size.Table 1.-Leg setation and solenidia of Metapyroppia gigantea n. sp.Roman letters refer to normal setae (e-famulus), Greek letters refer to solenidia.One apostrophe (′) marks setae on anterior and double apostrophe (′′) setae on posterior side of the given leg segment.Parentheses refer to a pair of setae.Tabla 1.-Quetotaxia de las patas y solenidios de Metapyroppia gigantea n. sp.Las letras romanas se refieren a las setas normales (e-famulus) y las griegas a los solenidios.El apóstrofo (′) señala las setas de la cara anterior el el doble apóstrofo (′′) las de la cara posterior de cada segmento de las patas.Los paréntesis indican pares de setas.Woolley, 1969) by the absence (represented by alveoli) of notogastral setae c 2 and c 3 (versus developed in M. doratosa), weakly pointed rostrum (versus widely rounded in M. doratosa) and the adanal lyrifissures removed from the anal plates (versus located close to the anal plates in M. doratosa).

Leg
Also, Metapyroppia gigantea n. sp. is similar morphologically to Pseudoceratoppia microsetosa Hammer, 1967 from New Zealand (see Hammer, 1967), but it differs from the latter by the presence of two pairs of posterior notogastral setae (versus three pairs in P. microsetosa) and complete sejugal apodeme (versus not complete in P. microsetosa).