taxonID	type	description	language	source
03BE87E14360FFDF7A84FD35FAA4881C.taxon	description	The three European genera of Labidostomatoidea (Trombidiformes, supercohort Labidostomatides sensu Krantz and Walter, 2009) have a large distribution (Europe, North America and Asia): the cosmopolitan Labidostoma Kramer, 1879 (syn. Nicoletiella), or the Holarctic genera Eunicolina Berlese, 1911 (syn. Grandjeanellina) and Akrostomma Robaux, 1977 (Table 1). Because Labidostomatidae Oudemans 1904 (i) have conserved a primitive morphology, (ii) are distributed all over the continents, and (iii) the distinctive variations in their morphology are easily ob- servable, labidostomatid mites are currently considered forming (i) a basal branch among the Prostigmata, (ii) a model for biogeographic studies, (iii) a likely example of evolutive radiations (Grandjean, 1941; Bertrand, 1990 a). Labidostomatidae is the unique family that belongs to Labidostomatina, one of four infraorders forming the suborder Prostigmata (classification according to Zhang et al., 2011). Labidostomatidae are one of the most primitive groups of Actinotrichid mites. An unusual and homogeneous pattern, with sclerotized cuticle forming ventral and dorsal shields characterized the species; this sclerotization may have played a role in the conservation of characters kept also by the most primitive groups of trombidiform mites (Sphaerolichina, Eupodina).	en	Bertrand, M., Bagheri, M., Akbari, A., Yazdanian, M., Irani-Nejad, K. H., Mohajer, S. S., Saboori, A. (2012): A New Iranian Species Of The Subgenus Labidostoma (Prostigmata: Labidostomatidae), With New Biogeographic Data On The Integrum Species Group. Acarologia 52 (3): 233-245, DOI: 10.1051/acarologia/20122042, URL: http://dx.doi.org/10.1051/acarologia/20122042
03BE87E14360FFDE793FFC0CFF1E8D0C.taxon	description	Berlese (1911) described the species type Labidostoma integrum from Umbria (Italy) in a brief diagnosis (less than 40 words): " Flavidum, ovale; angulis non in cornua productis; mandibulorum digito mobili dentibus (in medio margine dentario) numero novem, intersese statura subequalibus, sat magnis; digiti fixi ramo apicali superno sat inferiorem securiformem superanti. Tuberculus mandibulae parvulus. " Berlese did not provide any details concerning the exceptional characteristic of this species: the line of dorso-lateral pores that distorts the alveolar arrangement. Fortunately, Grandjean (1942, a, b) examined some specimens and provided illustrations. He noted that Algerian and French specimens differed by: • ornamentation of the dorsal shield, • the number of teeth on the mobile cheliceral digit, • the organization of the terminal and subterminal teeth of the fixed digit. Feider and Vasiliu (1970) compared the morphology of Romanian specimens of L. caucasicum (Reck 1940) and L. integrum to clarify their identity. Until now, amongst the species belonging to the subgenus Labidostoma, only two shared the unusual arrangement of a dorso-lateral line of pores: i. e. integrum and caucasicum. From 1879 to 1969, several authors described newly discovered species, named them in the genus Labidostoma (syn. Nicoletiella Kramer 1879). However, providing a different perspective from previous authors, Feider and Vasiliu (1969) and some years later, Bertrand (1990) considered that it is preferable to subdivide the genus into different subgenera. The subgenus Labidostoma, (comprising the species closely allied to L. integrum) and the subgenus Nicoletiella, (comprising the species closely allied to L. luteum) must keep separated from each other at least as subgenera if not as different genera.	en	Bertrand, M., Bagheri, M., Akbari, A., Yazdanian, M., Irani-Nejad, K. H., Mohajer, S. S., Saboori, A. (2012): A New Iranian Species Of The Subgenus Labidostoma (Prostigmata: Labidostomatidae), With New Biogeographic Data On The Integrum Species Group. Acarologia 52 (3): 233-245, DOI: 10.1051/acarologia/20122042, URL: http://dx.doi.org/10.1051/acarologia/20122042
03BE87E14361FFDE7AC8F91AFAA7881A.taxon	description	The successive descriptions in the genus Labidostoma filled it gradually with species that could not be assigned to any other labidostomid genus (Eunicolina, Akrostomma or Sellnickiella). The subgenus Labidostoma is now overloaded with those species that share a regressive famulus on tarsi I: the Asian L. (L.) nepalense Feider and Vasiliu, 1968, some South African species (Bertrand and Theron, 1990) and some species from the Philippines (Bertrand and Corpus Raros, 1997). As a result, the subgenus Labidostoma (Labidostoma) looks like a ragbag. Notwithstanding, the recent discovery, in Iran, of a third species sharing the major distinctive character of the L. (L.) integrum and L. (L.) caucasicum sheds light on some uncertainties and attests that some " hard nucleus " of closely allied species exists. The new Iranian species offers the opportunity to reconsider these heterogeneities. It was of interest to confront the Iranian individuals to specimens collected from Western and Eastern parts of the distribution area of the closest species L. (L.) integrum.	en	Bertrand, M., Bagheri, M., Akbari, A., Yazdanian, M., Irani-Nejad, K. H., Mohajer, S. S., Saboori, A. (2012): A New Iranian Species Of The Subgenus Labidostoma (Prostigmata: Labidostomatidae), With New Biogeographic Data On The Integrum Species Group. Acarologia 52 (3): 233-245, DOI: 10.1051/acarologia/20122042, URL: http://dx.doi.org/10.1051/acarologia/20122042
03BE87E14367FFD57AECFA5BFDF68889.taxon	description	Female — Dorsal shield 570 – 670 µm long, 260 – 302 wide. Male similar. Dorsal shield — (Figures 1 A, 1 C, 1 D and 1 E) Body elongated, covered by a reticular pattern even in the central zone. As in many species the polygons become less regular and less distinct and increasingly granulate dorsally as well as in the posterior part. Two pairs of long trichobothria; bop longest. Aspidosomal setae: ge> ga = gr <gm, all simple. Usual paired dorsal and lateral setae, all simple, posterior setae (dd, de, and le) longest. Dorsal pores visible around bop and grouped in area posteriad to setae gm and latero-posterior to db. Anterior eye present, 23 µm in diameter, in subterminal position. One pair of large lateral pustules (diameter 34 µm) each close to the small lateral eyes. Lateral lyriform organ present, extending over three to five cuticular cells. The pustule cuts the lateral line of pores that are connected by a sclerotized " ridge " (figures 3 A and 3 B). The posterior part of this ridge (arOEte of Grandjean, op. cit.) follows the margin on the dorsal shield backward and continues from the right pustule to the symmetric pustule. From the oculopustular zone, the anterior branches are inclined toward the axis of the body and are long enough to reach the aspidosomal setae ge. In some individuals the anterior ridge ends below the lateral ocular lenses, the posterior branch ends at the level of the pustule and sometimes tends to curve below this organ (figure 3 B). Ventral shield — (figure 1 B) Entirely covered by ornamentation. Epimeral setae short (( 18 - 24) - (14) - (9) - (12 )). Usual coxal pore on epimera I. Fourteen pores on cuticle behind the fourth epimeral plate and a transverse line of eight setae (the number of pores differs between integrum and caucasicum with 10 and 12 pores respectively). Anogenital ring surrounding anal and genital shields in the female, distinct genital and anal rings in the male (figures 2 C and 2 D). Infracapitulum — The labrum (dorsal lip) is shorter than the lateral lips, which are rather large, each with a minute seta. Setae ma and mb, plus two additional setae near insertion of the palp. Palps with usual chaetotaxy, dorsal solenidion. The presence of additional setae was noted on Grandjean’s drawings for integrum; Feider and Vasiliu recorded two setae in Romanian specimens of L. integrum, whereas they have drawn three setae in caucasicum. Such additional setae are absent on Kazakhstani specimens of integrum (fig. 5 B). Chelicerae — (figures 3 C and 3 D) The chelicerae differ essentially from those of the other species of the group by the shape of the paraxial tooth, which is less developed and not smooth. It differs clearly from the French (figure 6 A), Algerian (figures 6 B and 6 C), Romanian (figure 6 E) and Kazakhstani (figure 5 A) specimens of L. integrum and from L. caucasicum (figure 6 D) by the teeth and denticles of the mobile digit. Note that the chelicerae of French specimens of L. integrum show an inferior tooth very similar to the drawings of Feider and Vasiliu (1970), but differ from the integrum ’ s chelicerae drawn by Grandjean (Figures 6 A- 6 D). It may be supposed that Grandjean chose North African specimens because they were of a bigger size than French ones (Grandjean, 1942 b). Legs — Among the species-group, the first pair of legs is remarkable for its lengthened tibia, genu and mesofemur. L. intermedia n. sp. exhibits a relatively short genu, subequal in length to the mesofemur, the tibia being the longest article (ratio genual / tibia = 0.7 vs. 0.8 in L. integrum) (Table 2). Simple setae on leg I. Tarsi of PII, PIII and PIV with subterminal ventral setae plumose (= " scobales " sensu Feider and Vasiliu), other setae simple. Tarsus I with usual solenidia ω 1 and ω 2, and spine-like famulus, tarsal eupathidia present.	en	Bertrand, M., Bagheri, M., Akbari, A., Yazdanian, M., Irani-Nejad, K. H., Mohajer, S. S., Saboori, A. (2012): A New Iranian Species Of The Subgenus Labidostoma (Prostigmata: Labidostomatidae), With New Biogeographic Data On The Integrum Species Group. Acarologia 52 (3): 233-245, DOI: 10.1051/acarologia/20122042, URL: http://dx.doi.org/10.1051/acarologia/20122042
