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Redefinition of the Genus Scarabacariphis Masan and New Morphological Data for S Redefinition of the genus Scarabacariphis Masan and new morphological data for S. geotrupes comb. nov. (Ishikawa) (Acari: Mesostigmata: Eviphididae) S. Kazemi To cite this version: S. Kazemi. Redefinition of the genus Scarabacariphis Masan and new morphological data forS. geotrupes comb. nov. (Ishikawa) (Acari: Mesostigmata: Eviphididae). Acarologia, Acarologia, 2016, 56 (1), pp.129-135. 10.1051/acarologia/20162192. hal-01547014 HAL Id: hal-01547014 https://hal.archives-ouvertes.fr/hal-01547014 Submitted on 26 Jun 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives| 4.0 International License ACAROLOGIA A quarterly journal of acarology, since 1959 Publishing on all aspects of the Acari All information: http://www1.montpellier.inra.fr/CBGP/acarologia/ [email protected] Acarologia is proudly non-profit, with no page charges and free open access Please help us maintain this system by encouraging your institutes to subscribe to the print version of the journal and by sending us your high quality research on the Acari. Subscriptions: Year 2017 (Volume 57): 380 € http://www1.montpellier.inra.fr/CBGP/acarologia/subscribe.php Previous volumes (2010-2015): 250 € / year (4 issues) Acarologia, CBGP, CS 30016, 34988 MONTFERRIER-sur-LEZ Cedex, France The digitalization of Acarologia papers prior to 2000 was supported by Agropolis Fondation under the reference ID 1500-024 through the « Investissements d’avenir » programme (Labex Agro: ANR-10-LABX-0001-01) Acarologia is under free license and distributed under the terms of the Creative Commons-BY-NC-ND which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited. Acarologia 56(1): 129–135 (2016) DOI: 10.1051/acarologia/20162192 Redefinition of the genus Scarabacariphis Mašán and new morphological data for S. geotrupes comb. nov. (Ishikawa) (Acari: Mesostigmata: Eviphididae) Shahrooz KAZEMI (Received 23 October 2015; accepted 23 December 2015; published online 04 March 2016) Department of Biodiversity, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology. [email protected] ABSTRACT — Herein, Alliphis geotrupes Ishikawa, 1979 is transferred to the genus Scarabacariphis Mašán, 1994 because of its free peritrematal shield (i.e. separated from the dorsal shield). The genus Scarabacariphis is redefined, and a key to the species of Scarabacariphis is provided, as well as additional morphological information for Scarabacariphis geotrupes comb. nov. KEYWORDS — Eviphidoidea; Alliphis; new combination; Scarabaeoidea INTRODUCTION the species, its peritrematal shields are less devel- oped and free from the dorsal shield anteriorly. Predatory mesostigmatic mites of the family These character states define the genus Scarabaca- Eviphididae include about 130 described species riphis. The purposes of this paper are to trans- under 20 genera that occur in soil, litter, and decom- fer Alliphis geotrupes to Scarabacariphis, present new posing organic materials like vertebrate dung, car- morphological information for the species, rede- rion and nest of birds and mammals (Berlese 1910; fine Scarabacariphis and prepare a key to the current Evans and Till 1979; Halliday 2008, 2010; Karg 1963, members of the genus. 1976, 1993; Kazemi and Rajaei 2013; Kazemi et al. 2008; Mašán 1994; Mašán and Halliday 2009, 2010; Ryke and Meyer 1957). Before publishing this pa- MATERIALS AND METHODS per, the genus Scarabacariphis Mašán, 1994 was a monotypic genus known only from Slovakia and The mite specimens used for this study were Armenia (Arutunian, 1992; Mašán, 1994; Mašán slides of one female paratype specimen of Al- and Halliday, 2010). liphis geotrupes ex Geotrupes laevistriatus collected in Ishikawa (1979) described Alliphis geotrupes Japan (Ishikawa 1979), and also three paratypes of based on specimens associated with Geotrupes lae- Scarabacariphis ankavani (Arutunian, 1992) ex On- vistriatus (Matschulsky) collected in Japan. Based thophagus fracticornis (Preyssler) collected in Slo- on the original description and illustrations of vakia. http://www1.montpellier.inra.fr/CBGP/acarologia/ 129 ISSN 0044-586-X (print). ISSN 2107-7207 (electronic) Kazemi S. Morphological observations, measurements and setae, with 22 pairs of pore-like structures, includ- illustrations were made using a compound micro- ing six pairs of gland pores (gd1-2, gd4, gd6, gd8-9). scope equipped with differential interference con- Weakly sclerotized presternal platelets present or trast and phase contrast optical systems, and a absent. Sternal shield entire, almost as long as wide, drawing tube. Measurements were made in mi- with three pairs of simple narrow setae and two crometres (µm). Some measurements have been pairs of poroids, iv1 slit-like, oriented obliquely, given in range when left and right side characters of iv2 ovoid. Endopodal platelets between coxae II-III the body differed in size. Dorsal and sternal shield completely fused to sternal shield; endopodals be- lengths and widths were respectively taken from tween coxae III-IV not enlarged, free. Metasternal the anterior to posterior shield margins along the setae and poroids iv3 on soft integument or situated midline, and from the lateral margins at the broad- on minute metasternal platelets. Epigynal shield in- est level between setae j6-J1 and at the level of se- conspicuously reticulated, anterior hyaline margin tae st2. The length of the epigynal shield was taken of shield rounded, setae st5 on lateral marginal of from the anterior margin of the hyaline extension to shield or in soft integument; postgenital platelets the posterior margin of the shield along the midline; absent. Anal shield subtriangular or pear-shaped, the shield width was taken at the level of setae st5. bearing simple and slender subequal circumanal se- Anal shield length and width were measured along tae. Exopodal platelets between coxae III-IV al- the midline from the anterior to posterior margin, ways present, those between coxae I-III present or including the cribrum, and at the broadest point, re- absent; parapodal platelets narrow, free. Metapo- spectively. Leg lengths were taken from the base of dal platelets small, narrow. Peritrematal shields the coxa to the apex of the tarsus, without the am- finely developed along peritremes, free, post stig- bulacrum (stalk, claws and pulvillus). The length of matic section tapered, not extending beyond poste- the second cheliceral segment was measured from rior level of coxae IV, with three pairs of poroids and the base to the apex of the fixed digit, and the width two pairs of gland pores. Peritremes extending to at the broadest point. The length of the fixed che- anterior level of coxae I to II. Dorsolateral and ven- liceral digit was taken from the dorsal poroid to the tral integument simply striated, in female with 10 apex, and that of the movable digit from the base to pairs of simple setae (excluding st5), in male with apex. eight setae. Sternogenital shield of male well sep- The notation for idiosomal setae follows arated from anal shield. Deutosternal groove with Lindquist & Evans (1965) adapted by Mašán and five rows of denticles, each with 2-13 teeth. Mov- Halliday (2010); idiosomal pore-like structures, i.e. able digit of female chelicera with one large tooth. gland pores and poroids, follows mostly Athias- Palpgenu with six setae. Palptarsus with one sickle- Henriot (1971, 1975), adapted by Kazemi et al. like seta and two-tined apotele. Epistome with long (2014). median projection, and wing-like lateral elements. Complement of leg chaetotaxy as: coxae 2-2-2-1; trochanter 6-5-5-5; femora 13-11-6-6; genua 11-11- Genus Scarabacariphis Mašán, 1994 8-7; tibiae 11-10-7-7. Male legs without spurs. Scarabacariphis Mašán, 1994: 6. Notes on the genus — Ishikawa (1979) described Scarabacariphis grandisternalis Type species an eviphidid species with most typical characters Alliphis ankavani Mašán, 1994 (= Arutunian, 1992), of the genus Alliphis, A. geotrupes, but he illustrated by original designation. its peritrematal shields free from the dorsal shield. Diagnosis — Idiosoma completely or partly cov- I confirmed this observation in the paratype spec- ered by dorsal shield. Dorsal shield almost flat- imen. The only genera of Eviphididae that bear tened, sub-oval, entire, finely reticulated over en- free peritrematal shields from the dorsal shield are tire surface, free from peritrematal shields, usually Rafaphis Skorupski & Błaszak, 1997 and Scarabaca- bearing 29-30 pairs of mostly needle-like and short riphis, so the placement of A. geotrupes is not ac- 130 Acarologia 56(1): 129–135 (2016) ceptable. Comparing these genera with free per- Scarabacariphis geotrupes comb. nov. itrematal shields, Raphafis is unrelated to A. geotru- (Ishikawa, 1979) pes because of its unique character states for the Figures 1,2 Eviphididae, such as the dorsal shield extending
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