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Redescription of Adults of Prasadiseius Cocytes (Prasad, 1970) (Acari: Otopheidomenidae) V

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Redescription of Adults of Prasadiseius Cocytes (Prasad, 1970) (Acari: Otopheidomenidae) V Redescription of adults of Prasadiseius cocytes (Prasad, 1970) (Acari: Otopheidomenidae) V. Prasad To cite this version: V. Prasad. Redescription of adults of Prasadiseius cocytes (Prasad, 1970) (Acari: Otopheidomenidae). Acarologia, Acarologia, 2011, 51 (2), pp.165-189. 10.1051/acarologia/20112002. hal-01600002 HAL Id: hal-01600002 https://hal.archives-ouvertes.fr/hal-01600002 Submitted on 2 Oct 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 51(2): 165–189 (2011) DOI: 10.1051/acarologia/20112002 REDESCRIPTION OF ADULTS OF PRASADISEIUS COCYTES (PRASAD, 1970) (ACARI: OTOPHEIDOMENIDAE) Vikram PRASAD (Received 28 February 2011; accepted 28 March 2011; published online 30 June 2011) 7247 Village Square Drive, West Bloomfield, MI 48322, USA. [email protected] ABSTRACT — Females and males of Prasadiseius cocytes (Prasad, 1970) (Acari: Otopheidomenidae) are redescribed based on live specimens collected during an expedition to Peru in August 2010. Several idiosomal structures, the dorsal and ventral setal pattern, and some details of gnathosoma are illustrated using photographs. Interspecific variation and presence of seta r5 are also discussed. KEYWORDS — Otopheidomeninae; taxonomy; chaetotaxy; description; setal pattern; idiosoma; intraspecific variation INTRODUCTION for the Otopheidomenidae and established a new genus Prasadiseius for the mites described from sph- Treat (1955) described the first otopheidomenid ingid moths. Zhang (1995) reviewed the system- mite, Otopheidomenis zalelestes, based on the spec- atics and biology of this family, and divided the imens that he found in the tympanum of moths family into 3 subfamilies: Otopheidomeninae Treat, (Lepidoptera: Noctuidae) collected in several states 1955; Treatiinae Wainstein, 1972; and Katydiseiinae of the USA, and erected the new family Otophei- Fain and Lukoschus, 1983. The subfamily Otophei- domenidae. Later, Prasad (1968-1987) described domeninae includes 3 genera: Noctuiseius Prasad, several new species from museum-preserved moths 1968; Otopheidomenis Treat, 1955; and Prasadiseius of Noctuidae and Sphingidae. These ectoparasitic Wainstein, 1972. Species of Prasadiseius infest sph- mites are considered closely related to the Phytosei- ingid moths only and species of Noctuiseius and idae, a family of predatory mites (Krantz and Khot, Otopheidomenis infest noctuid moths only. Prasad 1962; Evans, 1963; Chant, 1965; Chant and Yoshida- (1970a) described Otopheidomenis cocytes from sph- Shaul, 1992; Chant and McMurtry, 2007). It is in- ingid moths (Lepidoptera: Sphingidae) collected in teresting to note that some otopheidomenids have Loreto, Pucallpa, Peru in 1962 on Cocytius duponchel spermatheca similar to the phytoseiids while oth- (Poey). Later, it was transferred to Prasadiseius by ers do not. The otopheidomenids have the mov- Wainstein (1972). The genus is characterized by the able digit of chelicera greatly reduced or absent and, following features: (1) Dorsal shield entire with the with few exceptions (Katydiseius and Orthoptero- lateral margin partially incised, which divides the seius), have a terminal anal shield. shield into the podonotal and opisthonotal region; Wainstein (1972) proposed a new classification (2) Podonotal region with 8–9 pairs of dorsal se- http://www1.montpellier.inra.fr/CBGP/acarologia/ 165 ISSN 0044-586-X (print). ISSN 2107-7207 (electronic) Prasad V. tae; (3) j1 pair of setae absent; (4) Only one pair plate (at 45 – 47°C) and later rung with Glyptal, of ventral setae (JV1) present between the genital and labeled. The author identified the mites us- (in females) or sternogenital shield (in males) and ing an Accu-Scope 3000 phase-contrast microscope the anal shield; and (5) Parasitic on sphingid moths. (Accu-Scope, New York, USA) under 400x – 1000x This species was found in unusually heavy infesta- magnification. Photographs were taken using a tions on museum preserved specimens of Manduca mounted MicrometricsTM camera on the micro- rustica (Fab.) (Lepidoptera: Sphingidae) collected in scope and saved in Photoshop CS2. Measurements Ecuador (Prasad, 2011b). In addition, it was found were taken directly from the slide-mounted spec- to be widely distributed in Neotropical countries in- imens using the Micrometrics system. All mea- cluding Brazil, Ecuador and Peru in South America surements are given in micrometers (µm) with the and Guatemala in Central America (Prasad, 2011c). average of the measurements given in brackets. All of the photos of the females and males were It is interesting to note that the immature stages taken from specimens collected at the same collec- of most species of Otopheidomenidae have not tion (VP10-36), except for Figs. 21 and 22 (male), been described and the adults of these mites have which were taken from specimens collected from not been described in detail using the system of another collection (VP10-38). Each figure caption Lindquist and Evans (1965) adapted in Phytosei- has the magnification in which it was taken (200x idae by Rowell et al. (1978), Chant and Yoshida- vs. 400x), followed by the mite collection num- Shaul (1989, 1991, 1992), and Chant and McMurtry ber (VP10-36 or VP10-38) and the photo number. (2007). Prasad (1970a) did not include a detailed de- Voucher specimens will be deposited in the Natural scription of P. cocytes. His description was based on History Museum, Lima, Peru; Museum of Biodiver- specimens found on museum preserved moths that sity, The Ohio State University, 1315 Kinnear Road, had been collected many years before. Mites of this Columbus, OH 43212, USA; the US National Mu- genus had never been observed alive on live hawk seum, Washington, DC, USA; and in the author’s moths until August 12, 2010, when they were seen collection. The collection data of Prasadiseius co- by the author in large numbers on live moths col- cytes on different moths and locations on which this lected in Amazonian forest of Peru (online video, paper is based are as follows: (1) VP10-35, moth www.indirapublishinghouse.com). The mites were #265; (2) VP10-36, moth #275; (3) VP10-37, moth collected, processed and identified as Prasadiseius #280; (4) VP10-38, moth #281; and (5) VP10-39, moth cocytes, which is redescribed herein based on fresh #286; Morro Leguia, 2300m, 13o08’35.3", 71o35’08.1", material. A large series of photographs is used to il- Cusco Province, Peru, 13.VIII.2010, coll. Alberto lustrate the species that show many more details of D. Guanilo, Juan Grados Arauco, Vikram Prasad its morphology than in previous works, and uses and Indira Prasad, moth host – Xylophanes nabu- the current idiosomal chaetotaxy as proposed by chondonosor Oberthür, 1904, mites coll. V. Prasad. Prasad (2011a). FAMILY OTOPHEIDOMENIDAE TREAT, MATERIALS AND METHODS 1955 The details of the materials and methods are given Subfamily Otopheidomeninae Treat, 1955 in Prasad et al. (2011). After obtaining permit from the Government of Peru, live moths were col- Otopheidomeninae Treat, 1955: 556, type genus: lected during August 10-18, 2010 and observed. Otopheidomenis Treat, by original designation. Mites were collected in 70% ethanol and brought Genus Prasadiseius Wainstein, 1972 to the USA for preparation and identification by the author. Most of the mites were mounted di- Prasadiseius Wainstein, 1972: 453, type species: rectly in Hoyer’s medium. The slide specimens Otopheidomenis pholusis Prasad, by original designa- were dried for a week on a slide-warming hot tion. 166 Acarologia 51(2): 165–189 (2011) FIGURE 1: Prasadiseius cocytes (Female) — Anterior idiosoma showing peritremes (PE), setae r3 on the lateral integument , anterior dorsal shield (DS) showing entire podonotal shield (POS), anterior opisthonotal shield (OPS), left (LLINV) and right lateral invaginations (RLINV), muscle marks (MM), and setae j3, j4, j5, j6, z2,
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