Aceria megalops Flechtmann &amp; De &amp; Moraes 2002, n. sp.
Creators: name: Flechtmann, Carlos H. W.
name: De, Gilberto J.
name: Moraes
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Eriophyidae
Aceria
Aceria megalops

description: <i>Aceria megalops</i> n. sp. (Figs. 2, 3) DIAGNOSIS – With a pair of conspicuous ocellus­like structures on postero­lateral prodorsal shield, anterior shield lobe over gnathosoma; 5 ­rayed empodium; rear third of dorsoopisthosomal annuli somewhat wider and with suppressed microtubercles. REMARKS – A pair of ocellus­like structures has been described in approximately l. 5 % of the circa 800 species presently assigned to the genus <i>Aceria</i>. In this small group, similarly to <i>A. titirangiensis</i> Manson, 1984, <i>A. megalops</i> <b>n.sp.</b> has 5 ­rayed empodium and the caudal part of the opisthosoma is differentiated. In the former, the microtubercles fade away over the last 6 annuli, whereas in the latter they are suppressed in the last 15­18 dorsal annuli. FEMALE – (n = 6). Body elongate, vermiform, 136 (135­145) long, 45 (45­48) wide. Gnathosoma (17­18), curved down; basal setae 3 (2­3); antapical setae 5 (4­6); chelicerae 15 (13­15). Prodorsal shield 24 (23­26) long, 35 (35­41) wide; surface rough; median and admedian lines short, restricted to posterior third; with two longitudinal subellyptical protuberances extending from shield setiferous tubercles to base of frontal lobe. Tubercles 13 (13­18) apart, scapular setae (<i>sc</i>) 27 (26­30), directed backwards. Legs: legs I 20 (20­23); femur 6 (5­7), femoral seta (<i>bv</i>) 7 (7­8); genu 3 (3), genual seta (<i>l"</i>) 14 (14­18); tibia 4 (4­ 5), tibial seta (<i>l'</i>) 6 (5­8); tarsus 4 (4­6), solenidion (Z) 6 (5­7), empodium 5 (4­5), 5 ­ rayed, dorsal seta (<i>ft'</i>) 11 (10­11), lateral seta (<i>ft"</i>) 17 (15­17), unguinal seta (<i>u'</i>) 3 (3). Legs II 18 (18­20); femur 4 (4­7), <i>bv</i> (6­8); genu 2 (2), <i>l"</i> 8 (7­10); tibia 3 (3); tarsus 4 (4­5), solenidion (Z) 7 (6­7),empodium 5 (4­5), 5 ­rayed, <i>ft'</i> 7 (6­7), <i>ft"</i> 16 (15­17), <i>u'</i> 2 (2­3). Coxisternal area: coxae partially beset with short dashes and granules; coxal seta I (<i>1 b</i>) 9 (8­10), 7 (7­8) apart; coxal seta II (<i>1 a</i>) 15 (13­18), 6 (6­7) apart; coxal seta III (<i>2 a</i>) 25 (25­ 27), 18 (16­19) apart. Coxigenital area with 5 (4­5) annuli, microtuberculate. Genitalia 18 (18­19) wide, 13 (11­13) long; epigynium with 12 (12­14) longitudinal lines and basal granulated area; genital seta (<i>3 a</i>) 10 (10­11). Opisthosoma: annuli continuous dorsoventrally, with ellyptical­elongate microtubercles except rear third annuli which have no microtubercles dorsally. Lateral seta (<i>c 2</i>) 16 (14­16), on annulus 4 (4­5) counting from rear margin of genitalia; ventral seta I (<i>d</i>) 31 (31­42), 31 (29­33) apart, on annulus 15 (15­ 16); ventral seta II (<i>e</i>) 9 (8­10), 18 (17­19) apart, on annulus 31 (29­33); ventral seta III (<i>f</i>) 14 (14­17), 13 (13­15) apart, on annulus 48 (46­52) or on annulus 6 (6­7) from rear. Total ventral annuli 53 (51­57); total dorsal annuli 61 (61­63), 44 (44­47) microtuberculate plus 17 (15­18) with microtubercles suppressed. Caudal seta (<i>h 2</i>) 48 (42­58); accessory setae (<i>h 1</i>) in holotype one member of the pair 5, the other 11 long, in paratypes (5­8). MALE – (n = 4). Smaller than female. Body 114­128 long, 41­43 wide. <b>Gnathosoma</b> 16, basal seta 2, antapical seta 4, chelicerae 12­13. <b>Prodorsal shield</b> 23­24, 33 ­ 37 wide; <i>sc</i> 23­25, 13 ­ 16 apart. <b>Legs I</b> 19­21; femur 6, <i>bv</i> 5­7; genu 3, <i>l"</i> 14­16; tibia 3­4, <i>l'</i> 4­6; tarsus 5, solenidion (Z) 5­7, empodium 4, 5 ­rayed, <i>ft’</i> 7­10, <i>ft”</i> 13­15, <i>u'</i> 3. Legs II 18­19; femur 6­7, <i>bv</i> 5­6; genu 2, <i>l"</i> 7­10; tibia 2­3; tarsus 4, solenidion (Z) 6­7, empodium 4­5, 5 ­rayed, <i>ft'</i> 6­9, <i>ft"</i> 13­15, <i>u'</i> 2­3. <b>Coxisternal area</b>: <i>1 b</i> 6­9, 6 ­ 7 apart; <i>1a</i> 13 ­ 15, 5 ­ 6 apart; <i>2a</i> 22 ­ 25, 15 ­ 16 apart. Coxisternal annuli 4­5, microtuberculate. <b>Genitalia</b>: 13­14 wide, 9­12 long; granulated; <i>3a</i> 8 ­ 9. Opisthosoma: <i>c 2</i> 14­15, on annuli 2­4; <i>d</i> 30­37, 24 ­ 26 apart, on annuli 11­15; <i>e</i> 8­9, 12 ­ 16 apart, on annuli 24­30; <i>f</i> 13­16, 13 ­ 14 apart, on annuli 41­50 or annuli 6­7 from rear. Total ventral annuli 46­55; total dorsal annuli 53­58, of which 37­42 microtuberculate, 16 caudal with microtubercles suppressed. TYPE MATERIAL – Female holotype, 32 female and 7 male paratypes, from <i>Guapira opposita</i> (Vell.) Reitz (Nyctaginaceae), Cananéia, São Paulo, Brazil (24 o 53 ' 54 " S, 47 o 50 ' 14 " W), coll. G.J. Moraes, 14 February 2001, on 17 microscopic preparations in the collection of Departamento de Entomologia, Fitopatologia e Zoologia Agrícola, Universidade de São Paulo ­ ESALQ, Piracicaba, São Paulo, Brazil. RELATIONSHIP TO HOST ­ The mites were found in buds with irregular, densely clustered growth, with reduced leaves interspersed with globular, fleshy sprouts or wartlike structures. ETYMOLOGY – The specific designation <i>megalops</i> is derived from <i>mega</i>, Greek for large, and <i>ops</i>, Greek for eye, referring to the presence of ocellus­like structures on the prodorsal shield.
description: Published as part of <i>Flechtmann, Carlos H. W., De, Gilberto J. &amp; Moraes, 2002, Three new species of eriophyid mites (Acari: Eriophyidae) from the State of São Paulo, Brazil, pp. 1-8 in Zootaxa 23</i> on pages 3-7, DOI: 10.5281/zenodo.4620101
description: {"references": ["Manson, D. C. M. (1984) Eriophyinae (Arachnida: Acari: Eriophyoidea). Fauna of New Zealand, 5. Department of Science and Industrial Research, Wellington, New Zealand, 123 pp."]}