Acalitus simplex
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BibTeX: @article{Flechtmann2002Zootaxa47, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Flechtmann2002Zootaxa47">{{Citation |
Ordo: Prostigmata
Familia: Eriophyidae
Genus: Acalitus
Name
Acalitus simplex Flechtmann, Carlos H. W., 2002 – Wikispecies link – Pensoft Profile
- Acalitus simplex Flechtmann, Carlos H. W., 2002, Zootaxa 47: 10-12.
Diagnosis
DIAGNOSIS An Acalitus species with 4 rayed empodia; fused, granulated coxae I, smooth coxae II; coxisternal area with coarse granules not arranged in transverse lines; reduced prodorsal shield design: one pair of complete admedian lines and fragments of submedian line.
Description
FEMALE (n = 6). Body wormlike, 158 (145171), 53 (5357 wide. Gnathosoma projecting downwards; basal seta 3 (3); antapical seta absent; chelicerae 13 (13). Prodorsal shield anteriorly broadly rounded, 25 (2426), 29 (2831) wide; design reduced to one pair of complete admedian lines and partial submedian lines. Dorsal tubercles near rear shield margin, 19 (1821) apart, directing scapular seta (sc) divergently backwards; sc24 (2225). Legs lacking femur and tibia I setae. Leg I 24 (2225); femur 11 (911), femoral seta (bv) absent; femur with a few ventral lines; genu 3 (3), genual seta (l") 15 (1416); tibia 3 (3), tibial seta (l') absent; tarsus 6 (56), solenidion 7 (67), straight, not knobbed, empodium 5 (5), 4 rayed, dorsal seta (ft') 6 (59), lateral seta (ft") 20 (1820), unguinal seta u'4 (34). Leg II 22 (2122); femur 10 (810), bv9 (89); genu 3 (23), l"9 (810); tibia 3 (3); tarsus 5 (57), solenidion 7 (78), empodium 5 (46), 4 rayed, ft'5 (45), ft"18 (1823), u'4 (34). Coxae I fused, mesally granulated; coxal seta I (1 b) 7 (78), 9 (79) apart; coxal seta II (1 a) 18 (1622), 9 (911) apart; coxal seta III (2 a) 28 (2833), 19 (1920) apart. Coxisternal area with a few coarse granules. Genitalia20 (1922) wide, 12 (1216) long; epigynium with coarse granules; genital seta (3 a) 8 (810). Opisthosoma evenly arched in cross section; annuli continuous dorsoventrally. Lateral seta (c 2) 20 (1825), on annulus 3 (24) from genitalia rear margin. Ventral seta I (d) 44 (4346), 37 (3640) apart, on annulus 15 (1416); ventral seta II (e) 19 (1924), 21 (1923) apart, on annulus 29 (2629); ventral seta III (f) 13 (1315), 16 (1418) apart, on annulus 50 (4650) or 56 th from rear. Total ventral annuli 54 (5054), microtuberculate; total dorsal annuli 68 (6472), microtuberculate, caudal 9 (712) annuli with smaller microtubercles and fading to rear annuli. Caudal seta (h 2) 46 (4357); accessory seta (h 1) 2 (23).
MALE (n = 3). Similar to female, 141161, 48 wide. Gnathosoma: basal seta 3; antapical seta absent; chelicerae 1213. Prodorsal shield2024, 27 28 wide; sc1822, 16 19 apart. Legs: leg I 2023; femur 89, bv absent: genu 23, l"1114; tibia 3, l' absent; tarsus 45, solenidion 6, empodium 5, 4 rayed, ft'510, ft"1819, u'23. Leg II 1720; femur 78, bv79; genu 2, l"78; tibia 23; tarsus 45, solenidion 78, empodium 45, 4 rayed, ft'34, ft"1518, u'23. Coxae: 1 b57, 8 apart; 1a 11 13, 9 apart; 2a 23 25, 17 18 apart. Genitalia1316 wide, 811 long, granulated; 3a 6 7. Opisthosoma: c 2 1719, on annulus 3; d3538, 31 35 apart, on annulus 1214; e1216, 18 21 apart, on annulus 2426; f1213, 13 14 apart, on annulus 4146 or 5 th from rear. Total ventral annuli 4650; total dorsal annuli 5964, caudal 711 dorsal annuli with smaller microtubercles; h 2 3738; h 1 2,
Materials Examined
TYPE MATERIAL Female holotype, 19 female and 6 male paratypes, from Ruellia tuberosa L.(Acanthaceae), Clairange, Grand Bourg, Marie Galante / Guadeloupe, coll. J. Etienne, 4 Aug. 2001, on 7 microscopic preparations in the collection of Departamento de Entomologia, Fitopatologia e Zoologia Agrícola, Universidade de São Paulo, ESALQ, Piracicaba, São Paulo, Brazil. One paratype slide deposited in the New Zealand Arthropod Collection. RELATION TO HOST vagrant on lower leaf surface.
Etymology
ETYMOLOGY The specific designation, simplex, is from the Latin simplex meaning simplicity and refers to the reduced prodorsal shield design.
Discussion
REMARKS One species of Acalitus, A. ruelliae (Channabasavanna, 1966), described from Ruellia patula in India, was reported on R. tuberosa from Venezuela (Boczek & Nuzzaci, 1988) and from Guyana (Mohanasundaram & Muniappan, 1990). A. simplex n.sp. differs in being much larger (A. ruelliae115125 long); in presenting a granulated epigynium (with longitudinal scorings in A. ruellia) and in the anteriorly rounded prodorsal shield (triangular, acuminate in A. ruelliae).
Taxon Treatment
- Flechtmann, Carlos H. W.; Etienne, Jean; 2002: New records of plant mites (Acari, Acaridae, Tetranychidae) from Guadeloupe and Marie Galante with descriptions of five new eriophyid species, Zootaxa 47: 10-12. doi
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