Cenaca decorata Flechtmann & Etienne, 2002, n.sp.
Creators: name: Flechtmann, Carlos H. W.
name: Etienne, Jean
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Eriophyidae
Cenaca
Cenaca decorata

description: Cenaca decorata n.sp. (Fig. 5)
DIAGNOSIS ­ Four­rayed empodia; caudal dorsal opisthosomal annuli with minute microtubercles on rear margin; prodorsal shield with complete median
and admedian lines.
FEMALE ­ (n = 3). Wormlike, 146 (156­185), 49 (53) wide. Gnathosoma projecting downwards, 16 (17); basal seta 3 (2­3); antapical seta missing; chelicerae 13 (12­15). Prodorsal shield broad, anteriorly rounded, 19 (18­19); design consisting of complete median and admedian lines, one pair of partial submedian lines and a transverse, arched, posterior line; no anterior lobe. Dorsal tubercles near rear shield margin, 15 (14­18) apart, directing scapular setae (sc) divergently to rear; seta 24 (22­25). Legs lacking femur I and tibia I seta. Leg I 20 (21­23); femur 8 (9­10), femoral seta (bv) absent; genu 2 (3), genual seta (l") 13 (14­15); tibia 4 (4), tibial seta (l') absent; tarsus 6 (5), solenidion 7 (6), empodium 5, 4­ rayed, dorsal seta (ft') 11 (10), lateral seta (ft") 15 (17­18), unguinal seta (u') 3 (3). Leg II 18 (19­22); femur 9 (7), bv 8 (7­9); genu 2 (2), l" 10 (9­12); tibia 2 (3); tarsus 4 (4­5), solenidion 8 (7), empodium 6 (5), 4­rayed, ft' 3 (3), ft" 18 (19­20), u' 2 (2). Coxae I fused, with a very thin sternal line. Coxal seta I (1b) missing. Coxal seta II (1a) 16 (14­15), 8 (7) apart; coxal seta III (2a) 23 (28­31), 16 (13­18) apart. Coxisternal area with coarse granules. Genitalia 17 (16­19) wide, 10 (9­11) long; epigynium distally smooth, basally with coarse granules, partly in transverse irregular lines. Genital seta (3a) 5 (7­8). Opisthosoma evenly arched in cross section; annuli continuous dorsoventrally. Lateral seta (c2) 17 (14­16), on annulus 3 (2) from genitalia rear margin. Ventral seta I (d) 33 (31­42), 30 (29­31) apart, on annulus 14 (13­16); ventral seta II (e) 28 (31­37), 19 (17­18) apart, on annulus 29 (32); ventral seta III (f) 13 (14­15), 13 (12­14) apart, on annulus 49 (53­55) or 5th from rear. Total ventral annuli 53 (57­59), microtuberculate. Total dorsal annuli 67 (70­71), with prominent, oval microtubercles except on caudal 8 (9­10) annuli, whose microtubercles are minute. Caudal seta (h2) 58 (51); accessory seta (h1) 2 (2).
MALE ­ (n =1). Smaller than female, 101, 37 wide. Gnathosoma 13; basal seta 2; apical seta missing; chelicerae 11. Prodorsal shield 18, 24 wide. Sc 17, 13 apart. Leg I 19; femur 7, bv missing; genu 2, l" 12; tibia 2, l' missing; tarsus 4, solenidion 6, empodium 4, 4­rayed, ft' 7, ft" 11, u' 2. Leg II 17; femur 7, bv 6; genu 2, l" 7; tibia 2; tarsus 4, solenidion 8, empodium 4, 4­rayed, ft' 3, ft" 13, u' 2. Coxal seta II (1a) 11, 7 apart; 2a 18, 14 apart. Genitalia 15 wide, 5 long; 3a 6. Opisthosoma: c2 14, on annulus 2; d 28, 26 apart, on annulus 10; e 19, 16 apart, on annulus 23; f 11, 11 apart, on annulus 41 or 5th from rear. Total ventral annuli 45, microtuberculate; total dorsal annuli 56, microtuberculate, as in female. Caudal seta (h2) 30; h1 2.
TYPE MATERIAL ­ Holotype female, four female, one male paratypes, from Beurreria succulenta (Boraginaceae), Bouillante, Pigeon, Guadeloupe, coll. J. Etienne, 2 Sept. 2001, on two microscopic preparations in the collection of Departamento de Entomologia, Fitopatologia e Zoologia Agrícola, Universidade de São Paulo, ESALQ, Piracicaba, São Paulo, Brazil.
RELATION TO HOST ­ vagrant on lower leaf surface.
ETYMOLOGY ­ The specific designation, decorata, is derived from the Latin decoro, ­atus, meaning ornamented, and refers to the elaborate prodorsal shield design.
REMARKS ­ C. decorata, the third known species in the genus, differs from the type species, C. syzygioidis Keifer, 1972 and from C. dorestei Boczek & Oleczek, 1987 in presenting prodorsal shield design (absent in the type species; only a few broken submedian lines in C. dorestei) and, in the caudal dorsal opisthosomal annuli with minute microtubercles (caudal dorsal annuli smooth in C. syzygioidis, dorsal annuli evenly beset with elongate, large microtubercles in C. dorestei). In the new species the empodia are 4­rayed as in the type species, but, are 5­rayed in C. dorestei.
description: Published as part of 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, pp. 1-16 in Zootaxa 47 on pages 12-13, DOI: 10.5281/zenodo.155892