Catachela machaerii Keifer 1969
- Dataset
- New genus and seven new species of Brazilian eriophyoid mites and redescription of Catachela machaerii Keifer (Acari: Prostigmata: Eriophyoidea)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Prostigmata
- family
- Eriophyidae
- genus
- Catachela
- species
- Catachela machaerii
description
The main difference between Keifer's description and the present material is in the length of several setae, which may be due to better optical equipment. The " redescription " below is intended to integrate Keifer's description. FEMALE (n = 6) — Body 183 – 251, 72 – 77 wide; colour in life yellowishwhite. Gnathosoma projecting down; antapical seta not found in 30 specimens examined; basal seta 2 – 4; chelicera 11 – 14. Prodorsal shield semicircular, with a very short, broad frontal lobe; shield 185 – 251, 72 – 77 wide. Median line complete; admedian lines complete, curving out at rear; three transverse lines. A submedian line from admedian at nearly one fourth and a submedian line from admedian at nearly one half, both curving out and back towards dorsal tubercles. Shield laterally with short dashes. Shield tubercles on rear margin, 30 – 33 apart, directing scapular seta (sc) divergently to rear; sc 20 – 22. Legs with tibial I and femoral I setae missing. Leg I 26 – 31; femur 9 – 12, femoral seta (bv) missing; genu 3 – 4, genual seta (l ") 28 (28 – 32); tibia 3 – 4, tibial seta (l') missing; tarsus 6 – 7, dorsal seta (ft') 16 – 19, lateral seta (ft ") 23 – 26, unguinal seta (u') angulated, 8 – 9, solenidion displaced downward below empodium, nearly straight and pointed, 5 – 6, empodium 8 – 11, 8 – 9 rayed. Leg II 26 – 28; femur 10 – 11, bv 11 – 15; genu 3 – 4, l " 9 – 11; tibia 3 – 4; tarsus 6, ft' 9 – 11, ft " 25 – 28, u' straight, 5 – 8, solenidion in normal dorsal position, 12 – 14, curved, empodium 9 – 10, 8 – 9 rayed. Coxigenital area: coxae I fused; coxae I and II granulated. Coxal seta I (1 b) 10 – 12, 14 – 15 apart; coxal seta II (1 a) 16 – 26, 9 – 11 apart; coxal seta III (2 a) 36 – 42, 24 – 27 apart. Genitalia 21 – 23 wide, 13 – 18 long; genital seta (3 a) 22 – 36. Epigynum basally granulated and with 1 – 2 arched transverse lines parallel to and ahead of rear margin. Opisthosoma evenly arched in transverse section. Lateral seta (c 2) 46 – 55, on annulus 6 – 8 counting from genitalia rear margin. Ventral seta I (d) 56 – 69, 40 – 44 apart, on annulus 19 – 21; ventral seta II (e) 53 – 58, 26 – 31 apart, on annulus 40 – 43; ventral seta III (f) 29 – 32, 18 – 22 apart, on annulus 63 – 68 or 7 th from rear. Total ventral annuli 69 – 74, with beadlike microtubercles; total dorsal annuli 66 – 78, with elongate microtubercles produced into an acute angle to rear overlapping ring rear margin; microtubercles fading on caudal annuli. Caudal seta (h 2) 77 – 97; accessory seta (h 1) minute. MALE (n = 2) — Smaller than female, 188 – 205, 66 – 69 wide. Gnathosoma: antapical seta not seen (in 5 specimens examined); basal seta 2 – 3; chelicera 12 – 13. Prodorsal shield 32 – 36, 55 – 57 wide; sc 17 – 18, 31 – 32 apart. Legs: leg I 26; femur 11 – 12, bv missing; genu 3, l " 28 – 31; tibia 3, l' missing; tarsus 6, ft' 18 – 19, ft " 25 – 26, u' 7, solenidion 5, empodium 9 – 10, 8 – 10 rayed. Leg II 25; femur 11, bv 10 – 11; genu 3, l " 9 – 10; tibia 2 – 3; tarsus 6, ft' 8 – 10, ft " 24 – 26, u' 6 – 7, solenidion 11 – 12, empodium 8 – 9, 8 – 10 rayed. Coxigenital area: 1 b 10 – 12, 13 – 14 apart; 1 a 19 – 22, 9 – 10 apart; 2 a 36 – 37, 23 – 24 apart. Genitalia 16 – 17 wide, 14 long, with a few caudal granules; 3 a 23. Opisthosoma: c 2 39 – 41, on annulus 4 – 6; d 55 – 60, 34 – 35 apart, on annulus 14 – 15; e 49 – 50, 24 – 25 apart, on annulus 33 – 34; f 25 – 30, 20 – 21 apart, on annulus 57 – 59 or 7 th from rear. Total ventral annuli 63 – 65, terminal annulus with the five central microtubercles robust, spinelike. Total dorsal annuli 65 – 66. Caudal seta (h 2) 61 – 75; h 1 minute. RELATION TO HOST — vagrant on lower leaf surface.
materials_examined
MATERIAL EXAMINED — 60 females, 6 males, from Lonchocarpus sp. (Leguminosae), Campus " Luiz de Queiroz ", Piracicaba, São Paulo, Brazil (22 ° 42 ' 30 " S, 47 ° 38 ' 00 " W), 30 Jul 2002, coll. CHW Flechtmann, on 9 microscopic preparations.
Name
- Homonyms
- Catachela machaerii Keifer 1969