Two new species of Daidalotarsonemus (Acari: Prostigmata: Tarsonemidae) from Brazil Author Rezende, J. M. Author Lofego, A. C. Author Ochoa, R. text Acarologia 2015 2015-12-18 55 4 435 448 http://dx.doi.org/10.1051/acarologia/20152183 journal article 10.1051/acarologia/20152183 2107-7207 5402293 8DF0990A-E78B-43A4-935E-389AE2DFC497 Daidalotarsonemus savanicus n. sp. ( Figures 5-8 ) Diagnosis — Females of this new species are most similar to Daidalotarsonemus tessellatus De Leon (1956) and Daidalotarsonemus ethiopicus Mahunka (1981) for the ornamentation pattern on tergite C and shape of anterior setae v1 , sc2 , c1 and c2 . They differ from the others by the ornamentation pattern on tergite D, with reticulation all over it including a rhomboid reticulum on the center of the plate; shape of posterior setae d , e , f and h ; and shape of the setae pl" on tarsus II, which are stout and serrate. Adult female ( eight specimens measured). Gnathosoma — covered by the prodorsum, subtriangular in ventral view, length 31 (30 – 33), maximum width 20 (19 – 23); dorsal apodeme distinct. Setae dgs 13 (11 – 14) and vgs 9 (8 – 10) smooth; palps short 9 (9 – 10), with one small subterminal seta. Pharynx fusiform, 17 (15 – 18) long and wide10 (9 – 12) at maximum width. Idiosoma - dorsum ( Figures 5 and 8 ) — length 228 (223 – 232), width at level of c1 141 (138 – 142); prodorsal shield with regular ornamentation. Stigma located near lateral notch of prodorsal shield, which is equidistant to the v1 and sc2 setal bases. Tergite C with four transverse central rows of reticula and irregular ornamentation laterally. Tergite D with irregular ridges, including a rhomboid reticulum on the center of the plate. Lengths of the setae: v1 27 (26 – 29), sc1 12 (11 – 14), sc2 38 (36 – 40), c1 18 (16 – 20), c2 17 (15 – 18), d 34 (33 – 36), e 24 (22 – 26), f 39 (37 – 40) and h 23 (22 – 25). Maximum width of expanded setae: d 7, e 17 (16 – 18) and f 6. All dorsal setae serrate; except for sc2 , c1 and c2 smooth. Setae v1 , c1 , c2 and h setiform; sc2 falcate; d and f lanceolate with two veins; e asymmetrical, subelliptical, with one lateral vein. Distances between dorsal setae: v1-v1 28 (26 – 29), sc2-sc2 53 (50 – 54), v1-sc2 30 (29 – 31), c1-c1 56 (54 – 57), c2-c2 116 (115 – 117), c1-c2 37 (36 – 39), d -d 38 (37 – 40), f -f 14 (13 – 16), e -f 14 (12 – 15) and h -h 18 (17 – 20). Setae sc2 inserted posteromedial to sc1 . FIGURE 5: Daidalotarsonemus savanicus n. sp. (female): Dorsal surface of the idiosoma. FIGURE 6: Daidalotarsonemus savanicus n. sp. (female): Ventral surface of the idiosoma. FIGURE 7: Daidalotarsonemus savanicus n. sp. (female). Legs: A – leg I; B – leg II; C – leg III; D – leg IV. FIGURE 8: Daidalotarsonemus savanicus n. sp. (female): Dorsal micrograph of the idiosoma. Idiosoma - venter ( Figure 6 ) — setae 1a 7 (6 – 9), posteriad of apodemes 1; 2a 9 (8 – 9), posterolaterad and near middle of apodemes 2; 3a 16 (15 – 18) near anteriomedial margins of apodemes 3; 3b 15 (13 – 17) on posterior margins of apodemes 4. Apodeme 1 conspicuous, fused to anterior end of prosternal apodeme. Apodeme 2 not fused to the prosternal apodeme. Prosternal apodeme conspicuous from junction with apodeme 1 to the middle portion of sejugal apodeme, where is fused with it. Sejugal apodeme uninterrupted, with a median furrow. Apodeme 3 with a constriction near its middle, extending diagonally from proximity of base of seta 3a to anterior margin of trochanter 3; apodeme 4 extending diagonally from the middle of the poststernal apodeme to base of seta 3b . Poststernal apodeme bifurcated anteriorly. Tegula 14 (12 – 15) wide and very short 4 (4 – 5); posterior margin slightly arched. Setae ps 21 (19 – 22) serrate. Legs ( Figure 7 ) — lengths (measured from femur to tarsus): leg I 45 (42 – 46), leg II 47 (45 – 48), leg III 85 (83 – 86). Number of setae (solenidia in parentheses) on femur, genu, tibia and tarsus, respectively: leg I: 3-4-5(2)+7(1), leg II: 3-4-4-3(1), leg III: 3-4-4. Tarsal solenidion ω of tibiotarsus I 6, stout, wider medially. Sensory cluster of tibia I complete, solenidion φ1 3, slender, capitate; solenidion φ2 2 (2-3), robust, slightly capitate; famulus k 4 (4 – 5); all inserted at approximately the same level. Seta d of tibia I 13 (12 – 15), serrate. Solenidion ω of tarsus II proximally inserted, 5 long, stout, wider medially; seta pl” of tarsus II stout and serrate. Seta d of tibia II 12 (11 – 14), serrate. Femorogenu IV 33 (31 – 34); tibiotarsus IV 9 (9). Length of leg IV setae: v’ F 8 (7 – 9), v’ G 17 (16 – 19), v´ Ti 25 (23 – 26) and tc" 59 (58 – 62); all setae smooth, except for v’ G serrate; v’ Ti falcate. Adult male and larva — Unknown. Type material — Holotype and eleven paratypes . Holotype from Caryocar brasiliense Camb. (Caryocaraceae) . Among paratypes , two from Campomanesia pubescens (DC.) Berg (Myrtaceae) , one from Miconia albicans (Sw.) Triana (Melastomataceae) , one from Myrtaceae sp., one from Pouteria torta (Mart.) Radlk. (Sapotaceae) , 52°35’W 18°51’S , Chapadªo do Sul, State of Mato Grosso do Sul , 26/I/2010 , J.M. Rezende, A.C. Lofego & P.M. Paulon; one from Bauhinia sp. (Fabaceae) , one from Didymopanax vinosum Cham. & Schltdl. (Araliaceae) , one from Myrtaceae sp., 52°44’W 18°15’S , Chapadªo do CØu, State of GoiAEs, 02/II/2010 ; one from Genipa americana L. ( Rubiaceae ), 51°45’W 17°51’S , Jataí, State of GoiAEs, 05/II/2010 ; one from Xylopia aromatica (Lam.) Mart. (Annonaceae) , 48°54’W 18°31’S , Tupaciguara, State of Minas Gerais , 10/II/2010 ; one from Caryocar brasiliense Camb. (Caryocaraceae) , 46°41’W 15°59’S , Unaí, State of Minas Gerais , 03/III/2010 . Holotype and five paratypes deposited at DZSJRP; three paratypes deposited at ESALQ/USP; three paratypes deposited at USNM. Etymology — the name savanicus refers to the Cerrado, a savannah biome in which this species is commonly found. Remarks — Following an examination of voucher specimens, we conclude that individuals of this new species have been recorded as Daidalotarsonemus tessellatus De Leon in previous papers ( Buosi et al . 2006 , Demite et al. 2009 , Feres et al. 2005 , Lofego et al. 2005 and Sousa et al. 2015 ). The observations made by Lofego et al. (2005) regarding the habits for Daidalotarsonemus tessellatus , for which phytophagy was observed, should be conferred to Daidalotarsonemus savanicus .