Daidalotarsonemus vandevriei Suski, 1967a

Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 145-152

Daidalotarsonemus vandevriei Suski, 1967a

( Figs. 125–130 )

Daidalotarsonemus vandevriei Suski, 1967a: 191 ; Smiley, 1972: 93; Lindquist, 1986: 319; Lin & Zhang, 2002: 65.

Diagnosis. Adults: Gnathosoma : Palpal length about 1/2 length of gnathosoma. Female: Dorsum: Prodorsum reticulate. Tergite C with longitudinal depressions. Tergite D with cells grouped between setae d. Setae v1, sc2, c1, c2 and h unmodified in shape. Setae d, e and f stout and capitate. Setae v1 slightly longer than sc2 (~ 34 and ~ 32, respectively). Setae c1 slightly shorter than c2 (~ 11 and ~ 15, respectively). Setae c1 inserted near midlength of tergite C. Posterior setae d, e and f different in length (~ 15, ~ 21 and ~ 20, respectively) but similar in width (~ 3). Setae f ~8 distant from each other, on rounded tubercles. Setae h shorter than posterior setae d, e and f (~ 12). Venter: Tegula rounded, distinctly arched posteriorly. All apodemes distinct, except for prosternal apodeme nearly missing. Apodemes 2 not fused to prosternal apodeme. Poststernal apodeme bifurcated anteriorly. Legs: Solenidion φ1 of tibiotarsus I not visible. Seta tc” of tarsus II and l’ of tibia III slender but serrate. Male: Dorsum: Setae v1 and sc2 similar in length (~ 30), both longer than v2 (~ 22). Setae sc1 much longer than v1 (~ 51 and ~16, respectively). Setae c1 as long as d (~ 44) both longer than c2 (~ 28). Setae f slightly shorter than d (~ 49). Venter: Apodemes 5 inconspicuous at posterior end of poststernal apodeme. Legs: Solenidion φ1 of tibiotarsus I absent. Solenidion ω of tarsus II length 8. On femorogenu IV, seta v’ G around four times longer than v’ F (~ 28 and ~ 7, respectively). On tibia IV, seta v’ Ti slightly longer tibia IV itself (~ 54 and ~ 40, respectively). Larva: mentioned by Suski (1967a) and Lindquist (1986) but not described.

Redescription:

Female:

Gnathosoma : nearly semicircular in ventral view, length 36, maximum width 24. Setae dgs 17 and vgs 10 smooth; palps length 18, with two small subterminal setae and terminal projections. Pharynx length 13, maximum width 7.

Idiosoma—dorsum: length 203, width at level of c1 147. Prodorsal shield completely reticulate. Tergite C covered with waved, continuous ridges. Tergite D with three transverse rows of cells between setae d. Lengths of setae: v1 34, sc1 16, sc2 32, c1 11, c2 15, d 21, e 20 and h 12. Maximum widths of expanded setae: d 3, e 3 and f 3. Dorsal setae serrate, except for c1, c2 and h. Setae v1, sc2, c1 and c2 unmodified; d, e and f stout and capitate. All inserted on tubercles, except for h. Distances between dorsal setae: v1–v1 27, sc2–sc2 52, v1–sc2 28, c1–c1 52, c2–c2 136, c1–c2 46, d–d 64, f–f 8, e–f 49 and h–h 9.

Idiosoma—venter: setae 1a 8; 2a 14; 3a 9 near anteromedial margins of apodemes 3; 3b 10 on posterior ends of apodemes 4. Apodeme 1 conspicuous, fused to anterior end of prosternal apodeme. Apodeme 2 short, not fused to prosternal apodeme. Prosternal apodeme inconspicuous. Sejugal apodeme uninterrupted. Apodeme 3 extending diagonally from proximity of base of seta 3a to anterior margin of trochanter III. Apodeme 4 extending diagonally from midlength of poststernal apodeme to base of seta 3b. Poststernal apodeme bifurcated anteriorly. Tegula 10 wide and 11 long; posterior margin heavily arched. Setae ps 9 smooth.

Legs: Lengths: leg I 58, leg II 52, leg III 86. Number of setae: leg I: 3-4-5(1)+7(1), leg II: 3-3-4-4(1), leg III: 1+2-4-4. Tarsal solenidion ω of tibiotarsus I 4. Solenidion φ1 absent; solenidion φ2 4, slightly capitate; famulus k 5; all inserted at approximately same level. Seta d of tibia I 28 serrate. Solenidion ω of tarsus II length 4. Seta d of tibia II 18 serrate. Femorogenu IV 15; tibiotarsus IV 9. Length of leg IV setae: v’ F 9, v’ G 17, v’ Ti 24 and tc” 26; setae smooth, except for v’ Ti; v’ Ti tapered.

Male:

Gnathosoma : subtriangular in ventral view, length 32, maximum width 24. Setae dgs 9 smooth and vgs 14 serrate. Palps length 16, with two small subterminal setae and terminal projections. Pharynx length 15, maximum width 7.

Idiosoma—dorsum: length 179, maximum width 116. Length of dorsal setae: v1 29, v2 22, sc1 51, sc2 30, c1 38, c2 26, d 54, f 38. All setae slender and serrate. Distances between dorsal setae: v1–v1 14, sc1–sc1 21, sc2–sc2 39, v1–sc2 24, c1–c1 101, c2–c2 84, c1–c2 62, d–d 58, f–f 19. Seta sc2 laterad and slightly posterior to sc1.

Idiosoma—venter: setae 1a 7; 2a 10; 3a 11 located near anterior end of apodemes 3; 3b 13. Apodeme 1 fused to anterior end of prosternal apodeme. Apodeme 2 not fused to prosternal apodeme. Prosternal conspicuous from junction with apodeme 1 to level of apodemes 2, and inconspicuous from that point to sejugal apodeme. Lines of fusion between coxae III and IV with venter of idiosoma mostly conspicuous. Connecting lines between 3, 4 and poststernal apodemes diffuse.

Legs: Lengths: leg I 64, leg II 63, leg III 81, leg IV 137. Number of setae: leg I: 3-4-5(1)-6(1), leg II: 3-3-4- 4(1), leg III: 1-3-4-4. Solenidion ω of tarsus I 5. Sensory cluster of tibia I composed of φ1 3, and famulus k 4, both inserted at approximately same level. Seta d of tibia I 14 serrate. Solenidion ω of tarsus II length 8. Seta d of tibia II 16 serrate. Trochanter IV wider than long, seta v’ 18, smooth. Femorogenu IV length 65 and width 34 at v’ F level; anterior margin convex, posterior margin slightly convex at proximal third. Seta v’ F 7 smooth. Setae v’ G 28 and l” G 13 serrate. Tibia IV length 40; solenidion φ 8; seta v’ Ti 54, serrate. Tarsus IV short, bearing 3 smooth setae of following lengths: tc” 7, pv” 6 and u’ 5.

Type material deposition: holotype ♀ and allotype ♂ deposited at ZMPAS ; one paratype ♀ and one paratype ♂ at AUW .

Locality: Previous Records: Koszalin County, West Pomeranian Voivodeship, Poland; Serooskerke, Zeeland Province, Netherlands (Suski 1967 — type series locality). New Records: Aesculus hippocastanum ( Hippocastanaceae ), Vancouver, British Columbia Province, Canada; Malus sp. ( Rosaceae ), Portugal.

Figures

FIGURE 125. Dorsal surface of Daidalotarsonemus vandevriei Suski, 1967 (female).

FIGURE 126. Ventral surface of Daidalotarsonemus vandevriei Suski, 1967 (female).

FIGURE 127. Legs I (A), II (B), III (C) and IV (D) of Daidalotarsonemus vandevriei Suski, 1967 (female).

FIGURE 128. Dorsal surface of Daidalotarsonemus vandevriei Suski, 1967 (male).

FIGURE 129. Ventral surface of Daidalotarsonemus vandevriei Suski, 1967 (male).

FIGURE 130. Legs I (A), II (B), III (C) and IV (D) of Daidalotarsonemus vandevriei Suski, 1967 (male).