Daidalotarsonemus deleoni ( Smiley, 1967 )

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 : 41-44

Daidalotarsonemus deleoni ( Smiley, 1967)

( Figs. 29–31 )

Hemitarsonemus deleoni Smiley, 1967: 133 .

Daidalotarsonemus deleoni ; Attiah, 1970: 191; Smiley, 1972: 89; Lindquist, 1986: 320; Lin & Zhang, 2002: 58.

Diagnosis. Female: unknown. Male: Gnathosoma : Palpal length about 1/3 length of gnathosoma. Dorsum: Setae v1 longer than sc2 (~29 and ~20, respectively), both longer than v2 (~17). Setae c1 slightly longer than c2 (~45 and ~41, respectively) both shorter than d (~51). Venter: Apodemes 5 not visible at posterior end of poststernal apodeme. Legs: Sensory cluster of tibiotarsus I incomplete. Solenidion ω of tarsus II 5. On femorogenu IV, seta v’ G around five times longer than v’ F (~38 and ~7, respectively). On tibia IV, seta v’ Ti around 1.6 times longer than tibia IV itself (~77 and ~47, respectively). Larva: unknown.

Redescription:

Gnathosoma : subtriangular in ventral view, length 30, maximum width 26; dorsal apodeme distinct. Setae dgs 12 serrate and vgs 8 smooth; Palps moderately long 10, with 2 small subterminal setae and terminal projections. Pharynx fusiform, length 15 and width 7 at widest region.

Idiosoma—dorsum: length 190, maximum width 100. Prodorsal shield trapezoidal. Length of dorsal setae: v1 29, v2 17, sc1 65, sc2 20, c1 45, c2 41, d 51, f 54. All setae slender and serrate. Distances between dorsal setae: v1–v1 8, sc1–sc1 30, sc2–sc2 46, v1–sc2 39, c1–c1 88, c2–c2 93, c1–c2 56, d–d 51, f–f 18. Seta sc2 laterad and slightly posterior to sc1.

Idiosoma—venter: setae 1a 6; setae 2a 10; setae 3a 16 located near anterior end of apodemes 3; and setae 3b 13. Apodeme 1 fused to anterior end of prosternal apodeme; apodeme 2 fused to prosternal apodeme. Prosternal apodeme conspicuous between coxisternal plates I but inconspicuous between coxisternal plates II, extending close to sejugal apodeme. Lines of fusion between coxae III and IV with venter of idiosoma mostly conspicuous; connecting between 3, 4 and poststernal apodemes diffuse.

Legs: lengths (measured from femur to tarsus): leg I 64, leg II 57, leg III 93, leg IV 154. Number of setae: leg I: 3-4-5(1)+5(1), leg II: 3-2-4-4(1), leg III: 1-2-2-1. Due to type condition, it was not possible to count precisely all setae on legs. 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 12 serrate. Solenidion ω of tarsus II 8. Seta d of tibia II 15 serrate. Trochanter IV wider than long, seta v’ 4, serrate. Femorogenu IV length 81 and width 30 at v’ F level; anterior margin convex, posterior margin slightly convex at proximal third. Seta v’ F 7 serrate. Setae v’ G 38 and l” G 13 serrate. Tibia IV length 47; solenidion φ 8; seta v’ Ti 77, serrate. Tarsus IV short, bearing 3 smooth setae, lengths: tc” 8, pv” 6 and u’ 5.

Type material deposition: holotype ♂ deposited at USNM .

Locality: Tonga Islands ( Smiley 1967).

Figures

FIGURE 29. Dorsal surface of Daidalotarsonemus deleoni (Smiley, 1967) (male).

FIGURE 30. Ventral surface of Daidalotarsonemus deleoni (Smiley, 1967) (male).

FIGURE 31. Legs I (A), II (B), III (C) and IV (D) of Daidalotarsonemus deleoni (Smiley, 1967) (male).