Cocoseius elsalvador Denmark and Andrews 1981: 156

Melo, Elisângela A. dos S. F., Gondim, Manoel G. C. Jr, de Moraes, Gilberto J. & Oliveira, Aníbal R., 2019, A description of the male of Cocoseius elsalvador Denmark and Andrews (Acari: Phytoseiidae: Typhlodrominae), Acarologia 59 (1), pp. 129-133 : 130-131

Cocoseius elsalvador Denmark and Andrews 1981: 156 .

Chant and McMurtry 1994: 238; Denmark et al. 1999: 87; Gondim Jr. and Moraes 2001:

88; Moraes et al. 2004: 263; Vasconcelos et al. 2006: 93; Chant and McMurtry 2007: 134; Lawson-Balagbo et al. 2008: 88; Denmark and Evans 2011: 325; Gondim Jr. et al. 2012: 531; Souza et al. 2015: 104; Argolo et al. 2017: 348.

Adult male description ( Fig. 1 ) (n = 4)

Dorsum ( Fig. 1A ) — Dorsal shield reticulate, 236 (230 – 240) long and 148 (140 – 160) wide, with 6 distinguishable pairs of lyrifissures, 3 pairs of pores, and 18 pairs of pointed, serrated setae: j1 20 (19 – 21), j3 48 (44 – 49), j4 33 (32 – 34), j5 50 (47 – 55), j6 56 (53 – 61), J2 55 (50 – 60), J5 22 (21 – 23), z2 21 (20 – 22), z3 27 (26 – 28), z4 60 (58 – 62), z5 31 (26 – 33), z6 75 (71 – 76), Z4 59 (57 – 60), Z5 59 (56 – 62), s4 65 (60 – 68), S4 53 (50 – 56), r3 34 (32 – 35), R1 54 (51 – 57). Peritreme extending to the level of z3.

Venter ( Fig. 1B ) — Sternogenital shield reticulate, with 5 pairs of setae and 2 pairs of lyrifissures. Distances between st1-st5 99 (95 – 100), st1-st1 47 (45 – 48), st2-st2 54 (52 – 56), st3-st3 53 (52 – 55), st4-st4 46 (43 – 50), st5-st5 38 (35 – 40). Ventrianal shield subtriangular and reticulate, 100 (95 – 105) long, 138 (134 – 144) wide at level of anterior corners and 57 (55 – 58) at anus level, with 4 pairs of pre-anal setae (JV1, JV2, JV3 and ZV2), 1 pair of small pre-anal pores and 3 pairs of lyrifissures. Membrane surrounding the ventrianal shield with only one pair of long, serrated setae JV5 44 (43 – 45), and 1 pair of lyrifissures.

Chelicera ( Fig. 1C ) — Fixed digit 19 (18 – 20), with 2 subapical teeth, all distal to pilus dentilis, and movable digit 20 (19 – 20) with 1 tooth. Spermatodactyl shaft 12 (11 – 13), foot 16 (13 – 18).

Legs ( Fig. 1D ) — No macrosetae on legs I–III. Macrosetae on leg IV knobed: SgeIV 33 (29 – 35), StiIV 28 (23 – 30), StIV 57 (50 – 61). Chaetotaxy: genu II 2-2/0, 2/0-1, genu III 1-2/1, 2/0-1.

Specimens examined — 3 ♂♂ collected by M.G.C. Gondim Jr. on 8 Jan. 1999 from leaves of Acrocomia aculeata (Jacq.) Lodd. Ex Mart. , Igarassu-PE, Brazil, at 7°53’27”S, 34°58’36”W; 1 ♂ collected by E.A.S.F. Melo on 19 Apr. 2016 from leaves of Euterpe oleraceae Mart., Estação Experimental ‘Lemos Maia’ – CEPLAC, Una-BA, Brazil, at 15°17’34”S, 39°04’38”W.

Remarks — Male dorsal shield reticulation, pores and setae similar to female, except that r3 and R1 are inserted on the shield, and that setae are generally shorter in the male ( Denmark and Andrews 1981; Chant and McMurtry 1994; Gondim Jr. and Moraes 2001; Souza et al. 2015). Peritreme extends to the level of z3, as reported for females by Chant and McMurtry (1994) and Gondim Jr. and Moraes (2001), reported by Denmark and Andrews (1981) as extending beyond s 4 in female holotype. Movable cheliceral digit with one tooth, instead of none in the female ( Denmark and Andrews 1981; Chant and McMurtry 1994). Although chaetotaxy of genua II and III differ from what was described for the holotype female ( Denmark and Andrews 1981), by the absence of a ventral seta on genu II and the presence of a ventral seta on genu III, the chaetotaxy of the male (genu II 2-2/0, 2/0-1, genu III 1-2/1, 2/0-1) is the same of five females we checked from the mite collection of UESC (vouchers from Souza et al. 2015) and of C. palmarum (Gondim Jr. et al. 2000) .

Figures

Figure 1 Cocoseius elsalvador male: A – Dorsal shield and anterior peritreme; B – Ventral shields; C – Spermatodactyl; D – Leg IV.