Typhlodromus (Anthoseius) fayoumensis, Abo-Shnaf, Reham I. A. & De, Gilberto J., 2014

Abo-Shnaf, Reham I. A. & De, Gilberto J., 2014, Phytoseiid mites (Acari: Phytoseiidae) from Egypt, with new records, descriptions of new species, and a key to species, Zootaxa 3865 (1), pp. 1-71 : 46-48

Typhlodromus (Anthoseius) fayoumensis n. sp.

( Figs 64–70 )

Diagnosis. Except for J5 and S5, dorsal shield setae long and serrate. Sternal shield with two pairs of setae; third and fourth pairs of sternal setae on platelets. Ventrianal shield with three pairs of setae and no pores.

Female (holotype and two paratypes).

Dorsum ( Fig. 64 ). Dorsal shield mostly reticulate, smooth along margins and in region between j4 / j5 and j6; 333 (313–346) long and 206 (187–215) wide, with 18 pairs of setae, four pairs of pores and seven pairs of lyrifissures. Setae j1 31 (29–34), j3 42 (39–44), j4 33 (31–36), j5 37 (34–38), j6 48 (47–48), J2 56 (53–59), J5 8 (8), z2 32 (29–35), z3 44 (43–46), z4 51 (49–51), z5 35 (34–36), Z4 63 (60–65), Z5 69 (67–73), s4 54 (49–57), s6 56 (55–56), S2 64 (62–67), S4 61 (57– 66), S5 11 (10–11), r3 42 (39–46), R1 53 (50–60). Setae J5 and S5, smooth; other setae long and serrate. Peritreme extending forward to level between j1 and j3.

Venter ( Fig. 65 ). Sternal shield smooth, with two pairs of setae and two pairs of lyrifissures; posterior margin of sternal shield almost straight; third and fourth pairs of sternal setae each on a platelet. Distances between st1–st1 54 (49–59), st2–st2 60 (57–61), st3–st3 48 (48), st4–st4 47 (47). Genital shield smooth and with lateral extensions; distance between st5–st5 73 (71–75). Ventrianal shield subpentagonal, lightly striate anteriorly to anal opening; 119 (118–120) long, 96 (94–100) wide at level of ZV2 and 75 (73–77) wide at level of anus; with three pairs of pre-anal setae and no pores. Seta JV5 72 (70–73). Ventral setae smooth, except JV 5, serrate. Two pairs of metapodal plates. Spermatheca ( Fig. 67 ). Calyx funnel shaped, 8 (7–8) long; atrium indistinct.

Gnathosoma. Corniculi slightly convergent distally; basal width of corniculus 4, distance between bases of corniculi 5. Movable cheliceral digit 30 (30–31) long, with one tooth ( Fig. 66 ); fixed digit 30 (29–33) long, with 2–3 teeth; dorsal and lateral lyrifissures distinct.

Legs. Macrosetae blunt: Sge IV 24 (22–26), Sti IV 28 (27–29), St IV 43 (41–44) ( Fig. 68 ); chaetotaxy of genu II 2, 2/0, 2/0, 1; genu III 1, 2/0, 2/1, 1.

Male (one paratype).

Dorsum. Dorsal shield pattern as in female; 309 long and 204 wide. Setae j1 27, j3 36, j4 27, j5 31, j6 41, J2 47, J5 10, z2 29, z3 37, z4 40, z5 27, Z4 54, Z5 54, s4 45, s6 48, S2 53, S4 47, S5 13, r3 35, R1 42. Seta J5 and S 5, smooth; other setae serrate. Peritreme extending forward to level of z2.

Venter. Distances between st1–st1 48, st2–st2 55, st3–st3 61, st4–st4 57, st5–st5 47. Ventrianal shield subtriangular, strongly reticulate ( Fig. 70 ); 176 long and 128 wide at anterior corners; with three pairs of pre-anal setae, two pairs of lyrifissures and no pores. Seta JV5 47.

Gnathosoma. Movable cheliceral digit 23 long, with one tooth; fixed digit 23 long, with two teeth; dorsal and lateral lyrifissures distinct. Shaft of spermatodactyl 20 long ( Fig. 69 ).

Legs. Macrosetae blunt: Sge IV 22, Sti IV 21, St IV 41; chaetotaxy of genu II and III as in female.

Type specimens. Holotype female from soil under fig plant, at Senuris, Fayoum governorate, June 2012; one paratype female from soil under P. e d ul i s, at Orman Botanical Garden, Giza governorate, June 2012; one paratype female from soil under L. indica , at the Faculty of Agriculture Farm, Cairo University, Giza governorate, July 2012; one paratype male from soil under an apple tree, at Senuris, Fayoum governorate, October 2012, all collected by R.I.A. Abo-Shnaf. Holotype deposited at the mite collection of the Faculty of Agriculture, Cairo University, Giza governorate, Egypt; paratypes deposited at Departamento de Entomologia e Acarologia, Escola Superior de Agricultura “Luiz de Queiroz” ( ESALQ), Universidade de São Paulo ( USP), Piracicaba, State of São Paulo, Brazil.

Etymology. The name fayoumensis refers to Fayoum, the governorate where the holotype female and the paratype male were collected.

Remarks. Females of this new species are most similar to Typhlodromus (A.) balanites ( El-Badry, 1967b), T. (A.) bambusae ( Ehara, 1964) , T. (A.) bergi ( Moraes & McMurtry, 1988) , T. (A.) hartlandrowei ( Evans, 1958) and T. (A.) transvaalensis ( Nesbitt, 1951) . T. (A.) balanites differs from the new species by having st3 on sternal shield and the ventrianal shield with a pronounced constriction at the level of JV2 (vase-shaped); T. (A.) bambusae , by having a slightly shorter peritreme (extending slightly anteriad of z2), st3 and st4 inserted on the unsclerotised cuticle and macrosetae sharp-tipped; T. (A.) bergi , by having most dorsal idiosomal setae smooth, st3 on sternal shield and ventrianal shield with four pairs of pre-anal setae; T. (A.) hartlandrowei , by having st3 on sternal shield and one pair of metapodal plates; T. (A.) transvaalensis , by having most dorsal idiosomal setae distally knobbed and sternal shield with a distinct median lobe on posterior margin.

Figures

FIGURES 64 – 70. Typhlodromus (Anthoseius) fayoumensis n. sp.: 64. Female dorsal shield; 65. Female ventral shields; 66. Female chelicera; 67. Spermatheca; 68. Genu, tibia and basitarsus of female leg IV; 69. Spermatodactyl; 70. Male ventrianal shield.