Hypoaspis maryamae, Joharchi, Omid & Halliday, Bruce, 2011

Joharchi, Omid & Halliday, Bruce, 2011, New species and new records of mites of the family Laelapidae (Acari: Mesostigmata) associated with Coleoptera in Iran, Zootaxa 2883, pp. 23-38 : 31-33

Hypoaspis maryamae sp. nov.

Specimens examined. Holotype, female, Iran, Yazd, 31°38'N, 53°59'E, alt. 2250 m, 15 May 2010, O. Joharchi coll., on Polyphylla olivieri (in JAZM). Paratypes: eight females, same data as holotype; four females, Tehran, Karaj, 36°04'N, 51°19'E, alt. 2200 m, 28 July 2009, O. Joharchi coll., on Polyphylla olivieri (in JAZM and ANIC).

Description. Female. Dorsal idiosoma. Dorsal shield length 860–966 µm, width at level of r3 504–546 µm (n = 4) ( Fig. 32 ). Dorsal shield oval, narrower posteriorly, with weak postero-lateral reticulation, with 39 pairs of long setae, 22 pairs on podonotal section plus r6 outside the shield, and 17 pairs on opisthonotal section, including two pairs of Zx setae between J and Z setae. Seta Z4 longest (240–265 µm), s3, s4, s5 (210–218 µm) and j3 (170–180 µm) also long, j6 long enough to reach to J1, J1 long enough to reach J2 but not to J3, J4 not long enough to reach J5. Soft skin surrounding shield with ten pairs of setae.

Ventral idiosoma ( Fig. 33 ). Tritosternum with paired pilose laciniae, pre-sternal area weakly sclerotised. Sternal shield with straight anterior margin and slightly concave posterior margin, with three pairs of smooth sternal setae, one pair of lyrifissures adjacent to setae st1, and a pair of circular pores between st2 and st3, anterior and antero-lateral surface of sternal shield with polygonal ornamentation, central and posterior are smooth. Metasternal platelets absent, metasternal setae st4 and metasternal pores located in soft skin; endopodal plates II/III completely fused to sternal shield, endopodal plates III/IV elongate, narrow, curved. Genital shield tongue-shaped, length 327– 332 µm, maximum width 143–168 µm, posterior edge rounded, surface with polygonal ornamentation, bearing the genital setae st5. Paragenital pores located on soft skin close to seta st5. Anal shield triangular, its anterior half with lineate ornamentation, unpaired post-anal seta shorter than para-anal setae, cribrum large, anal pores located on minute platelets outside anal shield. Opisthogastric skin striated, with one pair of oval metapodal plates and 11 pairs of smooth setae, ZV5 and JV5 very long and wavy. Exopodal plates behind coxa IV small and narrow. Peritrematal shield free, peritreme extending from coxa IV to posterior level of coxa I, post-stigmatal section conspicuous and narrow, with one pair of pores.

Gnathosoma . Epistome irregularly denticulate laterally, with smooth apical section ( Fig. 34 ). Hypostomal groove with six rows of denticles, each with about ten small teeth, and a smooth anterior transverse line. Hypostome with four pairs of smooth pointed setae, internal posterior hypostomal setae h3 longest ( Fig. 35 ), corniculi robust and horn-like, reaching mid-level of palp femur. Palp chaetotaxy: trochanter 2, femur 5, genu 6, tibia 12, tarsus 15, genu with a distinct dorso-distal triangular condyle, all setae smooth and needle-like, palp tarsal claw twotined. Fixed digit of chelicera with a small basal triangular tooth about ten smaller teeth, and a larger median tooth ( Fig. 36 ), pilus dentilis short and robust, dorsal seta long, thick, prostrate, movable digit with two large teeth, arthrodial membrane with a rounded flap and a few short filaments.

Legs. Legs II and III short, and leg IV longest. Chaetotaxy: Leg I: coxa 0 0/1 0/1 0, trochanter 1 1/1 0/2 1, femur 2 3/1 2/3 2, genu 2 3/2 3/1 2, tibia 2 3/2 3/1 2. Leg II: coxa 0 0/1 0/1 0, trochanter 1 0/1 0/2 1, femur 2 3/1 2/ 2 1 (pd 1 longest), genu 2 3/1 2/1 2 (pd 1 and pd 2 longest), tibia 2 2/1 2/1 2. Leg III: coxa 0 0/1 0/1 0, trochanter 1 1/ 1 0/1 1, femur 1 2/1 1/0 1 (ad 1 a macroseta), genu 2 2/1 2/1 1 (ventral setae all thick, pd 1, ad 1 longest), tibia: 2 1/1 2/1 1 (pl and ventral setae thick). Leg IV: coxa 0 0/1 0/0 0, trochanter 1 1/1 0/1 1, femur 1 2/1 1/0 1 (macroseta ad 1 342–350 µm, ad 2 84–85 µm, Fig. 38 ), genu 2 2/1 3/0 1 (macrosetae ad 1 163–172 µm, pd 1 152–155 µm, Fig. 39 ), tibia 2 1/1 3/1 2 (pl 1 and ventral setae thick), tarsi I–IV with 18 setae 3 3/2 3/2 3 + mv, md, tarsus II with al 1, pl 1 and all ventral setae thick ( Fig. 37 ), tarsus IV with four macrosetae ad 2 (210–230 µm), pd 2 (210–230 µm), ad 3 (210–222 µm), pd 3 (184–185 µm) ( Fig. 40 ). All pre-tarsi with a pair of claws and a long thin membranous ambulacrum.

Insemination structures: Insemination ducts opening on posterior margin of coxa III, sacculus indistinct, apparently unsclerotised.

Etymology. This species is named in honour of Maryam Moradi, who supported this project in many ways. Notes. Hypoaspis maryamae differs from almost all other species in the genus by the presence of four long macrosetae on tarsus IV and two macrosetae on genu IV. Only H. integer has two macrosetae on genu IV; H. maryamae differs from H. integer by its longer sternal setae and the very long and wavy form of ZV5. It also differs from H. (H.) polyphyllae by its longer setae in the central area of the dorsal shield, especially j6, J1 and J2, and by having a greater number of opisthogastric setae.

Figures

FIGURES 32 – 40. Hypoaspis maryamae sp. nov., female. 32. Dorsal idiosoma; 33. Ventral idiosoma; 34. Epistome; 35. Hypostome; 36. Chelicera; 37. Tarsus II; 38. Femur IV; 39. Genu IV; 40. Tarsus IV. Scale bar = 100 μm for 32, 33, 37 – 40, 50