Anystipalpus kazemii, Lindquist, Evert E. & Moraza, María L., 2009

Lindquist, Evert E. & Moraza, María L., 2009, Anystipalpus, Antennoseius and Vitzthumia: a taxonomic and nomenclatural conundrum of genera (Acari: Mesostigmata: Dermanyssina), with description of four species of Anystipalpus, Zootaxa 2243, pp. 1-39 : 28-31

Anystipalpus kazemii n. sp.

( Figs 41–52 )

Diagnosis. ADULT FEMALE. Podonotal shield with eight of its 21 pairs of setae (j2-j5, z2-z4, s4) strongly thickened, smooth, basally spinelike but with acutely pointed tips; opisthonotal shield with setae collectively similar in smooth, pointed form and length (mostly about 0.4 as long as longitudinal intervals between their bases). Sternal shield lacking lyrifissures. Epigynal shield tongue-shaped, with lateral margins parallel anterior to genital setae and posterior margin evenly rounded. Peritrematal-exopodal shield with two lines extending from stigma to posterior margin. Coxa I with one seta (av) bluntly spinelike. Tarsus II lacking spinelike setae. Leg I with trochanter seta pd, femoral seta pd1, and genual seta pd2 slightly spinelike, acutely pointed.

Description. ADULT FEMALE. Dorsal shields together 430 long, reticulated over entire surfaces ( Fig. 43 ), reticula more elongate between setae J5 and Z5. Podonotal shield 250 long, greatest width 223 at level of setae s6, with 21 pairs of smooth setae (j1-j6, z1-z6, s1-s6, r2 and two extra pairs in s3-s6 area) of which eight pairs (j2-j5, z2-z4, s4) thickened basally, smooth, spinelike, but with acutely pointed tips ( Fig. 44 ), similar in length to most other podonotal setae (18–20); setae j1 and z1 short (8–10), smooth, slightly spinelike; setae s2 (24–27) slightly longer than other slender setae (15–19). Opisthonotal shield 180 long, 220 wide at level of setae S1, posterior margin slightly concave between setae Z5, with 15 pairs of setae (J1-J5, Z1-Z5, S1-S5), all collectively similar in smooth, slightly stout, pointed form ( Fig. 45 ) and length (13–15), but Z5 slightly longer (19); most setae about 0.4 to 0.5 as long as longitudinal intervals between their bases; transverse interval between setae J5 (39) subequal to that between Z5 (40). Lateral soft cuticle with about 12 pairs of smooth setae (11–13), including r3-r6, R1-R6 and two pairs of UR setae.

Tritosternum with laciniae (69) free nearly to their bases, where fused for 7 µm and with denticulate fringe above apical margin of tritosternal base. Presternal area with pair of narrow platelets adhered to anterior margin of sternal shield. Sternal shield ca. 95 long from anterior presternal margin to irregularly straight posterior margin, 70 at narrowest width between coxae II; anterior part of sternal shield weakly sclerotized to level slightly behind insertions of setae st1; sternal shield with three pairs of attenuate setae, these progressively slightly shorter from st1 (18) to st3 (14), and lacking poroids; shield with pair of parallel longitudinal lines near mid-surface faint, sometimes lacking; endopodal extensions between coxae I and II united with sternal shield, but those between coxae II and III sometimes separate fragments ( Fig. 52 ). Setae st4 (14) inserted on soft cuticle. Endopodal strips weakly developed between coxae III and IV. Epigynal shield smooth, 117 long from anterior margin of broadly rounded hyaline rim to evenly rounded posterior margin, tongue-shaped, with lateral margins nearly parallel ( Fig. 52 ), about as wide between legs IV as greatest width (45) between setae st5 (12). Opisthosomatic venter with two pairs of metapodal platelets (one smaller pair near posterior edge of peritrematal-exopodal shield and one larger semioval pair (19–21 x 8–9) well removed behind peritrematal-exopodal shields), and with one pair of small postgenital platelets. Anal shield faintly lineate, with paranal setae (12–13) about as long as postanal seta (12); shield width (60) less than its length including cribrum (75). Soft cuticle with ten pairs of smooth, simple opisthogastric setae JV1-JV5, ZV1-ZV5 flanked by two pairs of simple submarginal UR or marginal R setae. Peritrematal-exopodal shield with two lines extending from stigma to evenly rounded posterior margin ( Fig. 52 ); peritreme extends anteriorly to level of seta z1, where vertex curved ventrally. Spermathecal structures indiscernible in specimens at hand.

Details of tectum not discernible on specimen at hand. Cheliceral shaft, excluding basal section, 125 long, with slender digits; dorsal face of fixed digit with lateral (antiaxial) hoodlike ridge that begins to taper midway along length of digit nearly to apex, seeming to cover movable digit in repose; fixed digit with two moderately large teeth along apical third of masticatory margin and offset tooth subapically ( Fig.46 ); movable digit (41) strongly bidentate, with imperceptible vestige of process on midventral surface. Subcapitulum slender, elongate, its greatest width (53) at base 0.51 its length (104) from capitular base to apex of corniculi; hypostome on a neck-like projection, such that longitudinal distance between h3 and pc (40) about five times that between h1 and h3 (8). Deutosternum with seven transverse rows of denticles, all except basal row connected laterally, rows one to five similar in width, each with a single median denticle, sixth and seventh rows slightly widened, with several denticles ( Fig. 47 ). Corniculi normal in form, slightly longer than internal malae; subcapitular setae simple, hp1 (20) longer than capitular seta pc (16), hp3 shorter (11), but longer than hp2 (9). Palpus elongate (188), about 0.51 as long as leg I, each of palpal trochanter (48), femur (45), genu (36), tibia (41) similarly elongated ( Fig. 41 ), at least twice as long as palptarsus (18); palptrochanter with more basal seta (10) 0.5 as long as more distal seta (21); apical pd seta of palptibia curved, blunt (13–14) in distinction to adjacent setae.

Legs I (366) nearly 0.9 as long as collective length of the two dorsal shields; other leg lengths (excluding pretarsi): II (290), III (278), IV (327). Leg I length ratios, genu: tibia: tarsus, about 1.0: 0.9: 1.1; tarsus relatively short (67), 0.78 as long as femur (86). Coxae I–IV lineate on posterior inner surfaces ( Figs 48–51 ); basal seta av of coxa I and posterior seta pv of coxa II modified as thick, blunt spines (9–10); pv of coxae I, av of coxa II, and setae of coxae III–IV normal, slender, pv about half as long as av on coxa III and subequally as short as v on coxa IV. Legs I to IV with chaetotactic formulae of femora, genua, tibiae as described for genus. Leg I with setae pd of trochanter, pd1 of femur and pd2 of genu thicker than other setae on these segments, acutely pointed, slightly spinelike ( Fig. 42 a); other setae normal, slender. Legs II–IV without modified spinelike setae.

ADULT MALE and IMMATURES. Unknown.

Type material. HOLOTYPE: adult female, IRAN, Razavi Khorasan Province, Rahan village, Gonabad town (34° 24' 05" N, 58° 39' 83" E) elevation 1,483 m, 2 May 2007, coll. S. Kazemi, ex. under elytra of unidentified carabid beetle. PARATYPES: none.

Etymology. The specific name honors Shahrooz Kazemi, Tarbiat Modares University, Tehran, who collected material of this and other species of Anystipalpus treated in this paper.

Remarks. The spinelike form of certain setae on the podonotal shield of adult females of Anystipalpus kazemii , which are short, and thick basally but with tapered and acutely pointed apices, is similar to that found in some species of Antennoseius , e.g., A. (Antennoseius) masoviae Sellnick (1943) , A. (A.) bytinskii Costa (1969), A. (A.) sabulicola Bregetova (1977) , A. (A.) maltzevi Eidelberg (1994) , A.(A.) vysotskajae Sklyar (1994) , A. (A.) ponticus Tratsch & Makarova (2008) , and A. (Vitzthumia) bregetovae Chelebiev (1984) . However, females of all of these named species of Antennoseius have fewer such modified setae (maximum five pairs, never including s4), and differ in other respects (multidenticulate rows of deutosternal denticles, movable cheliceral digit with well developed grooved process on paraxial and midventral face), apart from there being little or no information on palpal and subcapitular elongation.

Figures

FIGURES 39 – 42. Figs 39 – 40, Anystipalpus labiduricola n. sp., adult female: 39, tarsus I, dorsal view; 40, tarsus I, detail of distal sensorial region. Figs 41 – 42, Anystipalpus kazemii n. sp., adult female: 41 a, palpus excepting tarsus, dorsal view; 41 b, palptarsus, dorsal view; 42 a, leg I excluding coxa and tarsus, dorsolateral view; 42 b, tarsus I, dorsal view.

FIGURES 43 – 47. Anystipalpus kazemii n. sp., adult female: 43, idiosoma, dorsal aspect; 44, form of denoted modified spinelike setae on anterior dorsal shield; 45, form of denoted unmodified setae on dorsal shields; 46, chelicera, ventrolateral (antiaxial) view; 47, subcapitulum, with superimposed outline of tritosternum. Supernumerary podonotal setae denoted by ‘ x’.

FIGURES 48 – 52. Anystipalpus kazemii n. sp., adult female: 48 – 51, leg coxae, ventral views: 48, coxa I, with enlarged view of modified spinelike seta; 49, coxa II; 50, coxa III; 51, coxa IV; 52, idiosoma, ventral aspect.