New species and new records of mites of the genus Stigmaeus (Acari: Prostigmata: Stigmaeidae) from Crimea Author Khaustov, Alexander A. text Zootaxa 2014 3794 2 237 253 journal article 45867 10.11646/zootaxa.3794.2.3 b41b7c62-2811-44b0-892a-3419b2ce687f 1175-5326 228091 6F9929C7-DE97-455A-B4A7-A2D678390E14 Stigmaeus kuznetsovi Khaustov sp. nov. ( Figs. 10–17 , 29 ) Description. FEMALE. Length of idiosoma 430 (420–450), width 297(300–320). The chaetotaxy of body and legs as in S. mitrofanovi sp. nov. Idiosomal dorsum ( Fig. 10 ). Central plate with 2 pairs of setae c 1 and d 1; intercalary plates paired. All plates coarsely reticulated; Postocular bodies of medium size, smooth ( Fig. 29 ). Eyes absent. Striation anterolateral to propodosomal plate without microtubercles. All dorsal setae barbed. Setae ve , sce , and c 2, longer than others and pointed. Other dorsal setae distinctly blunt-ended and barbed in distal half. Setae e 2 distinctly longer than d 2, and only slightly shorter than sce and c 2. Ratio ve/sci = 2.0. Length of dorsal setae: vi 74 , ve 106, sci 51, sce 96, c 1 61, c 2 97, d 1 61, d 2 67, e 1 56 , e 2 89 , f 1 79, h 1 68, h 2 69. Distances between setae: vi-vi 25, veve 69, sci-sci 122, c 1 -c 1 80, d 1 -d 1 80, h 1 -h 1 46, h 1 -h 2 33. Idiosomal venter ( Fig. 11 ). All ventral plates without reticulation. All ventral setae pointed, except for h 1 which is blunt-ended and strongly barbed in distal half; setae ag 3, ps 2, and ps 3 barbed, other ventral setae smooth. Length of ventral setae: 1 a 25, 1 b 28, 1 c 44, 2 b 43, 2 c 42, 3 a 31, 3 b 30, 3 c 23, 4 a 25, 4 b 27, 4 c 27, ag 1 23, ag 2 29, ag 3 36, g 19, ps 1 45, ps 2 30, ps 3 30. Gnathosoma ( Figs. 12–13 ). Tibial claw large. All setae on femur, genu and tibia of palps are pointed, except for spine-like l’ on palpal tibia ( Fig. 12 ). Palpal supracoxal setae ( elcp ) peg-like. Rostrum of subcapitulum ( Fig. 13 ) relatively short and wide. Subcapitular setae smooth and pointed. Basal part of subcapitulum without distinct reticulation. Length of subcapitular setae: m 33, n 29, or 1 19, or 2 29.Legs ( Figs. 14–17 ). Empodial raylets pointed. Leg segments without reticulation. Leg I ( Fig. 14 ). Coxae I posterodorsally with peg-like leg supracoxal setae ( elcl ). Setae l” , d on genu and l” , d on femur blunt-ended and distinctly barbed in distal half. Seta d (47) on genu subequal to seta k (46). Solenidion ω relatively short (23), finger-shaped; solenidion φ (15) baculiform, φp attenuate (22). Leg II ( Fig. 15 ). Setae d on genu and d , l” on femur blunt-ended and distinctly barbed in distal half. Solenidion ω (22) finger-shaped; solenidion φ (24) attenuate. Seta k short (10), about 4 times shorter than setae d on genu. Leg III ( Fig. 16 ). Solenidion ω (13) finger-shaped; solenidion φ (19) attenuate. Setae d and l’ on femur blunt-ended and distinctly barbed. Leg IV ( Fig. 17 ). Solenidion ω (12) finger-shaped; solenidion φ (18) attenuate. Setae d on genu and d on femur blunt-ended and distinctly barbed. Seta d on tibia of medium length (65) and barbed, 1.4 times longer than l’ on tibia. Type material. Female holotype , slide № AK 090495 , and 2 female paratypes , CRIMEA : Yalta mountain pasture, about 1200 m .a.s.l., from nest of Microtus socialis (Pallas) ( Rodentia : Cricetidae ), 9 April 1995 , coll. Khaustov A.A.. Etymology. The new species is named after the late well-known acarologist Prof. N.N. Kuznetsov for his great contribution to acarology. FIGURES 10–11. Stigmaeus kuznetsovi Khaustov sp. nov. , female: 10—idiosomal dorsum, 11—opisthosomal venter. FIGURES 12–13. Stigmaeus kuznetsovi Khaustov sp. nov. , female: 12 –gnathosoma dorsally, 13—subcapitulum. Differential diagnosis. The new species is most similar to S. siculus ( Berlese, 1883 ) by the presence of two pairs of setae on the central plate, six and five setae on femora I and II, respectively, one pair of the genital setae, medium size postocular bodies, anterolateral striae on the prodorsum without microtubercles, peg-like supracoxal palpal and leg I setae, and by the absence of eyes. It differs from S. siculus by setae sce similar in shape and length to ve and c 2, and about 1.5–2 times longer than other dorsal idiosomal setae (vs. relatively short, blunt-ended, distinctly barbed in distal half, similar in shape and length to setae c 1 and d 1 which are 1.5–2 times shorter than ve and c 2 in S. siculus ); the new species also differs by having setae e 2 distinctly longer than d 2 and only slightly shorter than c 2 (vs. setae e 2 are subequal to d 2 and about 1.5 times shorter than c 2 in S. siculus ).