Kongsbergia, Lundblad, 1953

Radwell, Andrea J. & Smith, Ian M., 2012, North American members of the reticulata-like species group of the water mite genus Kongsbergia (Acari: Hydrachnidiae: Aturidae), Zootaxa 3540, pp. 1-49 : 31-35

Kongsbergia (s.s.) robisoni Radwell and Smith, 2011

( Figs. 57–63, 101, 102)

Kongsbergia robisoni Radwell et al. 2011 . Description. Character states of the robisoni subgroup. Male: Idiosoma in dorsal view nearly round to shieldshaped and with sides subparallel between humeral region and midlength, tapering posteriorly. Dorsal shield ( Figs. 57, 101) with anterior edge crenellate and with a deep medial depression bearing a large dome-shaped projection; with edge linear or slightly convex in area between eyes and humeral region and with a modest to strong humeral angle; reticulate pattern moderately developed and arranged in series of subparallel longitudinal lines in area between postocular setae; anteromedial hump large, lateral ridges well developed and sinuate, curving inward near midlength and then outward to meet lateral edges of shield posterolaterally to outline an elevated medial area extending posteriorly from anteromedial hump and surrounded by deeply depressed areas laterally and posteriorly; ridge bearing excretory pore large and prominent; medial pair of glandularia posterior to the postocular setae anterior to lateral pair of glandularia in same region ( Fig. 57, arrows); three pairs of slender setae on posterior edge; variable in color from colorless to yellowish with bright orange or pink patches medially and dark black patches anteriorly and posterolaterally. Ventral shield ( Fig. 58) with projections associated with insertions of fourth legs well developed. Pedipalp ( Fig. 59) with femur bulbous and bearing one large and two very small papillate projections ventrally. Fourth leg ( Fig. 60) with segments and setae as illustrated. Female: Dorsal shield ( Figs. 61, 102) and ventral shield ( Fig. 62) similar in shape, sculpturing and color to that of male, but dorsal ridges relatively weakly developed and projections covering insertions of fourth leg smaller. Pedipalp ( Fig. 63) with femur not enlarged and tibia proportionately thicker than in male. Measurements: Male (n=6): Dorsal shield length 310–348(346), width 270–290(274); ventral shield length 350–386(386), width 284–294(288). Lengths pedipalp segments: Tr 21–24(24), Fe 74–100(92), Ge 28–33(33), Ti 85–98(95), Ta 30–33(30). Pedipalp femur height 70–95(86). Length of leg segments: ITr 40–48(43), IBFe 55–61(60), ITFe 52–57(57), IGe 59–65(65), ITi 81–90(89), ITa 88–99(99); IITr 38–45(45), IIBFe 51–56(56), IITFe 52–57(55), IIGe 63–72(66), IITi 83–90(90), IITa 88–99(99); IIITr 35–36(36), IIIBFe 49–60(51), IIITFe 55–64(62), IIIGe 75–82(82), IIITi 89–98(98), IIITa 98–108(107); IVTr 69–7 (75), IVBFe 86–95(89), IVTFe 65–75(74,) IVGe 72–80(79), IVTi 76–85(80), IVTa 95–101(100). Female (n =6): Dorsal shield length 348–368, width 278–298; ventral shield length 348–372, width 276–296. Length of pedipalp segments: Tr 23–25, Fe 65–69, Ge 28–32, Ti 99–110, Ta 29–32. Length of leg segments: ITr 28–38, IBFe 48–55, ITFe 43–49, IGe 52–56, ITi 68–73, ITa 70–80; IITr 25–38, IIBFe 48–55, IITFe 43–48, IIGe 52–59, IITi 65–73, IITa 75–87; IIITr 28–37, IIIBFe 45–53, IIITFe 47–53, IIIGe 62–68, IIITi 72–86, IIITa 80–90; IVTr 55–62, IVBFe 67–73, IVTFe 54–62, IVGe 69–74, IVTi 80–88, IVTa 88–92.

Specimens examined. CANADA: Ontario: Grey Co.: Saugeen River at Durham Conservation Area , Durham , 14 August 1989, IMS – 1 male (slide) . USA: Arkansas: Boone Co.: Crooked Creek beside Rt. 7, 1 mile south of Harrison , 30 August 1949, RDM – 3 male, 4 female paratypes (slides). Franklin Co. : Cass, Mulberry River at High Bank Canoe Launch off Rt. 215, 9.4 km west of Rt. 103, 9 September 2006, IMS – 1 female paratype (slide), 3 male, 7 female paratypes (GAW); 29 September 2008, IMS – 8 male, 5 female paratypes (GAW). Garland Co. : South Fork of Saline River beside Rt. 7, 3 miles south of Mountain Valley , 11 May 1997, DRC – 2 females (slides). Howard Co. : Cossatot River in State Park across from Visitor Center, 13 June 2008, AJR and B.G. Crump – 1 male, 1 female paratypes (GAW). Johnson Co. : Mulberry River beside Rt 103 ca. 20 km north of Harmony , 30 June 1987, IMS – 6 male, 7 female paratypes (slides), 3 male, 11 female paratypes (GAW). Montgomery Co. : Ouachita River at Pine Ridge, 5 October 2007, AJR and H.W. Robison – 11 males, 8 females (slides); 19 October 2007, AJR and P.F. Justus – 2 males (slides). Caddo River at Caddo Gap, 6 October 2007, AJR and H.W. Robison – 2 male paratypes (slides). Willow Brook at Polk Road 42 and County Road 402 in Mena, 19 October 2007, AJR – 1 female paratype (slide). Montgomery Creek at Crystal Recreation Area off Forest Road 177, 18 September 2008, IMS – 1 male paratype (GAW). Newton Co. : Mill Creek at Marble Falls beside Rt. 7, 10 miles south of Harrison , 1 September 1949, RDM – 4 male, 1 female paratypes (slides). Buffalo National River at Pruitt, 20 July 2006, AJR – 2 male, 5 female paratypes (slides). Buffalo National River at Ponca, 26 July 2006, AJR – 1 male paratype (slide); 3 October 2008, IMS – 1 female paratype (GAW); 28 July 2009, AJR – 1 male paratype (GAW). Polk Co. : Blaylock Creek at Bard Springs Recreational Area , 24 July 2008, AJR and B.G. Crump – 2 male paratypes (slides); 12 March 2009, AJR and B.G. Crump – 1 female paratype (GAW); 12 May 2009, AJR and B.G. Crump – 1 male paratype (GAW); 11 August 2009, AJR – 1 male, 1 female paratypes (GAW). Stream below Abernathy Spring beside Hwy 8 near Big Fork, 5 October 2007, AJR and H.W. Robison – 1 female paratype (slide); 23–26 September 2008, IMS – 3 male paratypes (GAW). East Saline Creek beside Forest Road 38, 0.6 km. north of Shady Lake Recreation Area , 24 September 2008, IMS – 2 male paratypes (GAW). Searcy Co. : Tomahawk Creek beside Tomahawk Slab Road near Gilbert, 6 September 2006, IMS – 1 male holotype (slide), 2 male, 2 female paratypes (slides), 3 male, 1 female paratypes (GAW); 27 September 2009, AJR and V. Kaliki – 1 male, 1 female paratypes (GAW) . Florida: Levy Co.: Gulf Hammock tributary of Waccasassa River , 26 December 1955, DRC – 2 males, 1 female (slides) . Illinois: Kankakee Co. Rock Creek at Kankakee River State Park beside Rt. 102 northeast of Kankakee , 9 September 1991, IMS – 1 male, 2 females (slides) . Michigan: Barry Co.: Thornapple River at Hastings , 29 July 1949, DRC – 7 males, 2 females (slides); 30 August 1949, DRC – 1 female (slide). Gratiot Co. : Pierre River , 2 October 1949, DRC – 1 male, 4 females (slides) . Mississippi: Attala Co.: Hurricane Creek beside Natchez Trace Parkway , 2 km south of Rt. 12, Kosciusko, 3 October 2005, IMS – 2 males, 1 female (slides) . Missouri: Barry Co.: Roaring River State Park 7 miles south of Cassville , Roaring River , 26–27 August 1949, RDM – 1 male, 4 female paratypes (slides). Crawford Co. : Huzzah Creek at Red Bluff Campground east of Davisville , 26 June 1987, IMS – 2 male, 2 female paratypes (slides). Dent Co. : Meramec River beside Rt. 19 ca. 18 km. northeast of Salem (Short Bend access), 1 July 1961, DRC – 1 female paratype (GAW), 26 June 1987, IMS – 4 male, 4 female paratypes (slides), 6 male, 7 female paratypes (GAW); 22 November 2009, AJR – 2 female paratypes (GAW). Greene Co. : Pearson Creek at East Farm Road 132 bridge, 23 October 2009, AJR and J.A. Hinsey – 1 male, 1 female (slides). Oregon Co.: Eleven Point River beside Rt. 19 north of Greer , gravel in riffle, 28 June 1987, IMS – 10 male, 11 female paratypes (slides), 3 male, 9 female paratypes (GAW). Eleven Point River at Cane Bluff access, 22 November 2009, AJR – 2 male paratypes (GAW). Shannon Co. : Jacks Fork River , Alley Spring State Park , 13 July 1960, DRC – 1 male paratype (slide). Current River , Round Spring State Park , 25 July 1960, DRC – 6 male, 2 female paratypes (slides), 5 female paratypes (GAW); 30 June 1961, DRC – 6 male, 3 female paratypes (slides), 3 female paratypes (GAW); 29 June 1987, IMS – 1 male, 3 female paratypes (slides), 10 female paratypes (GAW). Wayne Co. : Small stream near Sam A. Baker State Park , 8 July 1960, DRC – 1 female paratype (GAW). St. Francis River , Sam A. Baker State Park , 27 June 1987, IMS – 1 male paratype (GAW). Webster Co. : Small stream 6 miles west of Marshfield , 24 August 1949, RDM – 1 male paratype (slide). James River 6 miles south of Marshfield , 24 August 1949, RDM – 1 male paratype (slide). Finley Creek 20 miles south of Marshfield , 25 August 1949, RDM – 15 male, 6 female, 3 deutonymph paratypes (slides) . Oklahoma: Delaware Co.: Stream beside Rt. 116 ca. 1.6 km west of Colcord , 7 July 1961, DRC – 1 male (slide) . Texas: Polk Co.: Menard Creek at Hwy 943, Big Thicket National Preserve , 21 May 2010, AJR – 1 male (slide). Menard Creek at Holly Grove off Hwy 2798, Big Thicket National Preserve, 23 May 2010, AJR – 1 male, 1 female (slides) .

Distribution. Central and eastern North America (Ontario, Arkansas, Florida, Illinois, Michigan, Mississippi, Missouri, Oklahoma and Texas).

Remarks. Males of Kongsbergia robisoni differ from those of K. texana sp. nov. and K. floridana sp. nov. in having the medial pair of glandularia posterior to the postocular setae on the dorsal shield anterior to, rather than at the same level as or posterior to, the lateral pair of glandularia in the same region.