24,127 research outputs found
Stokaxonopsis Cook 1967
No full textGenus Stokaxonopsis Cook, 1967 Stokaxonopsis: Cook, 1974 a, p. 337, figs. 1427–1430. Diagnosis. Larva: Unknown. Adults (modified from Cook 1974 a). Character states of Axonopsis -like mites. Dorsal and ventral shields separated anteriorly; lacking caudal development posteriorly. Dorsal furrow lacking glandularia. Dorsal shield bearing four pairs of glandularia none of which flank excretory pore. Ventral shield lacking ridges originating at lateral end of suture line between third and fourth coxal plates extending anterolaterally to lateral edge of shield; anterior coxal plates relatively wide and lacking hook-like projections; fourth coxal plate lacking glandularia in region between genital field and opening for insertion of fourth leg. Genital field bearing three pairs of acetabula. Suture lines between genital field and ventral shield obliterated. Gnathosoma with mouth opening subterminal in position; gnathosomal apodemes moderately long. Pedipalp tibia relatively long and slender, bearing a long, thick seta on a prominent projection and two sessile slender seta laterally; tarsus shorter than tibia. Fourth leg with proximal segments, especially trochanter, relatively large and stout, but not flattened and with telofemur not reduced in size. Type species. Axonopsis (Stokaxonopsis) besselingi Cook. Species included. Stokaxonopsis besselingi (Cook) (India), S. subterranea (Uchida & Imamura) (Japan). Distribution. India and Japan. Discussion. Cook (1974 a) considered Stokaxonopsis to be a distinct genus and we follow that treatment here.Published as part of Smith, Ian M., Cook, David R. & Gerecke, Reinhard, 2015, Revision of the status of some genus-level water mite taxa in the families Pionidae Thor, 1900, Aturidae Thor, 1900, and Nudomideopsidae Smith, 1990 (Acari: Hydrachnidiae), pp. 111-156 in Zootaxa 3919 (1) on page 144, DOI: 10.11646/zootaxa.3919.1.6, http://zenodo.org/record/24458
Bharatalbia Cook 1967
No full textGenus Bharatalbia Cook, 1967 Bharatalbia: Cook, 1974 a, pp. 363–364, figs. 1605–1612. Bharatalbia: Smith, 1991, pp. 487–496, figs. 31–41. Bharatalbia: Smith & Cook, 1991, p. 577. Bharatalbia: Smith et al., 2001, p. 613, figs. 378, 379. Bharatalbia: Smith et al., 2010, p. 554, figs. 15.379, 15.380. Diagnosis. Larva: Unknown. Adults (modified from Smith 1991): Idiosoma elliptical in shape. Dorsal and ventral shields separate from one another, with ventral shield extending well onto dorsal surface of idiosoma anteriorly and completely surrounding dorsal shield. Dorsal shield with surface reticulate or with an embossed appearance; ventral shield with surface coarsely reticulate and with rough, scaly edges. Dorsal shield bearing one pair of glandularia and lacking or bearing one pair of well-defined longitudinal ridges. Dorsal furrow bearing no glandularia, one pair of glandularia and one pair of setae on pair of anterolateral platelets, or two pairs of glandularia on two pairs of platelets, one anterolateral and other posterolateral. Fourth coxal plate bearing coxoglandularium II, and bearing large projection associated with opening for insertion of fourth leg. Ventral shield bearing one pair of glandularia in region posterior to fourth coxal plates. Genital field subterminal and bearing sixteen to twenty pairs of acetabula; excretory pore borne dorsally on ventral shield; acetabular plates fused with ventral shield in females. First leg of males with distal segments unmodified or slightly modified; third leg of males with tibia bearing or lacking a ventral projection; fourth leg of males with distal segments unmodified or slightly modified. Pedipalp with all segments, but especially femur and tibia, extremely slender and long; tibia lacking ventral projection and bearing two sessile, slender setae distoventrally. Type species. Bharatalbia sucirapalpis Cook. Species included. Bharatalbia (s. s.) sucirapalpis Cook (India), B. (Bharatalbiella) talinapalpis Cook (India), B. (Japonalbia) ibarakiensis Imamura (Japan), B. (J.) cooki Smith (western North America), B. (J.) ohitaensis Imamura (Japan), B. (J.) longipalpis Imamura (Japan), B. (J.) tsugaruensis Imamura (Japan), B. (J.) rotunda Imamura (Japan), B. (J.) surensis Smith (western North America). Distribution. Holarctic (India, Japan, western North America). Discussion. Cook (1974 a) and Smith (1991) considered Bharatalbia to be a distinct genus. Smith & Cook (1991) and Smith et al. (2001, 2010) followed this treatment, as we do here. See Smith (1991) for a discussion of the subgeneric classification of this genus.Published as part of Smith, Ian M., Cook, David R. & Gerecke, Reinhard, 2015, Revision of the status of some genus-level water mite taxa in the families Pionidae Thor, 1900, Aturidae Thor, 1900, and Nudomideopsidae Smith, 1990 (Acari: Hydrachnidiae), pp. 111-156 in Zootaxa 3919 (1) on page 132, DOI: 10.11646/zootaxa.3919.1.6, http://zenodo.org/record/24458
First record of Aedes japonicus japonicus (Theobald, 1901) (Diptera: Culicidae) in Kansas
No full textRogers, D. Christopher, Goldhammer, David S., Garrison, Ingrid, Cook, Amie (2021): First record of Aedes japonicus japonicus (Theobald, 1901) (Diptera: Culicidae) in Kansas. Zootaxa 5040 (4): 598-600, DOI: https://doi.org/10.11646/zootaxa.5040.4.1
Newton's Laws
No full textAuthored and curated by David P. Stern, this series of web pages, part of "From Stargazers to Starships," describes Newton's three laws of motion and the two concepts on which they are based, force and inertia. The author breaks down the page in this fashion: the concept of force, motion against outside resistance, and motion with significant resistance. The author also provides additional links for further study on the life of Issac Newton. A lesson plan for instructors is also provided
FIGURES 23–29 in North American species of Diamphidaxona (Acari: Hydrachnida: Hygrobatidae)
No full textFIGURES 23–29. Diamphidaxona (s. s.) dolichosoma Cook, adults. 23, dorsal shield, female; 24, leg I, female; 25, ventral shield and genital field, male; 26, distal segments of leg IV, male; 27, pedipalp, female; 28, ventral shield and genital field, female; 29, gnathosoma, lateral view, female.Published as part of Smith, Ian M. & Cook, David R., 2006, North American species of Diamphidaxona (Acari: Hydrachnida: Hygrobatidae), pp. 1-44 in Zootaxa 1279 on page 30, DOI: 10.5281/zenodo.17337
FIGURES 23–29 in North American species of Diamphidaxona (Acari: Hydrachnida: Hygrobatidae)
No full textFIGURES 23–29. Diamphidaxona (s. s.) dolichosoma Cook, adults. 23, dorsal shield, female; 24, leg I, female; 25, ventral shield and genital field, male; 26, distal segments of leg IV, male; 27, pedipalp, female; 28, ventral shield and genital field, female; 29, gnathosoma, lateral view, female.Published as part of Smith, Ian M. & Cook, David R., 2006, North American species of Diamphidaxona (Acari: Hydrachnida: Hygrobatidae), pp. 1-44 in Zootaxa 1279 on page 30, DOI: 10.5281/zenodo.17337
Winifred De Witt Van Zantwick-Cook : early twentieth-century life, part 2
No full textIn Part 2 of Dave Seibold's interview with Win Dewitt Vanzantwick-Cook, Mrs. Cook recalls the role of milkmen during Prohibition, taking the passenger ferry the Fannie M. Rose to the Fruitport Pavilion, and labor-saving devices utilized by women in the 1920's. The Cutler House, The Magnetic Mineral Springs and Sanitarium, the Crescent Theater, area float bridges, former Negro slaves, Grand Haven's first strike at the Challenge Stamping & Porcelain Company, and the fire of 1889 are also discussed
C.C. Slaughter's Lazy S Ranch in Cochran and Hockley counties, 1898-1921.
No full textLikely added to or created for the author's thesis: "A Cattle Kingdom on Texas' Last Frontier: C. C. Slaughter's Lazy S Ranch" (Texas Tech University, 1970).Scale approximately 1:337,920 (W 102°59'24"--W 102°18'53"/N 33°50'54"--N 33°24'07")The map illustrates the 250,000-acre holdings of C.C. Slaughter, known as the "Cattle King of Texas," before the ranch's liquidation and subdivision beginning in 1921 (following his death in 1919)
FIGURES 101–106 in North American species of Diamphidaxona (Acari: Hydrachnida: Hygrobatidae)
No full textFIGURES 101–106. Diamphidaxona (s. s.) pallida Cook, scanning electron micrographs of adults. 101, ventral habitus, male; 102, ventral habitus, female; 103, glandularium of coxal plate IV and looped suture line between coxal plates III and IV, male; 104, detail of glandularium of coxal plate IV, male; 105, genital field, male; 106, dissimilar pairs of glandularia posterolaterally on posterior dorsal plate, male.Published as part of Smith, Ian M. & Cook, David R., 2006, North American species of Diamphidaxona (Acari: Hydrachnida: Hygrobatidae), pp. 1-44 in Zootaxa 1279 on page 42, DOI: 10.5281/zenodo.17337
Diamphidaxona Smith & Cook, 2006, sp. nov.
No full textDiamphidaxona (s. s.) sabinalensis sp. nov. (Figs. 30–34) Description. Male with character states of Diamphidaxona (s. s.) (female unknown). Dorsal edge of camerostome rounded anteriorly and not projecting to anterior end of idiosoma (Fig. 31). Pedipalps with tibia bearing one ventral seta and tarsus with ventral spinelike seta bearing 2 strongly recurved denticles ventrally (Fig. 32). Dorsal shield with anterior plate of same width as posterior plate and rounded anteriorly (Fig. 30). Ventral shield with suture lines between third and fourth coxal plates with medial loops deeply arched and lateral loops Ushaped and open anteriorly (Fig. 31). Projections covering insertions of fourth pair of legs with anterior extensions long and directed anteriorly parallel to edges of ventral shield (Fig. 31). Genital field of males fused with ventral shield (Fig. 31). Measurements of holotype: Male (n= 1): Length/width anterior dorsal plate 149 / 238, length/width posterior dorsal plate 297 / 243, length/width ventral shield 436 / 282, length/width genital field 69 / 104. Lengths pedipalp segments: Tr 15, Fe 53, Ge 35, Ti 58, Ta 25. Lengths leg segments: ITr 33, IBFe 53, ITFe 55, IGe 58, ITi 60, ITa 69; IITr 38, IIBFe 53, IITFe 50, IIGe 58, IITi 58, IITa 68; IIITr 38, IIIBFe 40, IIITFe 45, IIIGe 58, IIITi 60, IIITa 75; IVTr 75, IVBFe 70, IVTFe 75, IVGe 85, IVTi 83, IVTa 75. Female. Unknown. Types. Holotype: Male from Can Creek beside East Trail, Lost Maples State Natural Area, near Vanderpool, Bandera Co., Texas on 27 May 1998 by IMS (slide, CNC). Etymology. Named for the Sabinal River of which Can Creek is a tributary. Distribution. Known only from the type locality. Remarks. Adults of Diamphidaxona sabinalensis resemble those of D. dolichosoma and the following four species in that the projections covering the insertions of the fourth pair of legs are long and extend anteriorly parallel to the edges of the ventral shield, but differ in that the ventral spinelike seta on the tarsus of the pedipalp bears two strongly recurved denticles ventrally.Published as part of Smith, Ian M. & Cook, David R., 2006, North American species of Diamphidaxona (Acari: Hydrachnida: Hygrobatidae), pp. 1-44 in Zootaxa 1279 on pages 10-11, DOI: 10.5281/zenodo.17337
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