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115 results for “Arrenuridae”
Figure 5 in Geometric and traditional morphometrics for the assessment of character state identity: multivariate statistical analyses of character variation in the genus Arrenurus (Acari, Hydrachnidia, Arrenuridae)
Figure 5. Interlandmark distances (1–36) collected in dorsal (A, B) and posterior (C) views: (A) measurements 1–13 assembled for the idiosoma (distance set 1; (B) distances 14–28 measured between postocularia R2 and dorsoglandularia D2, D3, and D4 (distance set 2); (C) measurements 29–36 between ventroglandularia V1, V2, and V3 (distance set 3). Lines indicate the interlandmark distances sampled and numbers identify each distance, as listed in Table 3. Numbers with asterisks label distances for which the mean was calculated with the measurements of left and right idiosoma sides.
Figure 1 in Geometric and traditional morphometrics for the assessment of character state identity: multivariate statistical analyses of character variation in the genus Arrenurus (Acari, Hydrachnidia, Arrenuridae)
Figure 1. Species of Arrenurus (Megaluracarus) included in the morphometric analyses, in dorsal view: (A) Arrenurus anae; (B) Arrenurus colitus; (C) Arrenurus neoexpansus; (D) Arrenurus zitavus; (E) Arrenurus maya; (F) Arrenurus catoi; (G) Arrenurus tabascoensis; (H) Arrenurus anitahoffmannae; (I) Arrenurus urbanus; (J) Arrenurus olmeca; (K) Arrenurus costeroae. The pairs of postocularia R2 and dorsoglandularia D2, D3, and D4 in (F) are indicated with arrows pointing at gland openings and setae insertions. Scale bars: 100 µm.
Figure 9 in Geometric and traditional morphometrics for the assessment of character state identity: multivariate statistical analyses of character variation in the genus Arrenurus (Acari, Hydrachnidia, Arrenuridae)
Figure 9. Shape variation of dorsoglandularia D4 in dorsal view (data set 4). (A) scatter plot of canonical variate scores (root 1 vs. root 2). (B) overall pattern of shape similarity among 11 Megaluracarus species and two Dadayella species based on Mahalanobis distances computed from the canonical variate analysis. This UPGMA phenogram (unweightedpair grouping method using averages) groups the three character states discovered in the dorsoglandularia. Branches are labelled according to discrimination order defined by the canonical variates. Symbols in the plot and in the phenogram are as listed in Fig. 8.
Figure 10 in Geometric and traditional morphometrics for the assessment of character state identity: multivariate statistical analyses of character variation in the genus Arrenurus (Acari, Hydrachnidia, Arrenuridae)
Figure 10. Shape variation of ventroglandularia V1, V2 and V3 (data set 5). (A) scatter plot of canonical variate scores (root 1 vs. root 2); shape changes relative to the mean shape are shown for both roots. (B) overall pattern of shape similarity among 11 Megaluracarus species and two Dadayella species based on Mahalanobis distances computed from the canonical variate analysis. This UPGMA phenogram (unweighted-pair grouping method using averages) groups the nine character states discovered in the distribution patterns of ventroglandularia. Branches are labelled according to discrimination order defined by the canonical variates. Symbols in the plot and in the phenogram are as follows: solid green triangles, Arrenurus (Dadayella) adrianae; solid red rhombuses, Dadayella aztecus; lilac en-dashes, Arrenurus (Megaluracarus) anae; open blue circles, Megaluracarus anitahoffmannae; horizontal blue lines, Megaluracarus catoi; open red squares, Megaluracarus colitus; solid grey squares, Megaluracarus costeroae; open green rhombuses, Megaluracarus maya; solid black circles, Megaluracarus neoexpansus; blue asterisks, Megaluracarus olmeca; green hyphens, Megaluracarus tabascoensis; open pink triangles, Megaluracarus urbanus; purple plus signs, Megaluracarus zitavus.
Figure 3 in Geometric and traditional morphometrics for the assessment of character state identity: multivariate statistical analyses of character variation in the genus Arrenurus (Acari, Hydrachnidia, Arrenuridae)
Figure 3. Two Arrenurus (Dadayella) species included for comparison with the 11 species of Arrenurus (Megaluracarus) in the morphometric analyses: (A, B) Dadayella adrianae in dorsal and posterior view, respectively; (C, D) Dadayella aztecus in dorsal and posterior view, respectively. The arrows in (C) and (D) are as described in Figs 1F and 2F, respectively. Scale bars: 100 µm.
Figure 4 in New records of water mites of the family Arrenuridae from the Oriental region, with the description of one new species (Acari: Hydrachnidia)
Figure 4. Wuria sumatrensis (K. Viets, 1935), female: A = palp, lateral view; C = chelicera; C = palp, medial view. Scale bar = 100 µm.
FIG. 8. — Thoracophoracarus cooki n in Revisional studies on Thoracophoracarus K. Viets, 1914 (Arachnida, Acari, Hydrachnidia, Arrenuridae)
FIG. 8. — Thoracophoracarus cooki n. sp., paratype ♂ (coll. Gerecke, Tübingen), SEM photographs: A, ventral view; B, lateral view; C, dorsal view; D, excretory pore and gonopore; E, excretory pore (detail of D). Scale bars: 100 μm.
FIGURES 21–22 in Description of a new water mite of the genus Arrenurus (Acari, Hydrachnidia: Arrenuridae) from Chukotka
FIGURES 21–22. Arrenurus chukotkaensis sp. n., female: 21, dorsal view; 22, ventral view. Scale bar: 21–22 = 200 μm.
FIGURES 10–14 in Description of a new water mite of the genus Arrenurus (Acari, Hydrachnidia: Arrenuridae) from Chukotka
FIGURES 10–14. Arrenurus chukotkaensis sp. n., larva: 10, leg I; 11, leg II; 12, leg III; 13, claws of leg I; 14, claws of leg III. Scale bars: 10–12 = 50 μm, 13–14 = 20 μm.
FIGURES 17–20 in Description of a new water mite of the genus Arrenurus (Acari, Hydrachnidia: Arrenuridae) from Chukotka
FIGURES 17–20. Arrenurus chukotkaensis sp. n., male: 17, pedipalp (holotype); 18, IV-Leg-4–6 (paratype); 19, claws of leg I (para- type); 20, claws of leg IV (paratype). Scale bars: 17 = 50 μm, 18=100 μm, 19–20 = 20 μm.
FIGURES 15–16 in Description of a new water mite of the genus Arrenurus (Acari, Hydrachnidia: Arrenuridae) from Chukotka
FIGURES 15–16. Arrenurus chukotkaensis sp. n., male: 15, dorsal view (holotype); 16, ventral view (holotype). Scale bar: 13–14 = 200 μm.
FIGURES 23–31 in Description of a new water mite of the genus Arrenurus (Acari, Hydrachnidia: Arrenuridae) from Chukotka
FIGURES 23–31. Arrenurus,adults; 23–24, Arrenurus viktorovi: 23, idiosoma,dorsal view, 24, idiosoma, ventral view (after Tu- zovskij 1976); 25–26, A. regulator: 25, idiosoma, dorsal view, 26–27, idiosoma,ventral view; 28, pedipalp (after Gerecke et al. 2016); 29, A. lacrimatus, pedipalp (after Mullen 1976); 30–31, A. rufopyriformis, 30, idiosoma, ventral view (after Habeeb 1954; 31, pedipalp (after Mullen 1976); 27, female; 23–26, 28–31, male.
FIGURE 5 in Two new species and one new record species of genus Arrenurus Dugès, 1834 (Acari, Hydrachnidia, Arrenuridae) from China
FIGURE 5. Arrenurus (Arrenurus) unguiculus Zheng & Guo sp. nov., male: A = I-Leg; B = II-Leg; C = III-Leg; D = IV-Leg.
FIGURES 1‒5 in A new species of the genus Arrenurus Dugès, 1834 (Acari: Hydrachnidia: Arrenuridae) from Europe
FIGURES 1‒5. Arrenurus europaeus sp. nov., holotype male. 1 = dorsum; 2 = venter; 3 = lateral view; 4 = palp; 5 = IV-leg-4-6 (swimming setae not illustrated). Scale bars: 1-3 = 200 µm, 4-5 = 50 µm.
Figure 2 in Geometric and traditional morphometrics for the assessment of character state identity: multivariate statistical analyses of character variation in the genus Arrenurus (Acari, Hydrachnidia, Arrenuridae)
Figure 2. Species of Arrenurus (Megaluracarus) included in the morphometric analyses, with cauda in posterior view: (A) Arrenurus anae; (B) Arrenurus colitus; (C) Arrenurus neoexpansus; (D) Arrenurus zitavus; (E) Arrenurus maya; (F) Arrenurus catoi; (G) Arrenurus tabascoensis; (H) Arrenurus anitahoffmannae; (I) Arrenurus urbanus; (J) Arrenurus olmeca; (K) Arrenurus costeroae. The pairs of ventroglandularia V1, V2, and V3 in (F) are indicated with arrows pointing at gland openings and setae insertions. Scale bars: 100 µm.
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