Trachytes

• Main Authors: Kontschán, Jenő, Starý, Josef
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Mesostigmata; Trachytidae; Trachytes; Canada; Lappland
• Online Access: https://dx.doi.org/10.5281/zenodo.5629700; https://zenodo.org/record/5629700

Key to females of North American species of Trachytes The key is based on the illustrations and descriptions of Błoszyk & Szymkowiak (1996), Huţu (2000), Koch (1841), Trägårdh (1910) and WiŠniewski & Hirschmann (1994). Two species of North American Trachytes are known only from males ( T . krantzi Huţu, 2000 and T . lindquisti Huţu, 2000), and are not included in the key. 1. Vertex with wide and ribbed lateral sections................................................................. 2 - Vertex without wide and ribbed lateral sections.............................................................. 5 2. Inguinal shield free, not fused to ventral shield.............................................................. 3 - Inguinal shield fused to ventral shield...................................................................... 4 3. Surface of genital shield smooth, setae X 4 placed on ventral shield....................... T . aegrota (C. L. Koch, 1841) - Genital shield with reticulate sculptural pattern, setae X 4 situated on small platelets in membranous cuticle................................................................................ T . kaliszewskii Błoszyk & Szymkowiak, 1996 4. Genital shield linguliform, apical part wider than basal part, proportion of apical and basal parts of genital shield 1.3–1.5: 1. 5 - Genital shield axe-shaped, apical part narrower than basal part (3: 1)......................... T . canadiensis Huţu, 2000 5. Pygidial shield rhomboid; surface of genital shield smooth............................... T . aegrotasimilis Huţu, 2000 - Pygidial shield oval; surface of genital shield reticulate....................................... T . californica sp. nov. 6. Genital shield linguliform, anterolateral angles of genital shield rounded......................................... 7 - Genital shield axe-shaped, anterolateral angles of genital shield pointed........................................... 8 7. Ventral shield separated from inguinal and sternal shields; surface of genital shield ornamented by irregular pits............................................................................. T . balazyi WiŠniewski & Hirschmann, 1994 - Ventral shield fused with inguinal and sternal shields; surface of genital shield smooth............ T . marilynae Huţu, 2000 8. Inguinal shield fused to ventral shield; apical part of genital shield relatively wide (apical: basal = 1:1.3– 2).............. 9 - Inguinal shield separated from ventral shield; apical part of genital shield narrow (apical: basal = 1: 3)....... T . axe sp. nov. 9. Sternal shield fused to inguinal and ventral shields; ventral and dorsal idiosoma ornamented by irregular pits.............................................................................................. T . minima Trägårdh, 1910 - Sternal shield separated from inguinal and ventral shield; surface of ventral and dorsal idiosoma without irregular pits.......................................................................................... T . nortoni Huţu, 2000 : Published as part of Kontschán, Jenő & Starý, Josef, 2012, New Uropodina (Acari: Mesostigmata) from California, USA, pp. 26-38 in Zootaxa 3210 on page 37, DOI: 10.11646/zootaxa.3210.1.2, http://zenodo.org/record/280198 : {"references": ["Bloszyk, J. & Szymkowiak, P. (1996) Trachytes kaliszewskii, n. sp. (Acari: Uropodina) from the Great Basin (Utah, USA), with remarks on the habitats and distribution of the members of the genus Trachytes. Great Basin Naturalist, 56, 59 - 72.", "Hutu, M. (2000) Neue Trachytes - Arten (Anactinotrichida: Uropodina: Trachytidae) aus Canada. Acarologia, 41, 5 - 24.", "Koch, C. L. (1841) Deutschlands Crustaceen, Myriapoden und Arachniden. Heft. 32. F. Pustet, Regensburg. 222 pp.", "Tragardh, I. (1910) Acariden aus dem Sarekgebirge. Naturwissenschaftliche Untersuchungen des Sarekgebirge in Schwedisch - Lappland, 4, 375 - 586.", "Wisniewski, J. & Hirschmann, W. (1994) Neue Uropodina-Arten (Acarina) aus USA. Acarologia, 35, 83 - 96."]}