Ptenothrix
Ptenothrix is a genus of globular springtails in the family Dicyrtomidae. There are about 92 described species in Ptenothrix worldwide. The genus is defined by a cluster of traits, most pertaining to chaetotaxy. These traits are as follows: large abdomen without a protuberance, with a full set of bothriotricha and posteriorly covered with small acanthoid chaetae, head and abdomen with at least some large acanthoid chaetae, hind tibiotarsus with 2–3 modified serrated chaetae, claws usually with no tunica, outer and inner chaetae on the dens often serrated, and no neosminthuroid chaetae.
Species
These species belong to the genus Ptenothrix:Ptenothrix albosignata Stach, J, 1957:90Ptenothrix alveola Janssens F, 2020:mihiPtenothrix annulata Lin & Xia, 1985Ptenothrix argentina Delamare Deboutteville & Massoud, 1963:281Ptenothrix atra Börner, 1906Ptenothrix australis Snider, RJ, 1990:247Ptenothrix beta Christiansen, K & Bellinger, P, 1998Ptenothrix blidana Bretfeld, G, 2001:119Ptenothrix borincana Soto-Adames, FN, 1988:65Ptenothrix brasiliensis Delamare Deboutteville & Massoud, 1963:285Ptenothrix brouquissei Nayrolles, 1989Ptenothrix californica Christiansen, K & Bellinger, P, 1998:1408Ptenothrix castanea Snider, RJ, 1985Ptenothrix catenata Richards, 1968Ptenothrix cavicola Cassagnau, P et Delamare Deboutteville, C, 1955:392Ptenothrix ciliata Stach, J, 1957:102Ptenothrix ciliophora Yosii, R et Lee, C-E, 1963:17Ptenothrix corynophora Börner, C, 1909:130Ptenothrix curvilineata Snider, RJ, 1990:256Ptenothrix dalii Zeppelini D, Ferreira AS et Oliveira JVLC in Oliveira, JVLC, Ferreira, AS et Zeppelini, D, 2020:2Ptenothrix deharvengi Nayrolles, 1989Ptenothrix delongi Christiansen, K & Bellinger, P, 1998:1409Ptenothrix denticulata Börner, C, 1909:131Ptenothrix dinghuensis Lin & Xia, 1985Ptenothrix dominicana Mari Mutt, JA, 1977:285Ptenothrix dorsalis Linnaniemi, 1912Ptenothrix fiscellata Handschin, 1925Ptenothrix flavescens Ptenothrix fuscamaculata Bretfeld & Trinklein, 2000Ptenothrix gaoligongshanensis Itoh, R et Zhao, L-J, 2000:156Ptenothrix gibbosa Börner, C, 1906:185Ptenothrix gracilicornis Börner, 1903Ptenothrix hawaiiensis Snider, RJ, 1990:74Ptenothrix higashihirajii Yosii, R, 1965:67Ptenothrix higumai Yosii, R, 1965:68Ptenothrix himalayensis Yosii, 1966Ptenothrix huangshanensis Chen, J-X et Christiansen, K, 1996:587Ptenothrix iriomotensis Uchida, H, 1965:92Ptenothrix janthina Börner, C, 1909:132Ptenothrix keralae Prabhoo, 1971Ptenothrix koreanensis Jo, S-H et Park, K-H, 2023:126Ptenothrix kuraschvilii Djanaschvili, 1970Ptenothrix lactea Uchida, 1953Ptenothrix leucostrigata Stach, J, 1957:98Ptenothrix macomba Wray, 1967Ptenothrix maculosa Ptenothrix marmorata Mills, HB, 1934Ptenothrix mongolica Yosii, 1954Ptenothrix monochroma Yosii, R et Lee, C-E, 1963:20Ptenothrix narumii Uchida, 1940Ptenothrix nigricornis Stach, J, 1957:91Ptenothrix ocellata Ptenothrix palawanensis Yosii, R, 1969:223Ptenothrix palmata Stach, J, 1957Ptenothrix palmisetacea Lin & Feng, 1985Ptenothrix plumiseta Kang J-S et Lee B-H in Kang, J-S, Lee, B-H et Park, K-H, 2005:235Ptenothrix quadrangularis Ptenothrix renateae Snider, RJ, 1985Ptenothrix reticulata Stach, J, 1957:105Ptenothrix rubra Bretfeld & Trinklein, 2000Ptenothrix ryoheii Uchida, 1953Ptenothrix saxatilis Yosii, R et Lee, C-E, 1963:19Ptenothrix setosa Handschin, B, 1929:125Ptenothrix simplificata Stach, 1957Ptenothrix sinensis Lin & Feng, 1985Ptenothrix tateyamana Uchida, H, 1958:76Ptenothrix texensis Stach, J, 1957:80Ptenothrix tranvansoii Yoshii, 1994Ptenothrix tricycla Uchida, 1953Ptenothrix tsutsuii Yosii, R, 1955:398Ptenothrix unicolor Folsom, 1928Ptenothrix utingae Arlé & Guimaraes, 1976Ptenothrix vinnula Uchida, H, 1957:26Ptenothrix violacea Handschin, 1929Ptenothrix violaceopa Hüther, 1967Ptenothrix vittata Folsom, 1934Ptenothrix yakushimana Yosii, R, 1965:65Ptenothrix yunnana Itoh, R et Zhao, L-J, 2000:159