Revision of the Bark Beetle Genera Within the Former Cryphalini (Curculionidae: Scolytinae) Author Johnson, Andrew J. School of Forest Resources and Conservation, University of Florida, Gainesville, FL 32611, andrewjavanjohnson@gmail.com Author Hulcr, Jiri School of Forest Resources and Conservation, University of Florida, Gainesville, FL 32611, Author Knížek, Miloš Department of Forest Protection Service, Forestry and Game Management Research Institute, Strnady, Jíloviště, Praha 5, Zbraslav CZ- 15600, Czechia, Author Atkinson, Thomas H. Texas Natural History Collections, Integrative Biology, University of Texas at Austin, Austin, TX 78712, Author Mandelshtam, Michail Yu. Department of Forest Protection, Wood Science and Game Management, Saint-Petersburg State Forest Technical University named after S. M. Kirov, Institutskii per., 5, 194021 Saint-Petersburg, Russia, Author Smith, Sarah M. Department of Entomology, Michigan State University, East Lansing, MI 48824, Author Cognato, Anthony I. Department of Entomology, Michigan State University, East Lansing, MI 48824, Author Park, Sangwook Research Institute of Forest Insect Diversity, Namyangju 12113, South Korea, Author Li, You School of Forest Resources and Conservation, University of Florida, Gainesville, FL 32611, Author Jordal, Bjarte H. University Museum of Bergen, University of Bergen, P. O. 7800, 5020 Bergen, and text Insect Systematics and Diversity 2020 2020-05-31 4 3 1 1 81 journal article 22148 10.1093/isd/ixaa002 be792f86-9e77-414c-9e2f-767704ff704e 2399-3421 3826789 Xyloterini LeConte, 1876 =Xyloteri LeConte, 1876: 356 . =Xyloteroideae Lindemann, 1877: 165 . =Xyloteridae Eichhoff, 1878b: 411 . =Trypodendrinae Trédl, 1907: 70 (Unavailable name). =Xyloterinae Nüsslin, 1911a: 432 . = Xyloterini Reitter, 1913: 28 . =Xyloterina Balachowsky, 1949: 196 . =Trypodendrina Nunberg, 1954: 16 . =Trypodendrini Browne, 1961: 45 . =Trypodendroninae Wood, 1978: 114 . Type of tribe Xyloterus Erichson, 1836 . Diagnosis Eye divided. Mycangia present on females. Female Female: Frons typically convex. Eye completely divided. Antennae with five funicle segments. Pronotum in dorsal view broadly rounded anteriorly, mostly with marginal asperities. Lateral margins of pronotum rounded. Vestiture typically with only hair-like setae. All tarsal segments cylindrical. Tibiae flattened with socketed denticles extending over at least apical quarter. A fungus-carrying organ (mycangium) visible as a setose opening on the latero-ventral side of the prothorax on the hypomeron. Male Similar to female in most characters, but pronotum in dorsal view quadrate and in Trypodendron , frons typically concave. Penis apodemes of a similar length or longer than penis body, separated at apex. Tegmen with a median apodeme or no apodemes, open dorsally. Spiculum gastrale reduced, much thinner than the thickness of penis apodemes. Basal sclerites complex and developed. Males of Xyloterinus politus are reportedly flightless and do not leave the natal gallery. Distribution Holarctic and Southeast Asia. Remarks All thorough molecular studies to date have indicated a strongly supported nested position among several former Cryphalini genera, sister to Coriacephilus or Cryphalus . We note that Indocryphalus may be paraphyletic based on the two taxa included in some molecular studies and with morphology ( Cognato et al. 2015 ). Included genera Indocryphalus Eggers, 1939 ; Trypodendron Stephens, 1830 ; Xyloterinus Swaine, 1918 .