Hylastes is a genus of crenulate bark beetles in the family Curculionidae.
Ecology Hylastes is one of the most common genus of bark beetle observed in loblolly pine (Pinus taeda). Members of this genus are potentially vectors (primarily Hylastes nigrinus) for fungal species of the genus Leptographium (L. terebrantis and L. serpens). They allow for these fungi to spread into the roots of the loblolly pine trees causing high rates of mortality. This is currently considered an emerging forest health issue in the southeastern region of the United States.
Evolutionary history There have been fossilized evidence of bark beetles originateing during the early Cretaceous period. Hylastes perkovskyi is an extinct species that was found in Rovno amber. This discovery of this species suggest that Hylastes evolved during the Eocene epoch.
Species There are currently more than 90 species that belong to the genus Hylastes:
Hylastes alni Niisima, 1909 Hylastes alternans Chapuis, 1869 Hylastes ambiguus Blandford, 1894c Hylastes americanus Wickham & H.F., 1913 Hylastes anatolicus Pfeffer (Knízek & Pfeffer in), 1994c Hylastes angustatus (Herbst & J.F.W., 1793) Hylastes angusticollis Eggers, 1929c Hylastes asper Swaine & J.M., 1917 Hylastes asperatus Wood, 1975 Hylastes ater Erichson, 1836 Hylastes aterites Schedl, 1947 Hylastes aterrimus Eggers Hylastes attenuatus Erichson, 1836 Hylastes batnensis Brisout & C., 1883 Hylastes bonvouloiri Chapuis, 1869 Hylastes brunneus Erichson, 1836 Hylastes canadensis Blackman, 1941 Hylastes carbonarius Fitch, 1858 Hylastes clavus Wollaston, 1854 Hylastes contractus Chapuis, 1869 Hylastes corticiperda Erichson, 1836 Hylastes cristatus Mannerheim, 1853 Hylastes criticus Eichhoff, 1868c Hylastes cunicularius Erichson, 1836 Hylastes exilis Chapuis, 1869 Hylastes fallax Wichmann & H.E., 1911a Hylastes flavicornis Lindberg & Har., 1950 Hylastes flohri Wood, 1966b Hylastes fulgidus Blackman, 1941 Hylastes gergeri Eggers, 1911a Hylastes gracilis LeConte, 1868 Hylastes granosus Chapuis, 1869 Hylastes granulatus LeConte, 1868 Hylastes graphus Letzner (Duftschmidt in), 1891 Hylastes himalabietis Beeson, 1961 Hylastes himalayensis Stebbing & E.P., 1909 Hylastes humilis Blanchard, 1851 Hylastes imitator Reitter, 1900 Hylastes incomptus Blandford, 1897a Hylastes interstitialis Chapuis, 1875 Hylastes lifuanus Fauvel, 1872 Hylastes linearis Erichson, 1836 Hylastes longicollis Swaine, 1918 Hylastes longifoliae Stebbing & E.P., 1908b Hylastes longipennis Blandford Hylastes longipilus Reitter, 1894a Hylastes longus Leconte, 1876 Hylastes lowei Paiva, 1861b Hylastes macer LeConte, 1868 (root-feeding bark beetle) Hylastes mexicanus Wood, 1967 Hylastes minutus Blackman, 1941 Hylastes niger Wood, 1974a Hylastes nigrinus LeConte, 1868 (Douglas fir root bark beetle) Hylastes nitidus Swaine & J.M., 1917 Hylastes obscurus Chapuis, 1875 Hylastes opacus Erichson, 1836 Hylastes parallelus Chapuis, 1875 Hylastes parvus Blackman, 1941 Hylastes peregrinus Chapuis, 1869 †Hylastes perkovskyi Hylastes piceae Pfeffer, 1944b Hylastes pinicola Bedel, 1888b Hylastes planirostris Chapuis, 1869 Hylastes plumbeus Blandford, 1894d Hylastes porculus Erichson, 1836 Hylastes porosus LeConte, 1868 Hylastes pumilus Mannerheim, 1843 Hylastes pupillatus Hansen, V. (Eggers in), 1955 Hylastes pusillus Blackman, 1941 Hylastes retifer Wood, 1982a Hylastes rotundicollis Reitter, 1894a Hylastes ruber Swaine, 1915 Hylastes rufipes Eichhoff, 1868c Hylastes salebrosus Eichhoff, 1868 Hylastes scaber Swaine & J.M., 1917 Hylastes scabripennis Zimmermann, 1868 Hylastes scandinavieus Lekander, 1965b Hylastes scobinosus Eichhoff, 1868c Hylastes septentrionalis Eggers, 1923b Hylastes simplex Rey, 1892b Hylastes subalpinus Eggers, 1940h Hylastes subopacus Blackman, 1941 Hylastes substriatus Strohmeyer & H Hylastes suspectus Bright, 1972d Hylastes swainei Eggers, 1934b Hylastes techangensis Tsai & Huang, 1964a Hylastes tenuis Eichhoff, 1868 Hylastes variegatus Blandford, 1897a Hylastes variolosus Perris, 1852 Hylastes vastans Chapuis, 1869 Hylastes webbi Blackman, 1941 Hylastes yukonis Fall, 1926
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