Hylurgops longipillus, Reitter, 1895

Mandelshtam, M. Yu. & Petrov, A. V., 2019, A key to species of the tribe Hylastini LeConte, 1876 (Coleoptera: Curculionidae: Scolytinae) from Russia and adjacent countries, Russian Entomological Journal 28 (4), pp. 389-399 : 397

4. H. longipillus Reitter, 1895 .

= likiangensis Tsai et Hwang, 1964 .

DISTRIBUTION. Russia: Amur Prov., Khabarovsk Terr., Primorsk Terr., Sakhalin Island, Kamchatka Prov. (imported with wood); Asia ( China, including Northeast provinces: Heilongjiang, Liaoning, etc.; Japan, North Korea) .

HOSTS. Pinus koraiensis , less commonly on Picea jezoensis , Pinus sp. , and Larix sp.

NOTES. All dissected specimens of H. longipillus were found to be males and all dissected specimens of H. spessiwzeffi were females. Profound sexual dimorphism is untypical for the genus Hylurgops . H. longipillus is characterized by stout body and long erect declivital hair-like setae and H. spessiwzeffi — by slim body and minute semi recumbent declivital setae. These forms as a rule are collected together, have the same distribution and same host-plants in the Russian Far-East. Further observations in the nature and DNA analysis is required to confirm the synonymy of H. longipillus and H. spessiwzeffi that is quite probable. H. longipillus was erroneously synonymized with H. imitator by Knížek [2011], but as have demonstrated investigation of type from NHMB, H. imitator is a synonym of H. interstitialis and not of H. longipillus .