Revision of the new world species of Hylurgops LeConte, 1876 with the description of a new genus in the Hylastini (Coleoptera: Scolytinae) and comments on some Palearctic species Author Mercado-Vélez, Javier E. Author Negrón, José F. text Zootaxa 2014 3785 3 301 342 journal article 46054 10.11646/zootaxa.3785.3.1 f3421d1a-3854-42da-95b9-5b47147f25ae 1175-5326 252614 6D6FCCF0-DA35-4F72-9420-07FDF9158E3F Key to the world genera in the Hylastini 1 Procoxae widely separated; elytral scale-like setae absent; elytral sides broadening posteriorly....... Scierus LeConte, 1876 - Procoxae subcontiguous; elytral scale-like setae present; elytral sides nearly parallel............................... 2 2 Surface of elytral disc densely covered by cup-shaped setae; odd numbered interstriae distinctly costate, especially at declivity; pronotal disc surface between large punctures abundantly, minutely punctate ( Fig. 4 a); anterior margin of mesoventrite pointed, distinctly extending anteriorly ( Fig. 2 a)........................................ Pachysquamus new genus - Surface of elytral disc sparsely or densely covered by recumbent, hair-like setae; odd numbered interstriae evenly convex; pronotal disc surface between large punctures impunctate or with medium-sized punctures; anterior margin of mesoventrite slightly rounded or straight, extending anteriorly slightly or not ( Figs. 2 b, c)....................................... 3 3 Third tarsal segment 1.3–1.7× width of second, fifth broadening apically ( Fig. 1 a); pronotal disc with equal or greater number of smaller than larger punctures ( Fig. 4 c); prothorax averaging as long as wide (0.9–1.1); mid-frontal transverse impression usually distinct, without inflated area below ( Fig. 5 a)..................................... Hylurgops LeConte, 1876 - Third tarsal segment 1.0–1.1× width of second, fifth not broadening apically ( Fig.1 b); pronotal disc lacking or with lesser number of smaller than larger punctures ( Fig. 4 b); prothorax averaging 1.2× longer than wide [1.0 (in H. salebrosus ) to 1.3×]; mid-frontal transverse impression absent or indistinct, if present, inflated area below ( Fig. 5 b)...... Hylastes Erichson, 1836