A new species of Mesostenus Gravenhorst (Hymenoptera: Ichneumonidae: Cryptinae) from Colombia Author Herrera-Florez, Andres Fabian Author Diaz, John Alexander Pulgarin Author Quiroz-Gamboa, Jhon A. text Zootaxa 2017 4306 4 593 600 journal article 32361 10.11646/zootaxa.4306.4.9 4ce144af-ab90-450c-b418-d1b90717c03b 1175-5326 845235 E17F3DBF-C7CA-4EC1-BCEB-2783C1BFDF84 Key to the group of species of Mesostenus with black and white metasoma 1 Epomia present.......................................................................................2 - Epomia absent........................................................................................5 2 Propodeal apophyses absent.............................................................. M. modicus Cresson - Propodeal apophyses present............................................................................3 3 Propodeal apophyses distinct but short and flat, about 0.5 × as long as its basal width...... M. pallipleuris Kasparyan & Ruiz - Propodeal apophyses conspicuously projected...............................................................4 4 Clypeus with lower margin almost straight; apex of apophyses depressed. Fore wing 7.8 mm ....... M. trjapitzini Kasparyan - Clypeus forming a rounded pyramid with the apex in the lower 0.3; its apical margin weakly arched. Fore wing 5.4–7.0 mm length...................................................................... M. laevicoxis Kasparyan& Ruiz 5 Posterior transverse carina complete........................................... M. hypsipilaphagous Herrera-Florez - Posterior transverse carina centrally interrupted..............................................................6 6 Propodeal apophyses conspicuously projected.................................................. M. euoplus Porter - Propodeal apophyses low and inconspicuous................................................................7 7 Clypeus in profile strongly convex.............................................. M. scapularis Kasparyan & Ruiz - Clypeus in profile weakly convex.........................................................................8 8 Juxta-coxal carina a short stub............................................................. M. pluvialis Porter - Justa-coxal carina defined for a considerable distance basad...................................... M. nepomis Porter