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General DescriptionThis species is black with white, ivory or pale yellow markings. The Blackjacket resemble to Baldfaced Hornet and the Northern Yellowjacket, but V. consobrina has no ferruginous markings on abdominal terga 1 and 2. In average the queen size 17 mm, males 15 mm and workers 11 mm. Head: The malar space is below than half as long as the penultimate antennal segment; scape with pale anterior mark; the occipital carina is incomplete; black clypeal mark of female free or extending to clypeus dorsal margin; black clypeal mark of male extending to ventral margin, rarely free; ivory, white or pale yellow strip along inner orbit ending close apex of ocular sinus. Metasoma: the metasomal tergites are covered with long straight hairs; with white or pale yellow bands on metasomal segments; apical fascia on metasomal tergite 1 evanescent or absent; queens have straight fascie on metasomal tergite 4 and 5; male aedeagus with saddle-shaped portion. Xanthic queens with free black discal spots on terga 4 and 5 and linked spots on tergum 2 (Buck et al. 2008, Miller 1961).