Ambrosiophilus

Smith, Sarah M. & Cognato, Anthony I., 2015, Ambrosiophilus peregrinus Smith and Cognato, New Species (Coleoptera: Curculionidae: Scolytinae), an Exotic Ambrosia Beetle Discovered in Georgia, USA, The Coleopterists Bulletin 69 (2), pp. 213-220 : 219

KEY TO THE SPECIES OF AMBROSIOPHILUS

OCCURRING IN NORTH AMERICA

1. Declivity shiny, smooth; declivital stria 1 and interstria 2 weakly impressed, interstria 2 bearing a small granule at the base of each seta; declivital posterolateral costa rounded, oblique extending to 1/3 length of declivity; body larger, 3.0– 3.2 mm ( Fig. 5 ).................. ....................................................... A. atratus

1′. Declivity opaque, shagreened; declivital stria 1 impressed, interstria 2 convex, interstria 2 with 3–4 evenly spaced tubercles from base to apex; declivital posterolateral costa with elevated carina extending to declivity midpoint; body smaller, 2.4–2.7 mm ( Figs. 2–4 ) ................................................. A. peregrinus

Figures

Figs. 2–5. Ambrosiophilus species. 2) A. peregrinus, holotype, habitus, dorsal view; 3) A. peregrinus, lateral view, holotype; 4) A. peregrinus, holotype, declivity; 5) A. atratus, declivity.