Ambrosiophilus caliginestris Smith, Beaver & Cognato 2020 (in Smith et al. 2020b): 58.
2.9−3.1 mm long (mean = 3.0 mm; n = 2); 2.42−2.58 times as long as wide. This species is distinguished by all declivital interstriae granulate along the entire length; pronotum from lateral view tall (type 2); declivital striae 1 weakly impressed; declivital interstriae moderately and uniformly granulate, granules spaced by a distance of 4 diameters of a granule; interstrial setae long, hair-like; and moderate size.
Ambrosiophilus atratus, A. satoi, and A. sulcatus
unknown (Smith et al. 2020b)
specimens not available for sequencing