Ypofloiococcus Miller and Stocks, 2022

Miller, Douglass R. & Stocks, Ian C., 2022, New genera and species of felt scales (Hemiptera: Coccomorpha: Eriococcidae), with descriptions of new species and immature instars of described species, Zootaxa 5221 (1), pp. 1-213 : 198

Ypofloiococcus Miller and Stocks gen. n.

Type species: Ypofloiococcus libeauae Miller and Stocks sp. n. by current designation and monotypy.

Generic diagnosis of adult female: Macrotubular ducts each with large flap attached to vestibule; microtubular ducts of 3 sizes, with single sclerotized area distally; multilocular pores in large clusters on posterior abdominal segments ventrally; cruciform pores absent; anal ring usually complete, with few or no pores; hind coxae with unusually large numbers pores; hind tibia longer than tarsus; antennae each with sensory setae restricted to apical 2 segments; labium 2-segmented, apical segments fused, basal segment narrow, with 1 seta on each side; anal lobes not projecting; enlarged setae absent.

Notes: The species in Ypofloiococcus is most similar to Ovaticoccus species but differs as follows (characters of Ypofloiococcus in brackets): macrotubular ducts without loop attached to vestibule (with loop attached to vestibule); microtubular ducts of one size (two or three sizes); microtubular ducts, when present, with double distal sclerotization (when present, with single distal sclerotization); antennae each with sensory setae on apical three segments (apical two segments); labium three-segmented (two-segmented).

Etymology: Ypofloiococcus is a combination of the Greek words “ ypo ” meaning “under,” “ floios ” meaning “bark,” and “ kokkos” meaning “seed” or “scale insect” and is a masculine noun. The generic epithet is formed because of the habit of the type species, Ypofloiococcus libeauae , to reside under the bark of its host.

Field features: Occurring under bark on the trunk of the host.