Pseudococcidae

Hodgson, Chris, 2012, Comparison of the morphology of the adult males of the rhizoecine, phenacoccine and pseudococcine mealybugs (Hemiptera: Sternorrhyncha: Coccoidea), with the recognition of the family Rhizoecidae Williams 3291, Zootaxa 3291 (1), pp. 1-79 : 75

Key for the separation of Pseudococcidae and Rhizoecidae based on adult female morphology:

1. A combination of the following character states: rarely very small, generally> 1.5 mm long; labium usually fairly short and broad; cerarii generally present; antennae rarely less than 6 segmented; “internal genitalia” not very apparent and not strongly sclerotised; bi- and tritubular cerores absent; anal ring pores roundish, in 2 rows, each row generally with 15 or more small pores on each side; claws sometimes with a denticle; anal lobes generally present and well developed; spines and spinules generally present; only infrequently hypogaeic..................................................... Pseudococcidae 2. A combination of the following character states: small size, usually less than 1.5 mm long; labium generally narrow, elongate; cerarii absent (or C18 only present); antennae generally geniculate, less than 6 segmented; “internal genitalia” often well sclerotised and obvious; bi- or tritubular cerores often present; anal ring pores elongate, in 2 rows, each row generally with 10 or fewer large pores on each side, or pores absent; claws without a denticle; anal lobes generally absent or poorly developed; spines and spinules absent; hypogaeic habit....................................................... Rhizoecidae