Hemiberlesia Cockerell, 1897: 12

Liu, Di & Feng, Jinian, 2018, Description of a new species of Hemiberlesia Cockerell (Hemiptera: Coccomorpha: Diaspididae) from China, with a key to Hemiberlesia species known from China, Zootaxa 4388 (4), pp. 575-585 : 576

Genus Hemiberlesia Cockerell, 1897: 12 .

Type species: Hemiberlesia rapax (Comstock, 1881)

Generic diagnosis: Adult female. Scale cover circular or subcircular, dorsum slightly convex, exuviae situated centrally or submarginally. Body pyriform to oval, derm membranous to slightly sclerotized, except pygidium with some stronger sclerotization. Antennae each 1 segmented, bearing 1 or 2 long setae. Perispiracular pores absent. Pygidium with 3 pairs of pygidial lobes: median lobes (L1) strongly developed, second and third lobes (L2 and L3) quite reduced. Plates simple or fringed on postero-lateral edge. Dorsal macroducts longer and broader than ventral microducts, both filiform, 1-barred and more or less expanded apically. Anal opening elliptical to circular, relatively large, wider than or equal in width to a median lobe, distance of posterior edge of opening from base of median lobes about 2x length of anal opening or slightly more. Perivulvar pores, if present, forming 4 groups.

Remarks. The genus Hemiberlesia is very similar to Diaspidiotus in having: body pyriform, derm membranous to slightly sclerotized; antennae each 1-segmented with 1 or 2 long setae; and pygidium with 3 pairs of pygidial lobes, L1 strongly developed, L2 and L3 reduced. However, Hemiberlesia can be easily distinguished from Diaspidiotus because the latter has a much smaller anal opening, markedly narrower than a median lobe, with the posterior edge of the opening separated from the base of the median lobes by a distance at least 2x to slightly more than 3x the length of the opening.