Description of a new species of Hemiberlesia Cockerell (Hemiptera: Coccomorpha: Diaspididae) from China, with a key to Hemiberlesia species known from China Author Liu, Di Author Feng, Jinian text Zootaxa 2018 2018-03-06 4388 4 575 585 journal article 30587 10.11646/zootaxa.4388.4.9 394484e3-2479-4267-a6cb-141cb0825652 1175-5326 1189172 9357B574-A571-46FF-B583-916DA68702A8 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.