Review of the Eriococcidae (Hemiptera: Coccomorpha) infesting Fabaceae in Argentina, with descriptions of three new species of Acanthococcus Signoret Author González, Patricia Author Claps, Lucía E. Author Juárez, Andrea Author Moreno, Diego text Zootaxa 2017 4232 1 41 57 journal article 36547 10.11646/zootaxa.4232.1.3 5363e2a3-ce92-40df-8518-384275ad9570 1175-5326 292749 21D49668-D5AE-48B5-9C92-5C4F06D49F3F Hempelicoccus santiaguensis (González & Granara de Willink) Eriococcus santiaguensis González & Granara de Willink 2009 : 306 –308. Hempelicoccus santiaguensis , Hodgson & Miller, 2010 : 48 . Material examined. Holotype : Argentina , Santiago del Estero , Termas de Rio Hondo ( 27°29'56" S , 64°51'40" W ), on Prosopis sp., 23/IX/1990 , M.C.G. Willink col. 1(1) ( IFML ) . Paratypes : 2(6) with same data. La Rioja , Centro Universitario ( 29°25'45" S , 66°52'8" W ), on Leucaena leucocephala , XII/2002 , M.C.G. Willink col. 1(3 + 1firstinstar nymph + 1adult male + 1 prepupa) ( IFML ) . Other examined material. Argentina , Santiago del Estero , Km 1128, R. 157 ( 28°14'1" S , 65°5'56" W ), on “creeper plant”, 7/V/1998 , M.C.G. Willink col., 2(5 + 1 first-instar nymph) ( IFML ). Diagnosis. Slide-mounted adult female with dorsal surface with reticulations and with 10 groups of microtubular ducts of 2 types on head, thorax and abdomen. Margin with 2 or 3 setae on each abdominal segment. Ventral surface with microtubular ducts of type B; quinquelocular pores extending towards margin from anterior spiracles; frontal lobes present (González & Granara de Willink 2009 ). Distribution. Argentina ; Neotropical region, Chaco subregion, Chaco province ; South American Transition Zone, Monte province.