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 Acanthococcus Signoret Generic diagnosis (amended). Adult female. Dorsum : Setae often enlarged conical or spinose. Enlarged tubular ducts absent. Macrotubular ducts present throughout. Microtubular ducts present. Median plate present or absent. Margin: often demarcated by a line of enlarged setae. Venter: often with enlarged setae near margin but with hairlike setae present elsewhere. Macrotubular ducts present, frequently of more than 1 type. Microducts present. Disc pores most usually quinquelocular, but number of loculi varying from 3 to 9. Frontal lobules often present. Antenna with 6 or 7 segments. Labium 3 segmented, basal segment with 1 or 2 pairs of setae. Legs well developed, hind leg usually with translucent pores (modified after Hodgson & Miller 2010 ; Kozár et al . 2013 ). Comment. In addition, the Argentinian species treated in this paper have: (i) two types of microtubular ducts: Type A: with a broad vestibule (outer ductule), longitudinally divided by a median septum, the inner end with two protuberances, and with a simple outer orifice; and Type B with a narrow, undivided vestibule (ductule), with the inner end rounded and a simple outer orifice; (ii) macrotubular ducts of two types : either symmetrical with the sides of the cup of equal depth, or asymmetrical, with the cup deeper on the side where the inner ductule arises; and (iii) small macrotubular ducts, each short and narrow, with a broad cup (two or three times wider than duct), present only on ventral surface ( Fig. 2 G) ( González 2008 ).