A comprehensive guide to the Argentinian case-bearer beetle fauna (Coleoptera, Chrysomelidae, Camptosomata) Author Agrain, Federico A. Author Chamorro, Maria Lourdes Author Cabrera, Nora Author Sassi, Davide Author Roig-Junent, Sergio text ZooKeys 2017 677 11 88 http://dx.doi.org/10.3897/zookeys.677.10778 journal article http://dx.doi.org/10.3897/zookeys.677.10778 1313-2970-677-11 1C3D9A997A4C443FB228CEA383A2D72F 1C3D9A997A4C443FB228CEA383A2D72F Stereoma Lacordaire, 1848 Fig. 12 Stereoma Lacordaire 1848 : 437; Chapuis 1874 : 148; Jacoby 1880 : 34; Jacoby and Clavareau 1907: 71; Guerin 1943 : 72; Monros 1953a : 215; Moldenke 1981 : 107. Type species. Stereoma clitellata Lacordaire, designated by Monros (1953a) : 215. Figure 12. Stereoma clitellata clitellata Lacordaire (1), left: habitus (dorsal view), right: habitus (lateral view). Diagnosis. Sexually dimorphic, with males having enlarged forelegs; head completely concealed within prothorax; mesosternum broad; tarsal segments very transverse, tarsomere III cleft 1/2 length to receive IV; tarsomere IV notoriously short and thick ; frons with prominent transverse sulcation; lateral margin of pronotum broadly explanate, hind angles broadly rounded. This genus is closely related to Urodera , from which it can be separated by the conspicuous development of the legs, since the latter is much larger in males and females compared to Urodera . Distribution. Seven species and four subspecies are known from Argentina, another 10 species are known from Meridional America (southern part of South America). Remarks. Sesbania virgata ( Fabaceae ) has been cited as a hostplant for Stereoma sp. in Argentina ( Monros 1953a ). Argentinian species checklist. Stereoma anchoralis Lacordaire, 1848 (COR). Stereoma angularis Lacordaire, 1848 (MNS). 3a. Stereoma clitellata burmeisteri Harold, 1875 (CHA, COR, FOR, JUY, LRA, MNS, SAL, SEO, SFE, TUC). = Stereoma burmeisteri Harold, 1875. 3b. Stereoma clitellata clitellata Lacordaire, 1848 (CHA, CTS, FOR, MNS, SFE). Host plant: Fabaceae : Acacia decurrens ( Monros , 1953a). 3c. Stereoma clitellata concolor Lacordaire, 1848 (JUY, SAL, SEO). = Stereoma concolor Lacordaire, 1848. 4a. Stereoma laevicollis bosqui Monros , 1953a (SFE). 4 b. Stereoma laevicollis laevicollis (Harold, 1875) (CAT, CHA, FOR, JUY, LRA, SAL, SEO, SLS). Host plant: Fabaceae : Cassia aphylla (Viana & Williner, 1974). = Urodera laevicollis Harold, 1875. 4c. Stereoma laevicollis orophila Monros , 1953a (JUY, SAL, TUC). 5. Stereoma obesa Monros , 1953a (SEO). 6. Stereoma seenoi Moldenke, 1981 (JUY). [ Moldenke (1981) , mistakenly cited this species from (Jujuy: Bolivia), it belongs to Jujuy: Argentina.].