Stereoma Lacordaire, 1848

Agrain, Federico A., Chamorro, Maria Lourdes, Cabrera, Nora, Sassi, Davide & Roig-Junent, Sergio, 2017, A comprehensive guide to the Argentinian case-bearer beetle fauna (Coleoptera, Chrysomelidae, Camptosomata), ZooKeys 677, pp. 11-88 : 22-25

Stereoma Lacordaire, 1848 Fig. 12

Stereoma Lacordaire 1848: 437; Chapuis 1874: 148; Jacoby 1880: 34; Jacoby and Clavareau 1907: 71; Guérin 1943: 72; Monrós 1953a: 215; Moldenke 1981: 107.

Type species.

Stereoma clitellata Lacordaire, designated by Monrós (1953a): 215.

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 ( Monrós 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 ( Monrós, 1953a).

3c. Stereoma clitellata concolor Lacordaire, 1848 (JUY, SAL, SEO).

= Stereoma concolor Lacordaire, 1848.

4a. Stereoma laevicollis bosqui Monrós, 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 Monrós, 1953a (JUY, SAL, TUC).

5. Stereoma obesa Monrós, 1953a (SEO).

6. Stereoma seenoi Moldenke, 1981 (JUY). [ Moldenke (1981), mistakenly cited this species from (Jujuy: Bolivia), it belongs to Jujuy: Argentina.].