Exema 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 : 55

Exema Lacordaire, 1848 Fig. 30

Exema Lacordaire, 1848: 844; Jacoby 1908: 278; Karren 1966: 647; Chamorro-Lacayo and Konstantinov 2009: 74.

Type species.

Chlamys intricata Kollar, 1824, by subsequent designation.

Diagnosis.

Small species (2-3.5 mm length), cylindrical with widest near shoulders; antenna serrate beyond antennomere V, antennomeres III-IV slightly widened, but not dilated distally; pronotum with various bumps and short ridges, posterior pronotal lobe concave, usually without well differentiated notch.

Distribution.

Present in Nearctic, Neotropical, and Oriental regions ( Monrós 1951c; Karren 1966). Includes 26 species, 10 represented in the Neotropics.

Remarks.

Gressitt and Kimoto (1961) synonymized this genus with Chlamisus , yet, this decision has been ignored and is considered to be a valid genus ( Karren 1966, 1972; Seeno and Wilcox 1982; Riley et al., 2003). The relationship among Fulcidacini genera remains to be studied.

Argentinian species checklist.

1. Exema carinipennis Monrós, 1951c (COR, MNS).

2. Exema morio (Kollar, 1824) (MNS).

= Chlamys dubia Kollar, 1824.

= Chlamys globosa Klug, 1824 (nec Kollar, 1824). Host plant: Bambuseae ( Monrós 1951c).

3. Exema serjaniae Monrós, 1951c (CHA, FOR, SAL, TUC). Host plant: Sapindaceae : Serjania sp. ( Jolivet 1978).

4. Exema variopicta Monrós, 1951c (COR, JUY, MNS, SAL, SLS). Host plant: Verbenaceae : Lantana hypoleuca and Lipia salvifolia ( Bokermann 1963).