Macrotomini

Santos-Silva, Antonio & Wappes, James E., 2012, The genus Aplagiognathus Thomson, 1861 (Coleoptera, Cerambycidae, Prioninae, Macrotomini), Insecta Mundi 2012 (264), pp. 1-13 : 4-5

Key to North and Central American genera of Macrotomini (excluding the West Indies)

1.

— Antennomere III longer than scape; scutellum convex with distinct asperities .......................... 2 Antennomere III shorter than scape; scutellum flat or slightly concave without distinct asperities

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2(1).

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Antennomeres serrate. S. Mexico and Costa Rica............. Parastrongylaspis Giesbert, 1987 Antennomeres filiform. Mexico to southern S. America ........... Strongylaspis Thomson, 1861

3(1).

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Mandibles oblique, with their underside forming an angle with the ventral surface of the body that is less than 150o ........................................................................................................................................................................................... 4

Mandibles horizontal or nearly so, with their underside forming an angle with the ventral surface of the body that is greater than 150o .................................................................................................................................................. 6

4(3).

— Lateral margin of pronotum crenulate. S. United States and N. Mexico........................................

........................................................................................................ Archodontes Lameere, 1903 Lateral margin of pronotum with distinct spines or crenulate-spinose ....................................... 5 5(4).

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