Key for the species of Lepturges (Lepturges) with integument unicolor and sparse uniform yellowish, brownish or greyish fulvous pubescence.

1. Integument dark brown, uniformly covered with unicolorous, thin greyish-fulvous pubescence. Brazil (Mato Grosso, Goiás, Bahia, Minas Gerais, Espírito Santo, São Paulo, Paraná), Bolivia (Santa Cruz), Paraguay (Fig. 7)................................................................................................... L. (L.) unicolor Gilmour, 1959

- Integument uniformly testaceous or brownish...............................................................2

2. Integument uniformly testaceous.........................................................................3

- Integument uniformly brownish, except a greyish sutural line on each elytron. Brazil (Pará, Maranhão) (Fig. 8)........................................................................................ L. (L.) castaneus Monné, 1978

3. Lateral tubercles of the prothorax placed before basal margin. Mexico (Durango)............ L. (L.) subglaber Casey, 1913

- Lateral tubercles of the prothorax placed at basal margin.......................................................4

4. Lateral tubercles of the prothorax acute, slightly directed backwards. Mexico (Chiapas, Oaxaca, Puebla) (Fig. 9)............................................................................................ L. (L.) janus Bates, 1881

- Lateral tubercles of the prothorax subacute, directed laterally...................................................5

5. Pronotum uniformly punctate; basal metatarsomere I 1 /2 times the length of the two following together. United States (Ari- zona, Texas), northern Mexico (Fig. 10).............................................. L. (L.) yucca Schaeffer, 1905

- Pronotum punctured in the depressed areas; metatarsomere I 3 /4 of the following two together. Brazil (Bahia) (Fig. 6)......................................................................................... L.(L.) attaleae sp. nov.