Mecosarthron, Buquet. According, 1840

Santos-Silva, Antonio & Lingafelter, Steven W., 2012, Morphological Analysis Of Mecosarthron Buquet And Xixuthrus Thomson And Reevaluation Of Generic Assignment Of Xixuthrus Domingoensis Fisher (Coleoptera, Cerambycidae, Prioninae), Papéis Avulsos de Zoologia 52 (27), pp. 315-332 : 331

Key to the species of Mecosarthron

1. Pubescence of the pronotum and elytra sparse; apex of prosternal process wide and rounded ( Fig. 3 ). Brazil (Bahia) ...................................................................................................... M. gounellei (Lameere, 1903)

– Pubescence of the pronotum and elytra dense; apex of prosternal process narrow and acute ( Figs. 2 , 7 )... 2

2(1). Scape slightly surpassing posterior edge of eyes, shorter than antennomere III; foretibia narrow, only barely enlarged from base to apex, distinctly different from meso- and metatibia ( Fig. 7 ). Brazil...................... ................................................................................................................. M. tritomegas Lameere, 1920

– Scape distinctly surpassing posterior edge of eyes, longer than antennomere III; foretibia noticeably enlarged from base to apex, similar to meso- and metatibia ( Fig. 2 ). Brazil (Bahia to Santa Catarina) ........ .................................................................................................................... M. buphagus Buquet, 1840

Figures

FIGURE 2: Mecosarthron buphagus Buquet. A. dorsal habitus, male; B. ventral habitus, male; C. lateral habitus, male; D. dorsal habitus, female; E. ventral habitus, female; F. lateral habitus, female.

FIGURE 3: Mecosarthron gounellei (Lameere). A. dorsal habitus, male; B. ventral habitus, male; C. lateral habitus, male; D. dorsal habitus, female; E. lateral habitus, female.

FIGURE 7: Mecosarthron tritomegas Lameere, holotype (male). A. dorsal habitus; B. ventral habitus; C. holotype labels.