Toxognathus, Fairmaire, 1878
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publication ID |
https://doi.org/ 10.1590/0031-1049.2014.54.18 |
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persistent identifier |
https://treatment.plazi.org/id/7B52527A-2414-FF97-749D-62D2F1EDF8EB |
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treatment provided by |
Felipe |
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scientific name |
Toxognathus |
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Key to species for male Toxognathus
1. Mandibles bidentate ( Fig. 8A View FIGURE 8 ); prothorax with sides parallel or slightly rounded ( Figs. 8B View FIGURE 8 ; 11D, E View FIGURE 11 ); pronotal lateral carina not visible in dorsal view ................................................................................2
— Mandibles unidentate ( Fig. 9D View FIGURE 9 ); prothorax with sides sinuous at base and abruptly convergent on anterior region; pronotal lateral carina visible dorsally on posterior half. ( Figs. 7A View FIGURE 7 , 9F View FIGURE 9 ) .....................4
2. Frons flattened or slightly concave along the anterior border, eyes small (IEP 0.34-0.39); antenna surpassing the pronotal posterior angle; pronotum with sides rounded, posterior angles parallel ( Fig. 11E View FIGURE 11 ); free margin of metacoxal plate short and triangular ...........................................................................3
— Frons deeply concave along the anterior border, eyes very small (IEP 0.23); antenna reaching the base of pronotal posterior angle; pronotum with sides almost straight, posterior angles divergent; free margin of metacoxal plate absent, ( Figs. 11D View FIGURE 11 ) ....................................................... T. fairmairei ( Fig. 34K View FIGURE 34 )
3. Frons concave along the anterior border, frontal carina complete; antenna surpassing the hind angle of pronotum by one antennomere; posterior margin of pronotum with a pair of lateral incisions mesad of each posterior angle ( Fig. 8B View FIGURE 8 )........................................................................ T. coomani ( Fig. 34H View FIGURE 34 )
— Frons flat, frontal carina absent medially; antenna surpassing the hind angle of pronotum by 3.5-5.0 antennomeres; posterior margin of pronotum without basal incisions ( Figs. 11E View FIGURE 11 ) ............................... .......................................................................................................................... T. mouhoti ( Fig. 34L View FIGURE 34 )
4. Frontal carina present, protibia with dorsal apical angle right and not produced ( Fig. 7G View FIGURE 7 ) ................5
— Frontal carina absent ( Fig. 9D View FIGURE 9 ), protibia widened apicad with dorsal apical angle acute and produced ( Fig. 9J View FIGURE 9 )............................................................................................................. T. costulatus ( Fig. 34I View FIGURE 34 )
5. Integument light brown; pronotal lateral carina prominent ( Fig. 7A View FIGURE 7 ); elytral interstices convex; free margin of metacoxal plate short and triangular ( Fig. 7B View FIGURE 7 )...................................................................6
— Integument dark reddish-brown to black; pronotal lateral carina not prominent; elytral interstices costate; free margin of metacoxal plate absent ............................................... T. beauchenei ( Fig. 34G View FIGURE 34 )
6. Frons deeply concave along the anterior border; antenna surpassing the pronotal posterior angle by two antennomeres; pronotal punctation 0.2-0.5 diameter apart .......................... T. dohertyi ( Fig. 34J View FIGURE 34 )
— Frons flattened; antenna surpassing the pronotal posterior angle by one antennomere; pronotal punctation 0.5-1.0 diameter apart................................................................................. T. bakeri ( Fig. 34F View FIGURE 34 )
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.