Comprehensive Description

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General Description

The head and thorax of the O. cingulatus larvae are dark brown-red and the abdomen is dirty-brown color (Voris, 1939). The mature larvae can reach 25mm long and 4mm wide. The adult size range is between 13-18 mm but can reach up to 21mm. The brown body of O.cingulatus is irregularly marked with spots of heavy dark pubescence (Downie and Arnett, 1996). The tip of the abdomen is densely covered with golden-yellowish pubescence which also covers the metasternum (Downie and Arnett, 1996). Like for the other species of the genus Ontholestes, the anterior angles of the prontum are extended and angular, quite pointed (Smetana and Davies, 2000). Most of the leg is reddish-brown with the femora darker and the apex and the lateral edge usually lighter but variable (Smetana and Davies, 2000). The tarsal formula is 5-5-5. The dark red antennae have 11 segments with the last obliquely notched.


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© University of Alberta Museums

Source: University of Alberta Museums

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