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N. E. MCINDOO 



as an average; on a labrum from 46 to 56, with 52 as an average; 

 on a labial palpus from 4 to 7, with 5 as an average; on a ligula 

 from 5 to 7, with 6 as an average; on a mentum from 8 to 12, with 

 10 as an average; on a submentum from 15 to 21, with 18 as an 

 average; on the ventral side of a head from 6 to 14, with 9 as an 

 average; and on the dorsal side of a head (chiefly epicranium) 



Figs. 26 and 27. Disposition of single olfactory organs on legs and hypopleural 

 regions (HR), X 9; fig. 26, outer surface and fig. 27, inner surface. The top draw- 

 ings represent the front legs and the bottom ones, the hind legs. The drawings 

 at the right in fig. 26 and those at the left in fig. 27, represent the opposite sides of 

 the right legs, and the ones at the left in fig. 26 and those at the right in fig. 27, 

 the opposite sides of the left legs. 



