MANUAL OF THE APIARY. 



95 



organ is used. Near the base of each lancet is a beautiful 



valvular organ (Fig. 25, e, e). The hollow inside the lancets 



(Fig. 25, I, i), unlike that of the awl, is useful. It opens 



Fig. 25. 



Sting with Lancets drawn one side, cross-secMon of Sting, and a 

 Lancet, much magnified. 



o— Poison sack. 



A— Awl. 



u, TJ— Barbs. 



I, I— Hollows in lancets. 



T' — Groove in lancet. 



M— Tube from sack to reservoir, s— Reservoir. 

 B, B -liancets. B, b— Valves. 



o, o— Openings from hollow in H— Hollow in awl. 

 lancets. T, T —Ridges in awl. 



anteriorly in front of the first six barbs (Fig. 25, 0, o), as 

 shown by Mr. Hyatt, and posteriorly just back of the valves 

 into the central tube (Fig. 25, n), and through it into the 

 reservoir (Fig. 25, s). The poison then can pass either 

 through the hollow lancets (Fig. 25, I, i) or through the cen- 

 tral tube (Fig. 25, n), between the three spears. 



The lancets are held .to the central piece by projections 

 (Fig. 25, T, t) from the latter, which fit into corresponding 



