NO. 2 



HONEY BEE — SNODGRASS 



95 



-Let 



(From Snodgrass, 1933, with muscles re- 



FiG. 31. — Structure of the sting, 

 numbered.) 



A, sting of worker, lateral view. B, sting and its muscles, with ventral wall of proctiger, 

 dorsal view. C, bases of oblong plate and bulb of stylet connected by second ramus (^r). 

 D, triangular plate and base of lancet connected by first ramus (/r). E, proximal bulbous 

 part of stylet, showing basal articulation on second ramus, attachment of furcula, and entrance 

 of duct of poison sack into base of bulb. F, furcula. G, cross section of distal part of shaft 

 of sting. 



a, angle of attachment of quadrate plate to spiracular plate of eighth segment; Ap, apodeme 

 of quadrate plate; b, apex of triangular plate; BGld, "alkaline" gland of sting; hlb, bulb of 

 stylet; c, d, basal angles of triangular plate; e, fulcrum of triangular plate on oblong plate; 

 /, articular lobe of second ramus; Frc, furcula; g, articular lobe of bulb; h, hinge between 

 second ramus and bulb; t, ridge of second ramus; i, groove of first ramus; Let, lancet; 

 Ob, oblong plate; pc, poison canal; PsnSc. poison sack; Ptgr, proctiger; Qd, quadrate plate; 

 ir, first ramus (basal arm of lancet); 2r, second ramus (basal arm of stylet); Sh, sheath lobe; 

 Stl, stylet; Tri, triangular plate. 



