NO. 2 HONEY BEE — SNODGRASS 115 



tracts the lancet (fig. 32 G). The two parts of this muscle are anatom- 

 ically two muscles, but functionally a single muscle. The upper part 

 has mistakenly been said (Betts, Morison, and others) to be attached 

 on the triangular plate. 



/pp. Retractor of the lancet of the sting (figs. 31 B, 32 C). — A 

 broad fan-shaped muscle arising anteriorly on quadrate plate, inserted 

 posteriorly on upper edge of oblong plate. Pulls the quadrate plate 

 backward, elevates the triangular plate, and retracts the lancet (fig. 

 32 F). 



200, 201. Muscles of the proctiger in the female (fig. 31 B). — Two 

 long slender muscles arising on posterior dorsal angle of the quadrate 

 plate (tergite of segment IX), inserted laterally and ventrally on 

 lower wall of proctiger. 



202. Median dorsal muscle of abdominal segment IX in the male 

 (fig. 29 B). — A short muscle from apodeme of small tergite of seg- 

 ment IX to side of proctiger. This muscle falls in line with the median 

 dorsals of the preceding segments, and probably is represented by 

 muscles 200 and 201 in the female. 



20^, 204. Phallic muscles of the male (fig. 29 D). — Two small 

 muscles, or divergent parts of one muscle, arising ventrally on para- 

 meral plate (Ip), inserted dorsally on end of apodeme of penis valve 

 ipv). 



20 j. Muscle of the mucus gland of the male (fig. 29 D) . — A slender 

 muscle from apodeme of penis valve to mucus gland just laterad of 

 end of vas deferens. ' 



ABBREVIATIONS USED ON THE FIGURES 



A, anal vein. 



Ac, antecosta. 



af, antennafer. 



An, anus. 



ANP, anterior notal wing process. 



Ant, antenna. 



Ap or ap, apodeme. 



apa, apodeme of aedeagus. 



Ar, arolium. 



arc, arcus 



at, anterior tentorial pit. 



AT, anterior tentorial arm. 



CM, auricle. 



aux, auxilia. 



Ax, axillary sclerite of wing base (lAx, 2 Ax, sAx, 4Ax, first, second, third, 



and fourth axillaries). 

 AxC, axillary cord. 

 axlv, axillary lever. 



