88 Annals Entomological Society of America [Vol.1, 



The spermatheca in the Hving condition is of a pale yellowish 

 color, but in the material injected with 95 per cent, alcohol, it 

 assumes a whitish color. From an external view, a constriction 

 divides the seminal receptacle into two parts: (i) a more or less 

 heart-shaped dorsal part (Fig. i, sp); and (2) a funnel-shaped 

 ventral portion, which opens into the dorsal wall of the common 

 oviduct (Fig. 18, /). This boundary is further marked by two 

 bundles of transverse muscles, which leave the spermatheca on 

 either side and attach to the body wall. The musculature of the 

 spermatheca and the function of these will appear in a subse- 

 quent paper. 



In order to ascertain the exact course which the male intro- 

 mittent organ takes during copulation, the abdomen of a number 

 of specimens was cut in two during the sexual union and then 

 dropped into 95 per cent, alcohol. If, after thorough dehydra- 

 tion, the abdomen of the male and female are separated, the 

 opening in the female for the reception of the male organ can be 

 distinctly seen to be directly beneath the peculiar notch of the 

 last sternite (Fig. 16, vo). A careful dissection of the abdomen 

 of two specimens obtained in this manner shows that the male 

 copulatory organ passes not only into the common oviduct, but 

 extends for some distance up into the funnel-shaped portion of 

 the spermatheca. 



The accessory glands consist of a mass of coiled tubes lying 

 for the greater part dorsal and lateral to the colleterial sac and 

 spermatheca. A dissection of an insect immediately after it has 

 been killed, shows that the accessory sac and glands are filled 

 with a rather thick translucent liquid. With the addition of 

 alcohol this liquid hardens, forming a whitish solid. In Fig. i, 

 the accessory glands were teased away from the reservoir and 

 receptaculum seminis. These glands, w^hen they are spread apart, 

 are found to be composed of a right and left mass of branching 

 tubules, which terminate blindly in slightly swollen ends. The 

 branching tubules composing these masses finally communicate 

 with two long unbranched ducts, the right and left accessory gland 

 ducts. These ducts, in turn, unite a short distance before joining 

 the colleterial sac, forming a broad duct, the common colleterial 

 gland duct, which communicates with the reservoir posteriorly 

 (Figs. 17 and 18, ccd). The colleterial reservoir is a large slightly 

 bilobed sac (Fig. i, cs) which opens to the outside at the base 

 of the saws by a broad, somewhat obliquely inclined duct (Figs. 



