ARTHUR DEWITT WHEDOX 415 



unci are pressed into triangular form by the rest of the organs. 

 The vasa deferentia begin near the middle of the eighth segment 

 and run directly to the region of segment nine whei'e they gradu- 

 ally enlarge and after coiling around ventrally enlarge still more 

 and connect with the central, round sperm sac. This sac opens 

 beneath by the genital pore. 



Female: — The Ovaries in Caloptenjx run from the posterior 

 metathorax as far as the posterior part of the eighth segment. 

 They are attached to the thorax by a broad and diffuse dorsal 

 ligament, and as fai- back as segment six they are close together. 

 In segment seven they narrow to form the oviducts which pass 

 through most of .segment eight, turn ventrad and pass beneath 

 the sides of the seventh ganglion (segment eight) to unite as the}- 

 enter the oval bursa copulatrix. Beneath the posterior end of the 

 bursa a short tube is produced: this immediately divides into two, 

 each of which turns laterad and cephalad about the bursa. These 

 accessory sacs are club-shaped and two-thirds the length of the 

 hitter. Two or more eggs seem able to pass down the oviduct at 

 the same time. 



In Megaloprepu.s the closely approximated ovaries begin in the 

 posterior part of segment two and increase immediately to full 

 width and size, and run caudad to the middle of segnient six 

 where they commence to separate and lie lower and laterally. 

 Only in the posterior part of segment seven or in segment eight 

 do they pass completely beneath the alimentary canal. Thi-ough 

 segment eight they lun parallel in the groove of the narrow ^'- 

 shaped sternum, and unite only as thej^ enter the bursa. The 

 latter is oval and smaller than in CaJopteryx. It is surrounded 

 b}^ much fatty matter within which are imbedded a number of 

 small bent and coiled tubes that could not be clearly made out in 

 the material available. Just anterior to the bursa is a flat tongue- 

 shaped body the coimections of which could not 1)0 made out. 

 The two accessory sacs lie in the_tenth segment pointing away 

 from the l)ursa; they are heaviest at the anterior end. The 

 eggs seem large, each ovary being liut two eggs wide dorsally. 

 They pass through the oviducts singly. 



TRANS. AM. EN'T. .SOC XLIV. 



