186 Journal New York Entomological Society. [Voi. xl 



granular pericardial cells. The pericardial space above is filled by a 

 loose mass of pericardial fat cells. 



The Reproductive Organs occupy the usual positions above and 

 below the alimentary canal. 



In the male (Figs. 2 and 8) the testes (Fig. 8, tes.') are flat, oval 

 and set on edge against the side wall of the body cavity, reaching 

 from the front part of the fourth into the seventh abdominal segment. 

 Four large tracheal trunks, from the spiracles of the third, fourth, 

 fifth and sixth abdominal segments ramify in finger-like bunches upon 

 the inner surface of each. Each testis is a racemose gland, not com- 

 posed of tubes as in Dissosteira, and the vas deferens issues from its 

 lower end. The latter, just below the testis, is tightly coiled into a 

 solid, epididymis-like mass (Figs. 2 and 8, epd. The epididymis is 

 uncoiled on the right side of Fig. 2). 



Below the epididymis the vas deferens turns inward and is lost in 

 the mass of accessory glands (Fig. 8, ac. g/s.). When the posterior 

 smaller ones of these are removed (as in Fig. 2) it is seen that the 

 vasa deferentia enlarge greatly before uniting to form the ejaculatory 

 duct (ej. d.). There are two sets of accessory glands. One set 

 consists of two anterior lateral masses (^ac. g/s.) of long coiled tubes, 

 those of each mass uniting posteriorly in a short tube (Fig. 2) which 

 opens into the enlarged part of the vas deferens. The other set con- 

 sists of a great number of smaller tubes (ae. g/s.') opening directly 

 into the enlarged parts of the vasa deferentia. These glands must 

 secrete the large mass of albuminous matter injected by the male into 

 the bursa copulatrix of the female at the completion of copulation. 



The spermatozoa are filiform with an anterior enlargement showing 

 a constriction near the front end (Fig. 5). They occur in fan-shaped 

 or conical bunches in the testes. In the spermatophores they form 

 long feather-like bundles (Fig. 6), the shafts of which are formed by 

 the united heads of the spermatozoa. 



The penis (Fig. 11, pe//.) consists of an irregularly lobed evagina- 

 tion from the anterior end of the genital chamber (g. e.). On its 

 dorsal surface is an invagination, the spermatic pouch (^s. />.), into 

 which opens the ejaculatory duct. Above the base of the penis there 

 arises from the anterior wall of the genital chamber two slender ser- 

 rated, chitinous rods (/'.). 



In the female organs (Fig. 7) the ovaries (ozi.) consist of two 

 large oval masses of egg tubes, about fifteen tubes in each, lying in the 



