NEW MAI.LOrilAGA. 193 



beyond this j)oint. The approximated edj^es are straiglit 

 and lie each ju.st to one side of tlie middle line, while 

 tlie outer edges are very angularly convex. The lateral 

 processes are short and thick, somewhat hook-shaped, 

 with the ends turned outward. They reach a little 

 beyond the ventral plate. 



Two long curved rods are attached externally to the 

 lateral aspects of the base of the outer part of the penis. 

 Their anterior ends, by which they are movably 

 articulated, are considerably enlarged. Each is curved 

 througiiout its length, so that the outer margin is con- 

 vex and the tips, wliich extend a little farther back- 

 ward than the median parts, converge. The part of the 

 penis between these processes is very strongly chitinous. 

 The lateral margins of the internal {)late are much more 

 strongly chitinized than the median part, so that in a 

 cleared and mounted specimen the former alone show 

 through the body wall. Consequently there is the 

 appearance of an internal pair of rods extending for- 

 ward from the bases of the external pair; and in manv 

 of the figures of Nitzsch, Piaget, and Taschenberg 

 the chitinous genitalia of the males are represented 

 as if this were the case. The plates serve, as in 

 Euryinetopufi taurus, for the attachment of muscles. 

 One specimen was found with the penis protruded. 

 The lateral external rods were turned forward, over the 

 back of the insect, so that the median conical part was 

 left projecting backward and upward alone. It is not 

 very clear what the function of the rods is, since tliere 

 are numerous forms, as will be shown, in which they 

 are absent. The turned-forward position is probably 

 not abnormal, since they were found thus in several 

 specimens of other species, and some of the drawings of 

 Piaget show them the same. They have the appearance 



