Doering: Lepyroxia quadrangularis. 555 



The trochanter is a small elbow-shaped piece whieh is attaehetl to 

 the \-entromesal angle of the eoxa. It is slightly constricted at its 

 cephalic end and is about one-fourth the size of the coxa. 



The femur is a cylindrical-shaped segment which is somewhat 

 swollen at the proximal end, but gradually becomes narrow distad. 

 It is the stoutest of tlii' leg segments outside of the coxa. The 

 trochanter is attached to its niediocephalic angle by a diagonal line 

 of connection. Its distal end bears a small groove into which the 

 tibia is inserted, while the lateral margins of the groove expand 

 into a platelike structure on cither side of the tibia for the purpose 

 of strengthening the joint. 



The tibia resembles the femur in general shape. It is cylindrical, 

 smooth, and approximately the same length as the femur, but its 

 width is only half that of the femur. The proximal end, which 

 fits into the grove of the femur, is elbowed. There are no spines on 

 the front tibia. 



The tarsus is three-segmented. The first two segments are about 

 equal in length, triangular in shape and larger ventrally tluin dor- 

 sally. 



The tarsus is terminated by two equal, heavily chitinized claws 

 (pi. LVIII, figs. 6 and 9). The claws are broad at the base and 

 gradually taper to an obtuse blunt point. The pulvillus or cm- 

 podium, accoi'ding to Hansen (1890), is very conspicuous and 

 greatly extended. On its dorsal surface it bears a large, bilobed, 

 chitinous plate, and just below this a bristle (pi. LVIII, fig. 6). 

 On the ventral side (pi. LVIII, fig. 9) are two narrow, longitudinal 

 bands which run parallel to the margins of the claws. These bands 

 and part of the claws appear to be attached to the third segment of 

 the tarsus by a lightly chitinized band or sttilk. 



The middle legs (pi. LVIII, fig. 2) are attached directly to the 

 sternum by the broad, transverse margins of the coxa^. The trochan- 

 tin of the mesothorax is much smaller than that of the prothorax and 

 is situated on the extreme laterocephalic angle of the coxa just above 

 the meracanthus. The median leg. in most respects, is similar to 

 the fore leg, being almost identical in size and shape of segments 

 with the exception of the coxae. The latter are somewhat larger 

 than the anterior coxse and their median margins are almost con- 

 tiguous. They have on their lateral margins a large, flattened 

 process or meracanthus which is not found on the other four legs. 



The posterior coxce fpl. LVIII, fig. 8) are more broadly attached 

 to the body than even the intermediate coxae are, since they extend 



