]\){\ A)nnils Ii)itoniolo'^ic(il Society of America \\o\. Ill 



TEGlL.i;. 



The tcgula is a small chitinous plate, more or less triangular, 

 with rounded corners, lying over the base of the fore wing. 

 It is slightly sericeous, and to some degree arched. 



LECiS. 



The legs are quite long, rather slender, hairy, and all these 

 segments beyond the femora are armed with spines to a greater 

 or less degree. Coxa more or less bulb shaped. The two tro- 

 chanters taken together are as long or a little longer than the 

 coxa, and they are of about equal length in the hind leg. while 

 in the middle and fore legs the outer segment is only about 

 half the length of the other. Femur is second in length to the tibia, 

 the longest segment , and in stoutness.to the coxa which is the stout- 

 est segment. The tibia is largest at its distal end. It is armed with 

 spines above, below, and on the sides, these showing a partial 

 arrangement into longitudinal rows. At its outer end where it 

 joins the first tarsal segment is a circlet of spines, two of which 

 are much longer and stouter than the others in the posterior 

 and middle legs, which arc called tibial spurs. The inner spur 

 is nearly twice as long as the outer one. These spines are 

 clothed with hairs. The fore leg instead of bearing two tibial 

 si)urs has one long spur-like appendage nearly half as long as the 

 segment, curved for about one-third of its length from the base 

 to the extremity, bearing hairs on its inner surface which in 

 connection with a corresponding modification at the base of 

 the first tarsal segment acts as a cleaning apparatus. 



There are five tarsal segments. The first is by far the long- 

 est, being about twice as long as the second, and three times as 

 long as the third which is about as long as the fourth and fifth 

 taken together. The fourth segment is slightly shorter than the 

 fiflli. The first three segments are armed with spines beneath, 

 on the sides and at their outer ends. The fourth segment is 

 the shortest tarsal segment, and is provided with spines at its 

 end where it joins the base of the fifth and last segment. The 

 fifth segment is not armed with spines except for a few long 

 spine-like hairs at its extremity where the pair of well developed 

 claws and a pul villus between them occur. On the under side 

 of the claw are borne about twenty teeth. 



