304 BULLETIN 63, UNITED STATES NATIONAL MUSEUM. 



The mesosternum is quite short, obliquely declivous, and rather 

 strongly concave. 



The abdominal process is about one-fourth of its width broader 

 than the metasternal salient, nearly quadrate, slightly transverse, and 

 equal in length to the post-coxal portion of the same segment, the 

 latter being equal to the third in lengih ; the second is twice as long 

 as the fourth. 



The metasternum laterally between the coxae is about as long as the 

 width of a mesotibia at apex. 



The tibial grooves of the profemora are well developed and defined 

 by smooth cariniform margins, that are scarcely at all arcuate, 

 quite evenly and graduall}' convergent, to become contiguous a short 

 distance from the base ; floors glabrous and shining, feebly concave ; 

 the anterior margins at the outer fourth are dentately laminate in 

 the males; in the female more or less sinuately atrophic in the outer 

 fourth. 



On the mesofemora the sulci are less strongly defined by cariniform 

 margins, that become quite evanescent at the inner third; the floors 

 are glabrous, shining, and very feebly concave. 



The metafemoral tibial grooves are rather narrow and with rather 

 feeble margins, that become evanescent without becoming contigu- 

 ous at about the middle. 



The protibia3 are scarcely compressed, not carinate, but smooth ex- 

 ternally ; tarsal sulci more or less feebly developed and subasperate ; 

 posterior surface muricately sculptured, but not coarsely so ; articular 

 cavities usually closed. 



The mesotibiae are more or less rounded and not coarsely nuiri- 

 cately sculj^tured, smooth, and not carinate in basal third externally ; 

 tarsal grooves more or less obsolete and subasperate ; articular cavities 

 closed. 



Metatibia^ quite cylindrical, not coarsely muricately sculptured, 

 more or less feebly flattened and rarely grooved externals ; articular 

 cavities distinctly closed. 



The tarsi are moderately long and stout. 



The protarsi are about one-fourth of their length shorter than a 

 mesotarsus. Joints two, three, and four are subequal in length and 

 slightly wider than long, together about equal to the fifth; the first 

 is slightly longer than wide. 



The mesotarsi are JTist slightly shorter than a metatarsus. Joints 

 two, three, and four subequal in length and very slightly longer than 

 wide, together equal to the length of the fifth ; the first is about a 

 half longer than wide. 



The metatarsi are equal to half the length of a metatibia. Joints 

 two and three subequal in length, distinctly longer than wide and 



