420 BULLETIN 63^ UNITED STATES NATIONAL MUSEUM. 



and somewhat transversely arranged on the anterior half so as to 

 give a distinctly bearded appearance. Otherwise as in gigantea. 



The prosternum is moderately prominent ventrally with the coxse, 

 convex antero-posteriorly and grooved; there is a small macro 

 behind. 



The mesosterniim is arciiately declivous and more or less vertical, 

 concave to a varying degree. 



The inetasternum laterally between the coxa3 is about as long as 

 the width of a mesotibia at middle. 



Comparative measurements gave the same relative proportions 

 between the abdominal segments, metasternal and abdominal salients 

 of the two extreme specimens of geritilis before me. LeContian 

 cotype, male, 20 mm. ; Hopping's large example, male, 27 mm. 



The abdominal salient is about a third of its width broader than 

 the metasternal process; the abdominal salient is subquadrate, a little 

 longer than wide; the post-coxal portion of the first segment is equal 

 to the third in length, and the second is twice as long as the fourth. 



The profemora are feebly swollen in outer half, but very gradually 

 so; the grooves are moderate in width with margins feebly sub- 

 cariniform, feebly arcuate, converging to become contiguous and 

 evanescent at basal fourth; the floors of the grooves are smooth and 

 scarcely concave. 



The mesofemora are very feebly and just noticeably widened in 

 middle third, narrowing slightly and gradually each way; the 

 grooves are a little narrower, margins scarcely subcariniform and 

 more or less granulate, scarcely at all arcuate, converging slightly 

 to become evanescent at basal third without becoming contiguous; 

 floors of grooves nearlj^ plane. 



Metafemora are not swollen, but with the opposed surfaces sub- 

 parallel ; grooves narrower and otherwise as those of the mesofemora. 



The tibia^ are very slightly arcuate in the three males at hand. 



The protibia? are obsoletely subcarinate externally, tarsal grooves 

 more or less obsolete ; the articular cavities are closed. 



The mesotibia> are obsoletely subcarinate externally at basal third, 

 otherwise as in the protibiae. 



The metatibije are more or less rounded, not carinate and obsoletely 

 grooved. 



The tarsi vary in stoutness according to the size of the example. 



The protarsi are about a fifth of their length shorter than a meso- 

 tarsus. Joints 2—4:, inclusive, are subequal in size, apparently very 

 feebly wider than long and together about equal to the fifth ; joint 

 one distinctly longer than wide. 



The mesotarsi are about equal in length to a metatarsus. Joints 

 2^, inclusive, are subequal in size, very feebly longer than wide, 



