REVISION OF ELEODIINI BLAISDELL. 211 



The metatibiae rounded, rather small at base and gradually thick- 

 ening to apex; tarsal grooves obsolete or feebly indicated, articular 

 cavities closed. 



Tarsi rather long and stout. 



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

 tarsus. Joints two, three, and four equal in length, rather short and 

 distinctly wider than long, and together equal to the length of the 

 fifth ; first about as long as wide. 



Mesotarsi just a little shorter than a metatarsus. Joints two, three, 

 and four equal in length, scarcely as long as wide, and together about 

 equal to the length of the fifth ; first joint a little longer than wide. 



The metatarsi are about half as long as their metatibia. Joints 

 two and three equal in length and scarcely longer than wide, and 

 together about as long as the fourth ; first joint about one-and-a- 

 half times longer than wide. 



DENTIPES GROUP, Section A. 



The constituents of the present section have the integuments more 

 or less opaque, more or less asperately and muricately sculptured; 

 the surface is never normally entirely glabrous nor shining; further- 

 more, the species are undoubtedly genetically related by having the 

 inferior surface of the cauda, when present, formed by the dilated 

 apical extremity of the epipleura\ 



A part of the species are ecaudate, the elytral apices being but 

 slightly produced, and in the indifferent stage of development. There 

 is also a tendency to hirsuteness. AVith the development of the 

 elytral cauda, the femoral teeth become abortive. 



The protil)ial spurs are acute and quite similar in the sexes, not 

 strongly divergent as in the Obscura Group, and instead have a tend- 

 ency to become parallel and backwardly curved. 



The mentum is distinctly bearded in a part of the species, but 

 here it occurs as a part of a tendency to general pilosity. The head 

 is moderate ; the articular cavities of the tibia? are nearly closed, and 

 as a rule the tarsal grooves of the tibiae are scabrous. The abdomen 

 is horizontal in both sexes, and the intercoxal salient is ahvays dis- 

 tinctly wider than the metasternal process. 



The genital characters of this section are not sufficiently character- 

 istic to be of practical use when tabulated. 



The male genital characters present nothing more than those enu- 

 merated as subgeneric. The most imj^ortant character is the presence 

 of the membranous groove on the apicale. 



In the female the genital segment is triangular or trapezoidal in 

 outline, the dorsal plate of the valves is concave and not retracted, 

 the submarginal groove is scarcely visible from above, the appendage 

 flattened or conical, the superior pudendal membrane does not reach 



