8 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



ing legs, with thin to moderate argillaceous coating with alutaceous 

 surface sculpture. 



Anterior femora with rather heavy argillaceous coating and scattered 

 indistinct punctures bearing short, fine, inconspicuous yellow hairlike 

 setae; foretibiae with two terminal teeth and one lateral close by; 

 anterior spur hooked. Middle and hind femora with thin argillaceous 

 coating and fine hair bearing indistinct punctures as on profemur; 

 tibiae very weakly arcuate; first tarsal segment twice as long as long 

 spur, slightly longer than remaining four segments combined. 



Female. — Six specimens: Length 3.33 mm, width 1.39 mm. The 

 only noticeable differences from the male are the straight spur of the 

 anterior tibia and the much wider, normal penultimate abdominal 

 segment. 



Specimens. — Specimens on hand were all collected by H. F. 

 Howden 21 to 28 miles east of Villa Union, Sinaloa, Mexico, July 7, 

 25, 26, 1964. Specimens are in Canadian National Collection, U.S. 

 National Museum, and the private collection of H. F. Howden. 



Literature Cited 



Islas S., Federico 



1958. Un genero y especie nuevos de la subfamilia Aphodiinae en Mexico 

 (Col. Scarabaeidae) . Anal. Inst. Biol., vol. 29, nos. 1 and 2, pp. 

 343-348, 1 fig. 



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