NORTH AMERICAN COLEOPTERA. 167 



thirds. In the female the form of tlie pygidium is similar, Vjut distinctly 

 less convex. Fresh specimens appear to be of a bright green, which is 

 subject to change to a deep blue when the specimens are long immersed 

 in alcohol, as I am informed by Dr. Gr. M. Levette, who has demon- 

 strated the fact by actual experiment. The deep blue of certain speci- 

 mens of C. cij I melius is undoubtedly due to the same cause. C. Cliev. 

 rolatii Harold t, Mex. and Grua. ) appears to be allied to this differing by 

 the more polished surface and evenly and moderately convex pygidium 

 of the male. Length D-ll mm. Ariz. 



14. C. viridis Beaiiv. ( Copris), Ins. Afr. et Amer. 1805, p. 2.3, pi. 3, fig. 2; Lec.^ 

 Col. Kans. 1859, p. 11 ; Harold, 1. c. p. 1!2; Horn, 1. c. p. 47; Ateuchus obsoletus 

 Say,Jour. Acad. 1823, ser. 1,111, p. 2nS: ed. Lee. 1869, It, p. 133 ; Onthophagiis viri- 

 dicatm Say, Bost. Jour. 1835, 1, p. 173; ed. Lee. 1869, II, p. 648; C. viridulus Dej., 

 Cat. 3d ed. 1836, p. 152; C. metaUicus Sturm, Cat. 1843, p. 104. 



Hind thighs not margined in front. Length 4:— 5 mm. S. and W. 



States, Central Amer. 



15. C perplexus Lee. Jour. Acad. 1847, ser. 2, I, p. 8.6; Col. Kans. 1859, p. 

 11 ; Harold, 1. c. p. 67 : Horn, 1. c. p. 46 : C. cuprascens et C. humilis Dej., Cat. ed- 

 3, p. 152. 



The hind thighs are said by Harold to be not margined in front, but 

 in the specimens examined by me the marginal line although fine is dis- 

 tinct. Length 5-5.5 mm. Cal., 111., Ark., Texas, Max., Yucatan. 



PHAW.EUS McLeay. 



As descriptions of our species of Phanueus have not hitherto been 

 brought together, it is hoped that the following notes and table may be 

 of interest. 



Fully developed males sometimes exhibit the most marked difference*' 

 among the species, but these are not always available for study, and in 

 the table little attention has been given to the male characters. The an- 

 terior tarsi are always absent in the males, but have been found to be 

 present in the females of our species except in jjZwto, in which they were 

 missing in the few specimens examined. The joints of the anterior tarsi 

 of the females are smooth and subcj'lindrical, the first longer and a little 

 stouter, the second, third, and fourth subequal, the fifth longer, somewhat 

 compressed, and in the specimens examined with the apex rounded 

 (iffneus), truncate {difformis carnifex)^ or (^quadridens^ triangularis^ 

 mexicauus~) more or less oblique, the lower angle being produced and 

 acute in the last form. The last joint has two or more long setae at the 

 tip, and there is also not infrequently a seta on the inferior apical angle 

 of one or more of the short intermediate joints. To show the extent of 



