145 



transverse row near the hind margin. The legs yellowish brown, the 

 hind femora with the apex a little dusky above and with three longitu- 

 dinal, and numerous obliquely transverse, dusky bars on the outer face. 



The anterior femora but little longer than the pronotum ; the lower, 

 front margin armed with from one to four spines. Hind femora of the 

 male of average width but very stout, the lower, outer carina prominent, 

 the inferior sulcus rather narrow and very deep, the sides meeting at an 

 angle above. The spines of the outer carina are arranged in three sets, the 

 basal set containing 4 equi-distant graduated spines the apical one largest ; 

 the middle set contains but a single strong spine equal in size to the one 

 before it and separated from it as well as from the first one of the apical 

 set, by a space almost twice as great as between the members of the basal 

 set ; the apical set of 4 small sub-equal spines. The inner carina is 

 armed with about 16 small sub-equal spines. The female has the inner 

 carina also armed in like manner with still smaller spines. Hind tibia- of 

 male straight, a little longer than the femora. 



Measurements : Male— Length of body, 14 mm. ; of pronotum, 5.2 

 mm.; of front femora, 6.2 mm. ; of hind femora, 16.5 mm. ; of hindtibhi-, 

 17 mm. 



C. Brunner, in his Monographic, has evidently described this species un- 

 der the name of C. lapidicola Burm. At the close of his description he 

 says of lapidicola : " Neither the diagnosis of Burmeister nor the descrip- 

 tion of Scudder are sufficiently exact to recognize the species ; for which 

 reason I have designated by this name any new species whatever at 

 hand." In another place he describes under the name C. uhleri Scudder, a 

 species having the spines on the outer carina of the hind femora equal 

 in length ; whereas Mr. Scudder, in his description of uhleri distinctly 

 states that they are " of unequal length, and irregularly arranged." 



Specimens of the insect described above were sent to Mr. Scudder, who 

 pronounced my identification correct. In central Indiana uhleri is the 

 most common species of Ceathophilus. It is found from July to Novem- 

 ber beneath rails and logs in rather dry situations. The young have been 

 taken from similar places in December and February, but evidently the 

 larger number of eggs do not hatch until spring. 



dd. Hind femora of male with the inferior sulcus shallow ; the spines 

 of the outer lower carina sub-equal in size and equi-distant 

 from one another. 



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