458 PROCEEDINGS OF THE NATIONAL MUSEUM. Vol.41. 



not as robust as the posterior one; first dorsal with large punctures 

 in middle, second dorsal with uniform, rather close, and large punc- 

 tures; tarsi not very strongly spined. Rufo-ferruginous; antennae, 

 legs, apex of the second and the following segments black or piceous; 

 appressed, short, reddish-golden pubescence on head, thorax and 

 most of second dorsal segment; insect generally with sparse, erect 

 black hair; legs, apex of second and following segments, broadly 

 interrupted laterally on the second and third with silvery pubescence; 

 apex of second and a more or less defined basal middle of second 

 dorsal segment with black hair. 



Ames, Iowa, one female (type); Riley County, Kansas, July and 

 September, two females, collected by Mr. C. L. Marlatt; and one 

 female from Colorado, C. F. Baker collection. 



Type.— Cat. No. 14129, U.S.N.M. 



The specimen from Colorado has the basal spot on the second dorsal 

 more sharply defined and the anterior tooth of the carina of the first 

 ventral segment is larger than the posterior. 



Except for some minor points this agrees well with the descrip- 

 tion of sparsa (Fox). It may eventually prove to be a variety of 

 Fox's species. 



DASYMUTILLA FERRUGATELLA, new species. 



Superficially like ferrugata, but the carina of the first ventral seg- 

 ment and the relation of antennal joints are different. 



Female.— Length 7 mm. Fourth joint of antennse not or scarcely 

 narrowed below, third joint much shorter than the fourth and fifth; 

 cheeks more sparsely punctured than the front; dorsulum more 

 coarsely punctured than the front; metapleurae without large punc- 

 tures; sides of propodeum with large, scattered punctures; first 

 dorsal with a few large punctures in middle; second dorsal uniformly, 

 sparsely punctured; carina of first ventral bidentate, teeth of equal 

 size. Colored Vike ferrugata. 



Pennsylvania (type) one female, C. F. Baker collection; Louisiana, 

 one female, C. F. Baker collection. 



Type.— Cat. No. 14130, U.S.N.M. 



DASYMUTILLA COLORADELLA, new species. 



Female.— Length 10 mm. Fourth antennal joint not, or scarcely, 

 narrowed beneath, the third joint distinctly shorter than four plus 

 five; cheeks more sparsely punctured than the front; dorsulum with 

 large, close punctures; sides of propodeum more sparsely punctured; 

 metapleurjB mth appressed, whitish pubescence, with a few large 

 punctures ; carina of the first ventral segment bidentate, the anterior 

 tooth robust, and rounded, the posterior one slender, acute, trian- 

 gular; first dorsal with large punctures; second dorsal with sparse, 

 elongate punctures (basally the punctures are circular); legs rather 



