AMERI(;AN MUTlLLIDiE. 



245 



ment, which leads me to believe that I have judged correctly in 

 placing the specimens before me as fenestrata, inasmuch as some 

 specimens have no trace of pale spots on segment 2. 



67. Miitilla ageiior n. sp. 



%. — Black, with black puhescence: second dorsal segment with a transverse, 

 broad, reddish yellow fascia, not extending on base or apex ; this light-colored 

 portion of the segment with yellowish pubescence; second ventral entirely 

 black; anteonfe about as long as head and thorax; first dorsal segment less 

 nodose than in castor, rather broad, convex, with large, coarse punctures, the 

 ventral carina a little prominent posteriorly; second dorsal with distinct separa- 

 ted punctures, the second ventral with much larger punctures; wings fuscons, 

 third subniarginal cell indistinct, the first and second transverso-cubital veins 

 separated above. Length 10 mm. 



Illinois: Algonquin, August 14th (Nason) ; British Columbia. 

 Two specimens. This is a smaller and comparatively stouter insect 

 than Lepeletierii. 



68. M tit ilia niacra Cress. 



Mutilla macra Cresson, Proc. Ent. Soc. Phila., iv, 429, % , 1865. 

 Sphierophtlialma hispida Blake, Tr. Am. Ent. Soc, xiii. 226. % , 1886. 

 ^phxiophthalma macra Blake, ibid, 230, % , 1886. 



New Jersey ; Delaware ; Illinois : Algonquin, July and August 

 (Nason) ; Colorado ; Montana. Blake's hispida and macra are 

 inseparable. 



69. Mutilla atlinetUN Blake. 



Mutilla adm.etas Blake, Tr. Am. Ent. Soc , iv, 74, % , 1872. 

 Sphierophthalma admetis Blake, ibid, xiii, 229, % , 1886. 



Texas; Colorado; Montana. Varies from 7-13 mm. in length. 



70. Mutilla obscura Blake. 



Mntilla [Fiphxroph.) obscura Blake, Tr. Am. Ent. Soc, iii, 239. % , 1871. 

 Sphserophthalma obscura Blake, ibid, xiii, 231, % , 1886. 

 Sph-^rophthalma mucer [macerata) Blake, ibid, 237, 286, % , 1886. 

 Sph'erophthalma macera Dalle Torre, Catal, viii, 56, 1897. 



Massachusetts (Blake) ; North Carolina ; Texas ; Colorado. 31. 

 macer, which name was subsequently changed to macerata by its 

 author, is identical with obscura. The size is variable fully as much 

 as in admetis. The specimens of inacer mentioned by Blake as 

 having the pubescence entirely black are referable to admetus. 



71. Mutilla apicalala Blake. 



Mntilla {Sphxroph.) aplcalata Blake, Tr. Am. Ent. Soc, iii, 238, % , 1871. 

 Hphserophthalma apicalata Blake, ibid, xiii, 230, % , 1887. 



Mexico ; Texas. 



TRANS. AM. ENT. SOC. XXV. FKBRUARY, 1899. 



