AMERICAN MUTILLID^. 243 



rather undersized, from British Columbia, sent by Mr. W. H. Har- 

 rington, has the fulvous pubescence of thorax thinned to such an 

 extent that the fulvous color is barely visible to the naked eye. 



59. Mutilla ooliracea Blake. 



Mutilla ochraceii Blake, Tr. Am. Ent. Soc, vii, 247, % , 1879. 



Sphserophthalma ochracea Blake, ibid, xiii, 228, % , 1886 (not 9 ; see 31. progne). 



Kansas ; Colorado ; Nevada ; California. That which Blake has 

 described as the female of ochracea is not related to the male ; it 

 belongs in another section of the genus. 



60. Mutilla bioculata Cress. 



Mutilla hioculata Cre.sson, Proc. Ent. Soc. Phila., iv, 431, % , 1865. 



Mutilla hioculata Cresson, Wheeler's Surv. W. 100th Mer., Zool., 709. J , 1875. 



Sphserophthalma hioculata Blake, 1. c, xiii, 224, % , 1886. 



Texas ; Colorado ; South Dakota : Pierre. Cresson has described 

 the female of this species which sex I have not seen. It is .said to 

 have the head and thorax above and second dorsal segment with 

 long yellowish-ferruginous pubescence, otherwise with black pubes- 

 cence. Is 7 lines (14 mm.) in length, and was found in Nevada. 

 It may be the same as creusa. 



This is a variable species as to size, ranging from 12-25 mm. in 

 length. 



61. IVIutilla pyrrtius n. sp. 



% . — Black, segment 2 above and beneath ferruginous, the second dorsal with 

 two large, paler spots; head and thorax above as far as middle segment with ful- 

 vous pubescence, that on the apical half of second dorsal segment short and yel- 

 lower, otherwise the pul)escence is black throughout the insect ; reticulation of 

 middle segment coarse and irregular; first segment tolerably nodose, with large 

 separated punctures, the ventral carina somewhat produced at both ends so that 

 it is bidentate ; wings fuscous, with three distinct submarginal cells, the second 

 nearly as long as the first and widely separated above. Length 14 mm. 



Florida: Enterprise, May 11th. One specimen. In the color of 

 segment 2, this species has a superficial resemblance to castor and 

 fenestrata. 



62. Mutilla pliaou n. sp. 



%. — Black, with black pubescence, except on abdomen from, and inclusive of, 

 second dorsal to apex, ventrals 3-6 laterally with long, bright scarlet pubescence ; 

 first segment tolerably nodose, with coarse, confluent punctures, the ventral 

 carina in the form of a blunt angle; punctures of second ventral segment sparse 

 medially ; wings fuscous, third submarginal indistinct, the second smallei-, tho\)gh 

 nearly as long as first; first and second transverso-cubital veins separated ai)ove 

 by a distance less than that between the base of second submarginal cell and 

 re('urrent vein. Length 13 mm. 



Arizona. One specimen. 



TRANS. AM. ENT. SOC. XXV. FEBRUARY. 1899. 



