AMERICAN MUTILLID^. 239 



42. .^Iiitilla qiia<lriguttata Say. 



.? Mnfilla vagans Fabricius, Ent. Syst. SuppL, 282, 9. 1"98. 



Mntilla qnadrignftata Say, West. Quart. Reporter, ii, 74. 9 , 1823. 



MuHlla efectra Blake. Tr. Am. Ent. Soc, iv, 75, 9 . 1872. 



Sphasrophthalma quadnguttata Blake, ibid, xiii, 239, 9 . 1886. 



Sphserophthalma electra Blake, ibid, xiii, 248, 9) 1886. 



Sphierophthnhna quadrigiMa var. biguttata Cockerell. Ent. New, vi, 63. 9 , 1895. 



Texas ; Kansas. The legs vary from red to black, and the abdo- 

 men has or has not the .segments fringed with silvery pubescence. 

 The second dorsal may have four, two or no pale spots, or these 

 may be so indistinct as to be scarcely discernible. The .series before 

 me shows the intergradation very nicely. 



The var. biguttata may be vagans Fabricius. 



43. lYItitilla ferrugata Fabr. 



Mntilla ferrugnta Fai)ri<'ius, Syst. Piez., 438, 9, 1804. 

 Sphxruphthnlma ferrugata Blake, Tr. Am. Ent. Soc, xiii. 239, 9 , 1886. 



Massachusetts; Pennsylvania; Illinois; Wisconsin. This species, 

 although well marked in the shape of ventral carina of first segment, 

 has been confused in collections with several species having a 

 superficial resemblance, i. e., the color of the body. For instance, no 

 less than four species were found under ferrugata in the collection of 

 the Am. Entom. Society. 



44. MutJIla vesta Cress. 



Mutilla vesta Oresson, Proc. Ent. Soc. Phila., iv, 436, 9 • 1865. 

 Sphxrophthalma vesta Blake, Tr. Am. Ent. Soc, xiii, 240, 9 , 1886. 



This species inhabits the region west and northwest of Texas and 

 Kansas, as far as British Columbia. Specimens from the Eastern 

 States differ only in being less pubescent. 31. macra (:= hispida) is 

 perhaps the male of vesta. 



45. Iflutilla sappho n. sp. 



9. — Ferruginous, including legs, except tarsi, which are fuscous; second seg- 

 ment with or without two pale spots; head narrower than thorax, with distinct 

 separated punctures, postero-lateral angles rounded; first joint of flagellum dis- 

 tinctly shorter than two following united ; thorax elongate, pyriform, reticulated 

 above ; carina of first ventral segment somewhat emarginate medially so that it 

 presents a bidentate appearance ; second dorsal with elongate punctures, having 

 the appearance of being striato-punctate, the second ventral with deeper, stronger 

 punctures; segments 2-6 fringed with pale pubescence; pygidium black, coarsely 

 striated longitudinally. Length 7-12 mm. 



Georgia ; Florida : Capron, in March, Lake Worth (Mrs. Slossou). 

 Eleven specimens. In the red legs and apical segments this species 

 may be at once distinguished from ferrugata, under which name it 

 will, no doubt, be found in many collections. 



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



