AMERICAN MUTILLID^. 269 



158. IVIiitilla iiiyrmicoides Ckll. 



Mntilla panmla Biake, Tr. Am. Ent. Soc. xiii, 206, 9, 1886 (nee Mutilla 



parviila Fabr.). 

 Sphserophthalma myrmicoides Cockerel 1, Ent. News, vi, 62, f, 1695. 



Alabama; Texas; Colorado. Cockerel 1 's ???t/r?mcoicZes is synony- 

 mous with parvula Blake, but as the latter name is preoccupied, 

 will have to be adopted for this species. 



159. Iflulilla zepliyritis n. sp. 



9 .—Ferruginous, clothed with a long, tolerably dense, pale pubescence; 

 abdominal segment 2 and following with a fringe of pale hair; legs paler than 

 body; head with coarse, confluent punctures, about as wide as thorax; first joint 

 of flagellum about one-quarter longer than second; thorax pyriform, obtuse 

 behind, nigoso-punctate above; first abdominal segment sessile with second, the 

 latter above with sparse, rather feeble punctures, on the ventral surface the 

 punctures are much stronger and less scattered; pygidium sharply margined 

 laterally, its sculpture indistinct. Length 7 mm. 



California : Los Angeles County in May (Coquillett). One speci- 

 men belonging to the U. S. National Museum. 



160. iHiitilla sanctse-feae Ckll. and Fox. 



Mntilla sanctx-fese Cockerell and Fox, Proc. Acad. Nat. Sci. Phila., 137, 

 9. 1897. 



New Mexico. Only the unique type seen. 



Group hexagona (= Mutilla Blake, pt.). 

 Eyes strongly ovate, facetted, eraarginate on inner margin in the 

 male. Mandibles bidentate, emarginate on outer margin in the 

 male, or rather with a blunt process near the base, which, in at 

 least one species, is scarcely developed. Abdomen with segments 

 1 and 2 sessile, uniting evenly. Thorax of female oblong. 



MALES. 



Process at base of mandibles largely developed, rarely wanting 2. 



Process at base of mandibles absent or rudimentary, the emargination therefore 

 small y 



2. Pubescence of abdomen blackish or griseus, last ventral plate bituberculate- .3. 

 Pubescence of abdomen yellow 4. 



3. Head and thorax entirely black, with a mixed black and griseus pubescence; 



middle segment above with a smooth, median channel. 



Iie.vap:oiia Say. 

 Head and thorax reddish in part 5_ 



4. Scape slender, scarcely widened at apex, not barbate; pubescence of head and 



thorax pale iieslor n. sp. 



Scape stouter, distinctly wider at apex, and bearing a bunch of dense, pale 

 hairs ; pubescence of head and thorax black Grotei Blake. 



TRAN.S. AM. ENT. SOC. XXV. MARCH. 1899. 



