AMERICAN MUTILLID^. 229 



24. IVIutilla SPgjeon n. sp. 



% .—Black, rather densely clothed with pale, grayish puliescence, the abdomi- 

 nal segments 2-5 fringed with it, the last two segments with black pubescence; 

 head not as wide as thorax, subrounded behind, compactly punctured ; first joint 

 of flagellum but little tnorc than half as long as the second ; thorax with strong 

 punctures, those of dorsulum being very large and deep; first and second seg- 

 ments sessile, the second dorsal with large, round, separated punctures, the sec- 

 ond ventral with large punctures, but not as regular as on .second dorsal, remain- 

 ing segments strongly and closely punctured, the punctures not near as large as 

 on segment 2, however; wings subhyaline, iridescent, nervures and stigma black, 

 third submarginal cell tolerably distinct. Length 6i mm. 



Arizona : Tucson, on Bigelovia Hartwegi (Tourney). One S])eci- 

 men in collection of U. S. National Museum. 



4. Group waco. 

 This and the following grou}) agree with the preceding groups in 

 the tridentate mandibles, but differ in the small first abdominal seg- 

 ment, which is not sessile with the .second, and in shape approaching 

 that of group occideiitalis. The female head is not enlarged as in 

 the preceding groups, and a distinct pygidium is present. The male, 

 as far as known, has the wings rudimentary as in M. grandiceps. 



FEMALES. 



Black, the second dorsal segment scarlet, segments 3-5 also scarlet sometimes, 

 if not, with black pubescence waco Blake. 



Ferruginous; abdomen from apex of segment 2 black, with silvery pubescence; 

 legs black Iiarnionia n. sp. 



MALE. 



Only the male of waco is known ; it is colored like the female and 

 has rudimentary wings ; the second ventral segment has a median 

 carina terminating in a tooth beyond middle. 



25. Mutilla waco Blake. 



MutUla (Sphserophthalma) waco Blake, Tr. Am. Ent. Soc, iii, 238. ^ , 1871. 

 Sphserophthulma waco Blake, ibid, xiii, 229, '$ , 1886 



Texas. 



26. IVIulilla liarinoiiia n. sp. 



9 . — Ferruginous ; antennse, legs and abdomen from apex of .segment, 2 black ; 

 head and thorax above with some sparse, golden hairs ; second dorsal usually 

 with four yellowish spots, the darker, ferruginous, ground color in the shape of 

 a cross; segments 3 and following with silvery pubescence; a silvery spot at apex 

 of second dorsal medially; thorax pyriform, coarsely punctured above, the sides 

 deeply punctured ; first abdominal segment smaller than second, not sessile with 

 it; second dorsal with elongate punctures; second ventral with large se]>arated 

 punctures, sul)cariuated down middle; jiygidium rugose. 



TKANS. AM. KNT. SOC. XXV. .JANUARY. 1899. 



