AMERICAN HYMENOPTERA. 229 



nients fringed with bright fulvous pubescence ; basal segment black. Length 

 7 lines, expanse of wings 10 lines. 



Female. — Head deep black, densely punctured, wider than the thorax, with 

 scattered, erect black hairs j eyes large, ovate, entire; antennis black. Thorax 

 ^ ^ ferruginous, elongate quadrate, sides slightly concave ; metathorax 

 Y^ abruptly truncate behind. Legs shining black, clothed with glittering 

 i hairs. Abdomen ovate, black, apical margin of basal segment fringed 

 y) with pale golden pubescence, on the dorsal surface of second segment 

 .■^-v there are two elongate quadrate patches of dense pale golden pubes- 

 cence, extending half way to the apical margin, which is ornamented 

 with a broad band of pale golden pubescence having the interior mar- 

 gin sinuate ; the remaining segments have a patch of pale pubescence 

 on each side, together forming a V shaped line to the apex ; beneath, the mar- 

 gins of the segments are fringed with pale glittering hairs. Length 6 lines. 

 Hah. — Mexico. Prof. F. Sumichrast. In some individuals the 

 head is ferruginous. • 



6. Mutilla Promethea, n. sp. 



Male. — Rufo-ferruginous, head round, closely punctured, face below the line 

 of the eyes black, clothed with obscure yellowish hairs, eyes large, ovate, em- 

 arginate, mandibles black, with a rufous dash before the tips, which are biden- 

 tate. Thorax elongate-subquadrate, rounded in front, thinly clothed with ob- 

 scure rufous pubescence, closely punctured, the mesothorax with two deeply 

 impressed longitudinal lines, metathorax rounded, coarsely reticulate. Te- 

 gulfe finely punctured, fuscous. Wings ample, fuliginous, marginal cell elono-- 

 ate-ovate, truncate at tip, second submarginal subquadrate, pointed towards 

 base, receiving the first recurrent nervure at middle, third hexagonal, receiv- 

 ing the second recurrent beyond the middle. Legs black, thinly clothed with 

 pale hairs. Abdomen ovate, basal segment eampanulate, black, finely punc- 

 tured, second and following segments rufo-ferruginous, finely punctured, the 

 apical margins fuscous, fringed with blackish pubescence, underside same as 

 above. Length 6-^ lines, expanse of wings 12 lines. 

 Hah. — Louisiana. 



7. Mutilla Sayi, n. sp. 



Male. — Head transverse, rounded, black, moderately punctured, face thinly 

 clothed with whitish pubescence; antennse piceous, scape clothed with glitter- 

 ing pubescence; eyes large, ovate emarginate ; mandibles dark rufous before 

 the tip. Thorax robust, ovate, narrowed posteriorly, pro- and mesothorax ru- 

 fous, closely punctured, the latter bearing three discal, longitudinal, slightly 

 impressed lines; scutellum finely punctured; metathorax roundly truncate, 

 coarsely re ticulate, dorsal groove not extending to the middle; sides closely 

 punctured. Tegulse ovate, minutely punctured. Wings fuliginous, marginal 

 cell elongate ovate, obliquely truncate at tip, first submarginal long, narrowed 

 to base, second similar in form and j)ointed towards base, its apical nervure 

 arcuate, third irregularly hexagonal, its outer angles with abbreviated nervures. 

 Legs black, thinly clothed with glittering hairs, calcaria white. Abdomen 

 ovate, narrowed to apex, basal segment black, closely punctured, subsessile 

 with the second, which is bright ferruginous, finely punctured, the punctures 

 becoming finer and denser at sides, apical margin blackish, fringed with 

 black pubescence; segments dark ferruginous, finely punctured, fringed with 



TRA.SS. AMER. ENT. SOC. (30) FEBRUARY, 1871. 



