AMERICAN IIYMENOPTERA. 251 



at base with pale glittering hairs. Man<libles stout, with a tooth about one 

 third of their length from the tips, a bright ferrugiuous clash before 

 the tooth. Antennse black, the scape thinly clothed with pale glitter- 

 ing pubescence, Ej-es prominent, round, polished. Thorax subquad- 

 rate, sliglitly constricted, reticulate, anterior angles armed with a 

 small tooth : disc clothed with bright golden pubescence, except a 

 rounded black patch on mesothorax, and a longitudinal patch of the 

 sanie color on the metathorax, which is abruptly truncate. Legs 

 black, clothed with pale glittering hairs, the intermediate and pos- 

 terior tibise armed exteriorly with a row of spines; tarsal joints 

 fringed with ferruginous hairs, calcaria pale ferruginous; extremity of anterior 

 tibiffi, and first joint of tarsi, deeply emarginate, with the spur lanceolate. Ab- 

 domen ovate, basal segment broad at its apical margin, clothed with pale 

 golden pubescence, second segment finely punctured, clothed with dense black 

 pubescence, and bearing two large quadrant-shaped fulvous patches, the third 

 and following segments fringed with pale golden pubescence, underside of en- 

 tire insect thinly clothed with pale hairs. Length 8i lines. Five speci- 

 mens. 



Hah. — Mexico. Prof. F. Suraichrast. 



In some specimens the basal joint of abdomen is entirely black. 

 This species is nearly allied to capitata, Smith, but is readily dis- 

 tinguished by the shape of the thorax, and the greater width of the 

 head in proportion to the thorax, as well as the large tooth behind the 

 mandibles. — It gives me great pleasure to dedicate this beautiful spe- 

 cies to my friend 3Ir. Coleman T. Robinson of New York, from whom 

 I have received many entomological favors. 



86. Mutilla capitata, Smith, Cat. Brit. Mus. Hym. Ill, p. 59. No. 2S4. 

 Feviale. — Black ; liead quadrate, wider than the thorax, densely clothed with 



pale golden pubescence. Thorax short, broad, and narrowed posteriorly ; 

 second abdominal segment having a large tranverse yellow macula, clothed 

 with golden j)ubescence. Eyes round. Length S lines. 

 Ilab. — 3Iexico. 



87. Mutilla Lerma, n. sp. 



Female. — Head sub-quadrate, wider than the thorax, posterior angles rounded 

 cheeks produced into an acute tooth, dark ferruginous, vertex thinly clothed 

 with scattered golden pile, interspersed witli a few erect hairs ; face, scape of 

 anteunse, and mandibles rufous, the latter black at tips; ej-es round, promi- 

 nent. Thorax finely reticulated, sub-ovate, contracted behind the mesothorax, 

 which, with the anterior angles is armed at the sides with a stout tooth, meta- 

 thorax gradually rounded posteriorly, with a row of small teeth on each side; 

 lateral declivities j)olished. Legs rufous, clothed with glittering hairs, inter- 

 mediate and posterior tibia; armed with spines. Abdomen ovate, very finely 

 punctured, dark chestnut-brown, second segment having a broad band of aj)- 

 pressed bright golden pubescence, posteriorly emarginate, ajjical margin nearly 

 black; the remaining segments thinly clothed with bright golden i)ubesceuce ; 

 uderside paler than above, finely jiunctured, shining. Length 3 lines. 

 Hub. — Mexico. I'rof. F. Sumichrast. 



