AMERICAN HYMENOPTERA. 243 



teriorl}', elotlied with coarse black, meso- and metathorax with coarse ochra- 

 ceoiis i)ubescence, sides of the Jatter black, abruptly truncate. Legs 

 blat'k, clothed with scattered glittering hairs, intermediate and pos- 

 terior tibiaj armed with spines. Abdomen ovate, basal segment clothed 

 with pale hairs; second segment closely punctured, having two small 

 ovate spots at the base, and a broad, internally emarginate band of 

 coarse ochraceov.s pubescence, pointed towards the apex; apical seg- 

 ments clothed with similar pubescence; underside of entire insect 

 \/ clothed with pale hairs. Length 5 lines. 



I/(il>. — Mexico. Prof. F. Suiuichrast. 



60. Mutilla Ariadne, n. sp. 



Female. — Head rounded, not quite as wide as the thorax, black, rugose, with 

 a few scattered erect hairs; antennse black; eyes round, polished. 

 Thorax short, suddenly narrowed behind, clothed with bright "olden 

 pubescence; mesothorax with a triangular black, granulate patch; 

 niesothorax abruptly truncate ; sides deeply compressed, coarsely 

 punctured, clothed with silvery pubescence. Legs black, clothed with 

 scattered silvery hairs, intermediate and posterior tibia armed exter- 

 iorly with a row of spines. Abdomen ovate, basal segment black, its 

 apical margin clothed with silvery pubescence; second seo-ment 

 coarsely punctured, clothed with bright golden pubescence, having on the disk 

 a large ovate black patch, extending to the basal margin, on each side of which 

 is a small one of the same color, with thin black pubescence, apical margin 

 black; third and fourth segments clothed with dense black pubescence, fifth 

 bright golden, apex black. Underside black, closely punctured, ventral sc"-- 

 ments fringed with pale golden mixed with silvery hairs. Length 3* — 5 lines. 



Ilab. — Mexico. Prof. F. Sumichrast. 



Ill some specimens the head is clothed with a dense golden pubes- 

 cence. 



61. Mutilla Solola, n. sp. 



Female. — Black; head rounded, densely clothed with coarse, deep golden pu- 

 bescence; antennae black; eyes round, prominent. Thorax short, clothed simi- 

 lar to the head, except around black patch on the disc of mesothorax, which is 

 laterally produced into obtuse angles, metathorax abruptly truncate behind. 

 Legs black, thinly clothed with pale hairs; intermediate and posterior tibire 

 armed exteriorly with a row of strong spines, calcaria black. Abdomen broadly 

 ovate, closely punctured, basal segment small, second segment having a broad 

 emarginate band of deep golden pubescence at its apical margin, and two 

 round spots of the same color, placed laterally near the base ; third segment 

 clothed with deep black, apical segments with pale golden pubescence. Un- 

 derside coarsely punctured, lateral carinse distinct, ventral segments fringed 

 with pale glittering hairs. Length .31 — i lines. 



Hub. — Guatemala. Prof. F. Sumichrast. 



Closely allied to J/. Cr'ssoni 



