AMERICAN HYMENOPTERA. 245 



clothod with bright golden pubescence, a round black spot on the disc, on each 

 side of which is a small tubercle. Legs black, thinly clothed with glittering 

 hairs. Abdomen ovate, narrowed to apex, basal segment black, closely punc- 

 tured, apical margin clothed with bright, pale golden pubescence; second seg- 

 ment thinlj' clothed with glittering golden pubescence, bearing on disc a large 

 sub-triangular black patch, below which the tegument has a pale rufous tinge 

 apical margin fringed with silvery pubescence, third segment black, apical 

 segments adorned with pale golden pubescence; lateral sutures fringed with 

 silverj' pile: underside dark ferruginous. Length 4 — 4i lines. 

 Hah. — Mexico. Prof. F. Sumichrast. 



66. Mutilla Xalisco, n. sp. 



Female. — Head round, not as wide as the thorax, clothed with bright golden 

 pubescence; scape of antennsc and mandibles rufous, tips of the latter black; 

 ^~\ eyes round, large, prominent. Thorax short, subovate, closely reticu- 

 ^^ late, mesothorax black, metathorax clothed with bright golden pubes- 

 r^^ cenee, roundly truncate beliind. Legs rufo-piceous, clothed with scat- 

 V^ tered glittering hairs, intermediate and posterior tibiic armed with 

 spines, calcaria white. Abdomen ovate, basal segment clothed with 

 silvery pubescence on its apical margin, second segment black, having 

 a broad band of fine, golden pubescence, slightly contracted at the 

 middle, third, with a small central patch of pale pubescence, following 

 segments similarly clothed ; underside dark chestnut brown, irregularly punc- 

 tured. Length 2i — 3 lines. 



Ifib. — Mexico. Prof. F. Sumichrast. 



67. Mutilla TJlkei, Cresson, Proc. Ent. Soc. Phil. Vol. IV, p. 387. 



Female. — Black; thorax clothed with dense silvery pile, abdomen ferruginous 

 head wider than the thorax, eyes round. Length SJ lines. 



Hull. — Lower California. 



68. Mutilla nigriceps, Cresson, Proc. Ent. Soc. Phil. Vol. IV, p. 110. 

 Female.— Ilui'ous : head, antennse, and base and apex of abdomen black, the 



latter having a pale yellowish baud before the tip; eyes round. Length 6 7 



lines. 



JLib. — Cuba. 



69. Mutilla floridana, n. sp. 



Female.— Ui-dd round, black, vertex clothed with pale golden pubescence, in- 

 terspersed with scattered erect black hairs; eyes ovate. Thorax ovate, nar-" 

 rowed posteriorly, rufo-ferruginous, closely punctured, the mesothorax pro- 

 duced laterally into obtuse tubercles, and bearing long, erect black hairs, meta- 

 thorax abruptly truncate. Legs black, except the posterior femora, which are 

 rufo-fuscous, clothed with pale hairs, intermediate and posterior tibiae armed 

 with short strong spines. Abdomen ovate, black, sparsely clothed with long 

 erect black hairs, basal segment campanulate, clothed with pale golden pubes- 

 cence, second segment having at the base a round spot of pale golden pubes- 

 cence, and two similarly clothed subquadrate lateral spots at the apical mar- 

 gin. Underside of second segment shining, finely punctured, ventral segments 

 fringed with pale glittering pubescence. Length 4i lines. 



IMj. — Florida. Harris Collection. This may be a variety of M. 

 trisif/nata, but is easily distinguished by the shape and color of the 



TnAXS. AMKR. ENT. SOC. (32) FEBRLAUV, 1871. 



