NORTH AMERICAN HYMENOPTERA. 197 



sometimes tinged with reddish, and in one specimen the large basal segment above 

 is tinged with reddish ; the ventral segments have an apical fringe of silvery 

 cinereous pubescence. Length 9.5-11 mm. (Cresson.) 



Hab. — Southern and Western States. 



jVIutilla floridaiia Blake. 



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

 terspersed with scattered erect black hairs ; eyes ovate. Thorax ovate, narrowed 

 posteriorly, rufo-ferruginous, closely punctured, the mesothorax produced later- 

 ally into obtuse tubercles, and bearing long, erect, black hairs, metathorax 

 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 pubescence, 

 second segment having at the base a round spot of pale golden pubescence, and 

 two similarly clothed subquadrate lateral spots at the apical margin ; under 

 side of second segment shining, finely punctured, ventral segments fringed with 

 pale glittering pubescence. Length 9 mm. 



Hab. — Florida. Harris collection. 



This may be a variety of M. trmgnata, but is easily distinguished 

 by the shape and color of the thorax, and the basal segment of the 

 abdomen not being petiolate. 



]?Iutilla tolteca Blake. 



Female. — Head rounded, wider than the thorax, closely and finely p>inctured, 

 densely clothed with fine, pale golden pubescence; cheeks and a patch behind 

 each eye black ; eyes ovate, large ; antennae and mandibles dark ferruginous, 

 tips of the latter black. Thorax ovate, narrowed behind, closely reticulate, 

 dark ferruginous, anterior margin black, with a small ovate tubercle on each 

 side, mesothorax with two small irregularly defined patches of pale golden 

 pubescence, behind each of which is a small obtuse tooth ; metathorax rounded 

 posteriorly, with two lateral stripes of pale golden pubescence. Legs 

 ferruginous, thinly clothed with glittering hairs; calcaria whiti.sh. 

 Abdomen ovate, suddenly narrowed to apex, basal segment subcylin- 

 drical, densely clothed with pale golden pubescence, mixed with scat- 

 tered erect pale hairs; second segment densely punctured, dark ferru- 

 ginous on the sides and anterior margin, near which are two ovate, 

 exteriorly emargiuate maculae of pale golden pubescence, behind which 

 the dorsal surface of the segment is nearly black ; on the apical mar- 

 gin is a band of pale golden pubescence, deeply emarginate infernally 

 at the middle, and which extends along the under side of the segment to the 

 base ; the third segment has a band of the same, with a small triangular, dark 

 ferruginous space at middle ; the remaining segments banded in the same man- 

 ner, all having lateral blackish patches ; apical segments closely punctured ; 

 under side of second segment paler than above, closely punctured, and having a 

 central longitudinal carina. Length 8. .5 mm. 



Hab. — Mexico. Prof. F. Sumichrast. 



