NORTH AMERICAN HYMENOPTERA. 217 



ceous, sericeous pnbesceuce ; legs piceous, densely clothed with pale ochraceous 

 pubescence; ti'.>i;u with a row of long, acute, black spines; abdomen ovate, con- 

 vex above; basal segment small, quadrate, punctured, clothed with dense, pale 

 ochraceous, silky pubescence ; second segment large, dull rufous, tinged with 

 brown, densely, deeply and confluently punctured, clothed with ochraceous pu- 

 bescence, especially on the extreme sides and on the sides of the apical margin 

 where it is very dense and appressed ; on the apical middle of this segment a 

 large black spot, clothed with black pubescence, and on each extreme side another 

 blackish spot, bordered behind with the ochraceous margin ; remaining segments 

 piceous, or rufo-piceous, densely clothed, especially at tip, with a short, appressed, 

 pale ochraceous pubescence. Length 12.5 mm. (Cressou.) 

 Hub. — Cuba. 



Sphierophttialnia erndita Cresson. 



Female. — Form elongate, subrobust, black ; head narrower than thorax, not 

 broader behind the eyes ; thorax subquadrate ; narrowed behind, and slightly so 

 in front; abdomen ovate; head, thorax, abdomen above and sides of apical half 

 of venter clothed with a long, dense, erect, ochraceous pubescence ; body beneath 

 and legs sparsely clothed with black hairs, long on the femora beneath. Length 

 13 mm. (Cressou.) 



Hab. — California. 



Allied to Sackenii Cresson. 



Spliieroplitlialina Siclieliaua Sauss. 



Female. — Head rounded, not quite as wide as thorax, densely clothed with 

 ochraceous pubescence ; scape of antennae cavStaneous, clothed with glittering 

 hairs, flagellum fuscous ; mandibles black ; eyes round, prominent, polished ; 

 thorax robust, narrowed posteriorly ; prothorax densely clothed with ochraceous 

 pubescence, mesothorax finely rugose, black, metathorax abruptly truncate, 

 clothed with ochraceous pubescence ; sides dark rufous, coarsely punctured ; legs 

 bright ferruginous, clothed with long, pale glittering hairs, femora punctured, 

 intermediate and posterior tibite armed exteriorly with black spines, knees and 

 calcaria blackish ; abdomen broadly ovate, basal segment sessile with the second, 

 its apical margin fringed with ochraceous pubescence ; second segment dark 

 rufous, coarsely punctured, having on the disc at middle two small patches of 

 lilack pubescence, margined laterally with ochraceous, apical margin blackish ; 

 third and fourth segments clothed with pale yellow, glittering pubescence ; apex 

 black ; under side bright ferruginous, coarsely punctured. Length 14 mm. 



Hab. — Arizona, Mexico. 



Spliierophtlialiiia paciflca Cressou. 



Female. — Eobu.st, black ; head large, quadrate, slightly broader than thorax, 

 extended and widened behind the eyes, occiput truncate ; thorax short, sub- 

 quadrate, broad anteriorly, slightly narrowed posteriorly ; abdomen short, ovate ; 

 head, thorax, abdomen above and apical half of venter, clothed with dense, 

 coarse, moderately long, bright sanguineous hairs ; base of abdomen, body be- 

 neath and legs with less dense, coarse, black hairs. Length 11-15 mm. (, Cresson.) 



Hab. — California. 



Distinguished from ealifornica Radosz., by the shorter, more robust 

 form, and large quadrate head. 



TRANS. AMEK. ENiET. SOC. XIII. (28 J AUGUST, 1886. 



