NORTH AMERICAN HYMENOPTERA. 253 



pubescence, iiiterrii]>ted at the middle, apical inargiu black ; the remaining seg- 

 ments fringed with golden pubescence; under side finely punctured, shining, 

 paler than above. Length 6.5 mm. 



Hub. — Mexico. Prof. F. Sumichrast. 



$>i|>Iiieroi>lithaliiia iiiiuutissiina Blake. 



Female. — Head quadrate, wider than the thorax, po.sterior angles acute, fuscous, 

 thinly clothed with pale glittering pubescence ; face, scape of antennpe and man- 

 dibles ferruginous; eyes round, prominent; thorax ovate, dark ferruginous, 

 clothed with erect dark hairs, metathorax roundly truncate, sides denticulate ; 

 legs fuscous, clothed with pale hairs, intermediate and posterior tibise armed with 

 spines ; abdomen ovate, basal segment ferruginous, second segment fuscous, hav- 

 ing on the disc a transver.se, posteriorly emargiuate band of fine glittering pubes- 

 cence ; apical segments clothed with pale pubescence. Length 3 mm. 



Hub. — Mexico. Prof. F. Sumichrast. 



Sphierophtlialiiia pyginea Blake. 



Female. — Ferruginous; head round, wide as thorax, moderately coarsely punc- 

 tured ; autennpe honey yellow, scape clothed with yellowish pubescence ; tips of 

 mandibles blackish ; thorax subovate, narrowed posteriorly, densely punctured.' 

 sparsely clothed with erect white hairs ; legs honey yellow, clothed with pubes- 

 cence of the same color; abdomen elongate ovate, closely punctured, thinly 

 clothed with long, erect, whitish hairs ; apical margins of segments above fringed 

 with white pubescence. Length 4..5-7 mm. 



Hab. — Texas, Colorado, Xevada. Four specimens. 



jipliterophtlialnia virguucula n. sp. 



Female.— He-Ad rounded, not as wide as thorax, ferruginous, covered with 

 coarse, confluent punctures ; antennse fusco-ferruginous ; eyes round and promi- 

 nent ; thorax robust, ovate, narrowed posteriorly, ferruginous, confluently punc- 

 tured, thinly clothed with short, erect, pale hairs, a small lateral notch behind 

 the mesothorax ; metathorax obliquely truncate ; legs castaneous, thinly clothed 

 with pale hairs, the tarsi somewhat paler ; abdomen ovate, black, finely and 

 closely punctured, sparsely clothed with erect white hairs ; apical margins of all 

 the segments fringed with white pubescence. Length 5.5 mm. 



Hab. — New Mexico. 



^iplisierophthaliiia psaininadronia Blake. 



Female. — Head black, somewhat wider than the thorax, quadrate, j)osterior 

 angles acute; face, scape of antennae and mandibles ferruginous, tips of the latter 

 black ; eyes large, round, ])rominent ; vertex and posterior margin nearly black, 

 clothed with scattered golden pile ; thorax short, sharply constricted at middle, 

 sides crenulated, ferruginous; legs pale ferruginous, thinly clothed with glitter- 

 ing hairs, intermediate and posterior tibite armed with spines, calcaria white : 

 abdomen ovate, black, basal segment margined with golden pubescence, second 

 segment with two small fuscous spots at the base and two ovate spots clothed with 

 pale golden pile near the apical margin, which is adorned in the .same manner: 

 ai)ical segments fringed with pale golden pubescence; under .side pale rufous, 

 shining, finely punctured. Length 5.5-6.5 mm. 



Hab. — Mexico. Prof. F. Sumichrast. 



