NORTH AMERICAN HYMENOPTERA. 203 



armed with a row of spines, tarsi clothed with pale golden pubescence; abdomen 

 ovate, basal segment cylindrical, clothed with dense, pale pubescence ; second 

 segment densely punctured, with a cordate black patch at the base ; third seg- 

 ment clothed with dense, pale golden pubescence, with an ovate black patch on 

 the middle ; the remaining segments clothed with dense, pale pubescence ; ven- 

 tral segments fringed with pale hairs ; under surface of entire insect paler than 

 above. Length 8.5 mm. 



Hab.— Cuba. 



Hutilla cinaloa Blake. 



Female. — Dark ferruginous, head rounded, wider than the thorax, face and 

 vertex clothed with deep goldeu pubescence, posterior margin black ; antennae ; 

 scape and first joint of flagellum ferruginous, the latter fuscous; eyes ovate, 

 large ; thorax elongate ovate, narrowed posteriorly, closely reticulate, margins of 

 the disc black, metathorax gradually rounded, armed on each side in front with 

 an acute tooth ; legs ferruginous, clothed with a few glittering hairs ; abdomen 

 ovate, second segment closely punctured, sides of apical margin with dark stains, 

 the remaining segments clothed with deep golden pubescence, having a denuded 

 central line ; under side paler than above, lateral carina distinct. Length 6.5- 

 8.5 mm. 



Hab. — Mexico. Prof. F. Sumichrast. 



Hut ilia yucatana Blake. 



Female. — Head round, wider than the thorax, fuscous, finely reticulate, thinly 

 clothed with erect black hairs ; antennae : scape and first joint of flagellum rufous ; 

 eyes ovate, granulate ; thorax elongate ovate, ferruginous, finely reticulated, 

 thinly clothed with erect hairs, metathorax gradually rounded behind; legs pale 

 rufous, clothed with pale glittering hairs ; abdomen ovate, dark ferruginous on 

 the disc, sides fuscous, apical margin of second segment clothed with pale pubes- 

 cence, the remaining segments with a central row of spots to the apex. Length 

 3 mm. 



Hab. — Mexico. Prof. F. Sumichrast. 



Hutilla pecnliaris Cresson. 



Female. — Long, linear, slender, brown ferruginous; head slightly broader than 

 thorax, transversely subquadrate ; cheeks and occiput clothed with long, pale, 

 vertex with black and mouth with long fuscous pubescence ; flagellum, except 

 base, blackish ; thorax divided into two nearly equal parts ; the anterior portion 

 short, quadrate, covered with a dense, appressed, pale golden pubescence ; poste- 

 rior portion of metathorax rather longer than the anterior, rapidly sloping be- 

 hind, sparsely pubescent and finely reticulated, substriate at base above ; legs 

 with long, sparse, pale hairs, anterior tibia? and extreme tips of the two posterior 

 pairs black, tibial spurs white ; abdomen elongate ovate, clothed with appressed 

 fuscous pubescence, the apical margin of first and second segments narrowly and 

 a spot on each side at apex of the first, silvery white ; apex of abdomen long, 

 sparse, erect, fuscous hairs ; apex of first segment campanulate, petiole short and 

 slender. Length 9 mm. (Cresson.) 



Hab. — California. 



