AMERICAN HYMENOPTERA. 241 



nient densely, coarsely punctured, apical segment more coarsely and not so 

 densely punctured as tbe preceding. 



Black; scape, clypeus in the middle of the anterior half, mandibles at base, 

 tubercles, four anterior femora in front, four posterior legs with tibia' and basal 

 joint of tarsi and a spot on each side of the first four abdominal segments yellow, 

 anterior tibise, and the tarsi otherwise brownish testaceous. 



Type locality, Lehigh Gap, Pennsylvania. Type, Acad. Nat. 

 Sci. Philadelphia- June 25, 26, 1901. 



Paranothyreus riigicolli'< u. sp. 



Nearest to snowi, but distinguished by rugose pronotum and the 

 shining quadrate pits of the metanotuni. 



% . 7.5 mm. long. Head. — Front impressed, sparsely punctured, the punc" 

 tures small and setigerous, space between and just back of posterior ocelli coarsely 

 punctured, cheeks rather densely finely punctured; distance between posterior 

 ocelli greater than the distance between the lateral ocellus and the eye margin ; 

 distance between the eyes at base of clypeus less than the clypeus is high ; cly- 

 peus yellow, the sculjiture hidden by the dense, appressed, silvery pubescence; 

 first joint of antenna distinctly longer than the second, but shorter than the 

 second and third together. 



Thorax. — Pronotum rugose, the anterior lateral angles strongly produced ; 

 dorsulum with dense, small, setigerons punctures distinctly separated in the 

 middle, nearly adjoining on the sides; mesopleura with the punctures much 

 finer and sparser than on the dorsulum; scutellum with the punctures larger 

 and sparser than on the dorsulum; postscutellum roughened, apparently impunc- 

 tate ; superior face of metathorax with a medial row of quadrate pits, outside of 

 this the surface is irregularly reticulate, posterior face with a median cuneate 

 sulcus bounded on each side by a series of quadrate pits; metapleura smooth, 

 almost polished ; wings clear, slightly brownish, nervures and stigma dark 

 brown, transverse median nervure distinctly basad of the basal nervure, recur- 

 rent nervure received by the submarginal cell a little before the middle. 



Abdomen. — Covered with microscopic, indistinctly defined, setigerous punctures, 

 the penultimate and apical segments rather distinctly punctured. 



Black; scape except posterior face, mandibles except the apex, tubercles, 

 anterior femora except a broad line posteriorly, middle femora beneath and on 

 the apical half of the superior face, four anterior tibiae except a spot beneath at 

 apex, posterior tibiae in front, basal joint of tarsi, the trochanters wholly or in 

 part and segments 1, 2, 3, 4 and 5 with a more or less broadly interrupted band 

 yellow, tegulfe, claws, and the tarsi except basal joint more or less brownish, the 

 tarsi somewhat fuscous. 



Type locality, Rivertou, New Jersey. Type, Acad. Nat. Sci. 

 Phila. July 8, 1901 (C. W. Johnson). 



Steuocrabro nelli n. sp. 



Related to aniens, but differs in the opaque almost inipunctate 



TRANS. .\M. ENT. SOC. XXX. (31) AUGUST. 1904. 



