AMERICAN HYMENOPTERA. 103 



Frontal line faint. Ocelli in an equilateral triangle or a little less 

 than one; the distance between the lateral ocelli decidedly less than 

 the distance between one of them and the nearest eye margin. An- 

 tennae slender, weak; the third joint a little longer than the fourth, 

 the apical joint longer than the proceeding. Pronotum strongly 

 carinated, the angles sharp. Dorsulum dull, impressed anteriorly, 

 the sculpture very fine; the suture between the dorsulum and the 

 scutellum strong. Scutellum, convex, shining, impunctate, not im- 

 pressed. Mesopleurae finely granular; metathorax rugose; metanotum 

 not channeled. Legs slender, not spined. Abdomen shining, im- 

 punctate; the petiole about as long as the hind femora, sulcate above. 

 Color black, most of the insect shining, nude except the facial pubes- 

 cence; mandibles, antennae, tegulae, legs (the posterior femora are a 

 little brownish), yellow but not bright yellow; tubercles cream- 

 colored. Wings hyaline, iridescent; venation dark brown. 



Habitat. — Lawrence, Kansas, July (E. S. Tucker). 



Stigmus lucidus is related to inordinatus Fox, but the 

 clypeus is different and the legs are paler, including the pos- 

 terior femora. 



Peiiiphredoii cockerelli n. sp. 



Female. — Length 9 mm. Anterior margin of the clypeus tridentate, 

 the inner tooth small and sharp, the outer teeth broader and larger, 

 the surface of the clypeus with distinct rather close punctures. Man- 

 dibles with three large, sharp teeth. Front with close, medium-size 

 punctures; vertex and cheeks with a few large punctures, shining. 

 Head seen from above slightly narrowing posteriorly, subquadrate. 

 Ocelli in a curved line. Third antennal joint about a third longer 

 than the fourth in the middle the joints are somewhat moniliform, but 

 still cylindrical. Mesonotum with close, distinct punctures on the an- 

 terior margin, the rest shining with a few large punctures; the anterior, 

 part is parted by a rather shallow furrow. Scutellum with some large 

 punctures. The inclosure of the metanotum with more or less irregu- 

 lar, longitudinal striae; a distinct central furrow; the usual shining 

 lunate area is, but is finely longitudinally striated, which makes it 

 dullish. Posterior face and the metapleurae rugosely punctured; the 

 posterior face with a fairly distinct furrow. Second recc. n. received 

 in the base of the second cub.; second cub. quadrate. All the tibiae 

 without spines. Petiole of the abdomen about the same length as 

 the hind basi-tarsus. Abdomen shining, impunctate; the dorsal area 

 of the third and fourth segment with many raised blisters. The 

 apical segment with a short, parallel-sided projection which is longi- 

 tudinally channeled. Entirely black, with rather long gray hair. 

 Wings hyaline, slightly dusky; venation black. 



TRANS. AM. ENT. SOC, XXXV. MARCH, 1909. 



