ocr. 4, 1923 ROHWER: NEW PEMPHREDONINE WASPS 371 
longitudinal lines, under high magnification the posterior portion is lineolate; 
suture between the scutum and the scutellum foveolate; scutellum flat, the 
surface finely reticulato-granular; the metanotum sculptured like the scu- 
tellum; dorsal aspect of the propodeum with a median longitudinal ridge 
and with three U-shaped ridges, the surface between these with large irregular 
reticulations; mesepisternum granular above, shining below; sides of the 
propodeum obliquely striate with a tendency to become reticulate dorsally ; 
petiole with two longitudinal carinae which approximate each other posterior- 
ly; the area between the carinae anteriorly with transverse rugae; the area 
laterad of the carinae with oblique ridges; abdomen highly polished; pygidium 
sharply defined, two times as long as the basal width; second and third 
abscissae of the cubitus subequal. Black; antennae, four anterior legs, pos- 
terior trochanters, bases of the posterior tibiae and the posterior tarsi ferru- 
gineous; tubercles white; tegulae testaceous; wings hyaline, iridescent; vena- 
tion, including the stigma, pale brown. 
T ype-locality.— Starkville, Mississippi. 
Described from four females (one type) received from M. R. Smith, who 
states that the species was nesting in holes in a floor of a piazza, and that the 
nests were provisioned with aphids. 
Type and paratype.—Cat No. 26479, U. S. N. M. Paratypes returned 
to the collection of the Agricultural College of Mississippi. 
