NO. 1487. NORTH AMERICAN DIGGER WASPS— FERNALD. 375 



row of long-, golden hairs; the edge and tip of the terminal tooth faintly 

 tinged with ferruginous. 



Thoviiw. — Collar not closely appressed against the niesonotuni, its 

 faces nearly vertical, the anterior one slightly ol)lique to the neck for 

 a very short distance at its lower part; the anterior face and dorsal 

 edge pubescent and with numerous long, golden hairs; neck black 

 above in the middle, pubescent laterally; dorsal edge of the collar 

 slightly flattened near the middle; its sides pubescent about half way 

 down, then black; prothoracic lobe })lack in front, pubescent on its 

 posterior half, with numerous yellow hairs; prosternum black, with a 

 pubescent spot in front of each coxa; with quite numerous mediimi- 

 sized punctures and hairs; mesonotum with a broad, pubescent band 

 on each side, beginning just above the prothoracic lobe, passing up 

 around the tegula, then backward to the posterior end of the plate 

 where it turns inward, becoming narrower, and meets the ))and from 

 the opposite side; the middle of the plate densely black, sericeous, 

 almost concealing the anterior median groove, which appears to extend 

 back about one third the length of the plate; there are numerous 

 short, erect golden hairs over the entire surface of the mesonotum; 

 scutellum ])lack sericeous, with a slight median groove visible at 

 some angles; postscutellum densely pubescent; dorsum of the median 

 segment densely pubescent and with man}" rather short, erect, golden 

 hairs; fovea crescentic, rather narrow; posterior end from the fovea 

 to the petiole covered by a large, squarish pubescent spot, its sides 

 somewhat rounded; there is also a pubescent band along the side, 

 against the stigmatal groove; between this and the posterior pubescent 

 square, and on a narrow strip running inward above the square to the 

 fovea the l)lack surface of the plate is visible, its surface slightly 

 roughened; posterior end and sides with quite numerous long, golden 

 hairs; mesopleura with a small pubescent spot above and slightly in 

 front of the coxai and a large spot behind the prothoracic lobe, a por- 

 tion of which extends forward in front of the lobe to the edge of the 

 mesonotum in front of the tegulw; the remainder black, with tine, 

 scattered punctures and somewhat pale sericeous in places, and with 

 numerous, long and short, golden hairs distributed over the entire 

 pleura; metapleura with a pubescent band, its posterior half some- 

 times paler, running from the hind coxae along the stigmatal groove 

 and side of the dorsum to the postscutellum, wider in front; the rest 

 of the plate pale sericeous, with quite numerous, tine punctures and 

 golden hairs varying in length; mesosternum yellowish sericeous, and 

 with many rather short, golden hairs; petiole black, straight, pale 

 sericeous, and with numerous short, 3'ellow hairs; but little more than 

 half as long as the second hind tarsal segment. 



Abdomen. — Rather broad and stout, rising upward quite sharply 

 behind the petiole; about equally pointed at the ends; grayish seri- 



