410 
[February 
orbits anteriorly and abbreviated line behind, yellow: thorax with a 
yellow, arcuated line each side extending on the anterior margin : scu- 
tel somewhat indented towards the tip, margined behind with yellow, 
which is slightly interrupted in the middle: wings fuliginous; ner- 
vures fuscous: tergum, six yellow bands, the anterior one widely in¬ 
terrupted, the others gradually less so to the penultimate one which is 
confluent ; the ultimate one broadest, entire : venter yellowish at base: 
feet yellowish ; thighs and posterior face of the tibiae partly black 
Length over one-fourth of an inch. 
‘‘ Hah. —Indiana.” 
“ In the abdominal markings it resembles some species of Anthidium^ 
but the maxillary palpi have two joints.” 
Unknown to me. 
2. S. foederalis, Smith. 
Stelis foederalis, Smith, Brit. Mus. Cat. ii, 275. 9 (1854.) 
“ Female. Length 2^ lines.—Black, the face covered with griseous 
pubescence, the flagellum rufo-piceous; the thorax as well as the head 
strongly punctured, the former has a scattered griseous pubescence, 
the wings fusco-hyaline, the apical margins of the wings faintly clouded, 
the apical joints of the tarsi dark ferruginous. Abdomen ovate, shin¬ 
ing and closely punctured, the basal segment having on each side a 
somewhat pear-shaped yellowish-white macula; the four following seg¬ 
ments have across the middle a slightly interrupted narrow fascia, the 
sixth immaculate, its margin entire, rounded. 
“ Male .—Closely resembling the female, the face being more densely 
pubescent; the five basal segments of the abdomen having a subinter¬ 
rupted fascia of the same color as in the female, the fasciae on each 
side are sinuated on their inferior margins; the apical segment rounded. 
“ Hah .—United States.” 
Unknown to me. 
2. S. lateralis, n. sp. 
Female .—-Head black, densely and rather deeply punctured, sparsely 
clothed with whitish pubescence; antennae black. Thorax black, densely 
punctured, sparsely clothed with whitish pubescence; tegulae black, 
shining, punctured. Wings subhyaline, apical margin faintly clouded; 
nervures fuscous; the second recurrent nervure uniting with the second 
transverse nervure. Legs black, sparsely clothed with pale pubescence. 
