12 Clarence E. Mickel 
closely punctured; propodeum foveolate on basal margin; finely rugose 
on the disc; sides and posterior face of propodeum transversely striate. 
Abdomen bright ferruginous; finely, sparsely punctured; pygidium with 
large sparse punctures. Legs black, the tarsi piceous. Wings hyaline, 
venation dark. | 
do. Unknown. 
Type, a female collected at Mitchell, Nebraska, September 6, 
1916 (R. W. Dawson). 
Related to aurantia, but is much smaller than that species. 
Subfamily Pemphredoninae 
Stigmus reticulatus sp. nov. 
@. Length 5 mm. Clypeus produced medially, very slightly emargi- 
nate, punctured; inner eye-margins converging towards the clypeus; head 
very finely sculptured, with very sparse, shallow punctures; pedicel very 
slightly longer than the first joint of the flagellum; first and second joints 
of flagellum about equal in length. Pronotum dentate laterally, foveolate 
dorsally; mesonotum very finely rugose anteriorly in the vicinity of the 
impressed lines, glabrous posteriorly; scutellum glabrous; propodeum 
above strongly reticulate, posteriorly with a broad median channel, wider 
on the apical half, and crossed once or twice by transverse striae; re- 
mainder of posterior face reticulate; triangular enclosed space on mesepi- 
sterna about as large as in americanus; sides of propodeum sparsely, 
transversely rugose; petiole of abdomen sulcate above, the sulcus trans- 
versely rugose. Abdomen impunctatie; the pygidium about one and one 
half times as long as wide. Body black; mandibles except the tips, scape 
beneath and posterior lobes of the pronotum, whitish ; anterior trochanters, 
tibiae and tarsi, intermediate tibiae and tarsi, posterior tarsi, and pos- 
terior lobes of pronotum, all testaceous; abdomen iridescent. First recur- 
rent nervure received beyond the middle of the first submarginal cell; 
stigma and venation dark. 
6. Unknown. 
Type, a female collected at Inverness, Marin county, Califor- 
nia, August 27, 1916 (L. Bruner). 
Related to fraternus, but distinct from that species in the 
whitish scape and dark flagellum, the mesonotum finely rugose 
anteriorly and the reticulate propodeum. 
Se 
