364 amekic;an hymenoptera. 



Caiiidia luctiiM n. sp. 



2. — 9 mm. Black, with legs beyond trochanters ferniginous ; hind tarsi and 

 their tibial spurs dusky; palpi and anterior edge of mandibles dusky rufous; 

 wings fuliginous, beautifully iridescent ; nervuresand stigma dark brown ; areolet 

 petiolate; head and thorax polished, but closely punctured, especially on meso- 

 notum and face; pile scarcely visible; head small, tapering toward the mouth, 

 so that from the front it is triangular; antennte tapering, shorter than the body; 

 thorax short, subrotund; metathorax with subobsolete carinse. the basal trans- 

 verse one wanting; abdomen shagreened. compressed from base of third segment ; 

 ovipositor short ; petiole short, postpetiole quadrate ; legs rather slender. 



One specimen from Mt. Washington, N. H. (Mrs. Slosson). 



Creinastus rerrugiiieii!^ n. sp. 



% 9 •— ~-H mm. ; ovipositor 4 mm. Ferruginous, with central vertex, occiput, 

 V-shaped line extending from base of primary wings to middle of metathoracic 

 disc, two apical segments of abdomen, basal half of 2 and dot at base of 3, black ; 

 base and apex of hind tibiae and their tarsi, subfuscous ; rest of head, prothorax. 

 scutellum and four anterior coxse and trochanters in % , yellow ; wings hyaline, 

 nervures and stigma yellowish brown ; stigma comparatively small, oval on inner 

 edge ; body polished, shagreened ; head and thorax finely and sparsely punctured, 

 parapsides present; metathorax elongate, sloping from base, superior and apical 

 median cells united, polished, subreticulate at base ; abdomen strongly compressed 

 beyond second segment; second segment longitudinally aciculate, most of two 

 and apex of one very finely so. 



Two specimens from Algonquin, 111. (Dr. Nason). 



Creinaxtiis aciciilatiis n. s]i. 



% . — 7 mm. Ferruginous, with cential vertex, occiput, spot on anterior of 

 median lobe of mesonotum, metathorax except spot on pleurse, two basal seg- 

 ments of abdomen, basal dorsal spot on three following and two apical entirely 

 black; posterior tibise and tarsi fuscous; face, mouth-parts, orbits, cheeks, scape 

 beneath, prothorax, tegulae, four anterior coxaj and trochanters, and hind femora 

 at apex, yellow ; wings hyaline, nervures and stigma dark brown, paler at base ; 

 stigma large, triangular; body shagreened. thorax finely punctured, parapsides 

 deep; metathorax completely areolated, apical median area subrugose and some- 

 what reticulate throughout; abdomen with the first two segments and basal 

 three-fourths of third distinctly aciculate; postpetiole elongate. 



One specimen from Agricultural College, Michigan. 



Creuiastiis iieiiiorali!^ n. s]). 



'J, 9 . — 6-8 mm. ; ovipositor 5 mm. Black, with entire orbits, mouth-parts and 

 tegulte. lemon-yellow; in '^ , face and prothorax also; lower face and prothorax 

 in 9 • four anterior legs, and of hind legs the trochanters and apex of femora 

 reddisli yellow; rest of liind legs vary from black to piceous ; antennte dark 

 brown : abdomen varies from dark piceous to partly rufous on segments .3 and 

 4; wings hyaline, stigma and veins dark brown, jialer at base; stigma large, 

 triangular, thick ; entire body finely shagreened, hea<l and thorax distinctly 

 punctured, parapsides distinct; metathorax completely areolated, carinse at apex 



