46 JMyroii Harmon Sivcnk 



ouslv dififerent, from the same locality collected three days later 

 by L. Bruner. 



Nomada (Nomada) propinqua n. sp. 



?. Length 7 mm. Red, a large spot above insertion of antennae extend- 

 ing down in tine clypeal sutures, a spot involving ocelli, cheeks behind, 

 propleura, a median line on mesoscutum, depressed sides of mesoscutellum 

 and metanotum, propodeum except oblong areas on the angles and more 

 or less of base of enclosure, metapleura, coxae and femoral bases behind 

 and whole of posterior tibiae, black or blackish. Face with a thin 

 appressed silky white pubescence, clypeus finely and indistinctly punctured, 

 face indistinctly punctured, vertex and mesonotum coarsely but not 

 strongly punctured. Antennae wholly red, joint 3 three-fifths as long as 

 4, the scape bearing numerous short pale bristles. Labrum, cheeks, pectus, 

 coxae, angles of propodeum and sides of tergites 3-5 with silky white 

 hair, nowhere very dense, that on occiput, mesonotum and pleura sparser 

 and grayer, the usual black bristle tufts on sternite 6. Mesoscutellum 

 broadly bilobed. Tegulae testaceous. Wings hyaline, the marginal cell 

 and a broad apical band infuscated, nervures and stigma deep brown, basal 

 nervure basad of transverso-medial, third submarginal cell narrowed 

 above, narrower than second. Outer face of hind tibiae smooth, no 

 obvious setae at apex. Abdomen red, not obviously punctured, the apical 

 margins of tergites 1-4 broadly smooth and impunctate, of 5 with a nar- 

 row terminal band of short dense white hair, base of tergite i black, 

 more or less emarginate medially, tergite 2 with large subpyriform lateral 

 yellow spots, 3 with smaller rounded lateral spots, 4-6 unmarked, 5 with 

 a few lateral black bristles. 



3- Length 8 mm. Black; clypeus, labrum, mandibles, except tips, 

 lateral face marks extending narrowly along orbits to level of insertion 

 of antennae, scape in front, anterior legs beyond trochanters, large pyri- 

 form marks on abdominal tergite 2 which nearly meet on the median line, 

 smaller lateral spots on 3 and a transverse bar on 6, yellow ; spots along 

 orbital margin on sides of vertex, mesoscutum except a broad median 

 line and the margins, mesoscutellum, metanotum, a crescent-shaped spot 

 beneath and t3'pically a round spot behind the tubercles, and last four 

 legs except coxae and areas on both faces of femora basally, especially 

 posterior femora, red. Flagellum red, the basal four joints above together 

 with scape behind, black, joint 3 about one-half as long as 4. Mandibles 

 at tip broad and very slightly medially notched, but not toothed as in 

 the subgenus Gnathias. Mesoscutellum low, feebly and broadly subbilo- 

 bate. Wings and nervuration as in female, except that the third sub- 

 marginal is sometimes broader above. Abdomen red, rather paler than 

 the red of thorax, marked with yellow as described, base of tergite i 



46 



