74 E. T. CRESSON. 



llVoiiiada affabilis. — %■ — Blaek; head and thorax densely and cou- 

 fluently punctured, thickly clothed with short pale pubescence; sides of face, 

 clypeus, spot above, labrum, mandibles except tips, dot at summit of eyes, 

 posterior orbits, scape beneath, collar, tubercles, tegulse, scutellums, spot on 

 each side of metathorax and two spots or band on pleura, yellow; flagellum 

 fulvous beneath, second joint slightly longer than third; scutellum bilobate; 

 wings hyaline, faintly dusky at tips; legs ferruginous, the tibiae and tarsi more 

 or less yellow, posterior femora and tibise black behind; abdomen closely and 

 finely punctured, a yellow band on all the segments except the last, broadest on 

 second, all more or less narrowed in middle and that on first segment sinuate; 

 venter banded with yellow. Length .40 — .45 inch. 



Hab. — New York ; Illinois. Two specimens. This looks much 

 like the % of vincta Say, which however has the second joint of 

 flagellum much shorter than the third. 



Bfomada Ridingsii. — 9 . — Black, head and thorax strongly punctured ; 

 face shining, sparsely punctured; large irregular mark on each side of face, 

 spot on base of mandibles, short line on posterior orbits, collar, tubercles, 

 tegulse, two spots on scutellum, postscutellum and lunate mark on pleura, 

 white; labrum, mandibles, antennse, spot beneath wings, sides of metathorax 

 and the legs ferruginous; antennae short, second joint of flagellum longer than 

 third; mesothorax coarsely and confluently punctured; scutellum slightly 

 bilobate; base of metathorax smooth, impunctured. sides clothed with short 

 silvery pubescence; wings fuscous at tips; abdomen closely and strongly punc- 

 tured, ferruginous, segments 1 — 5 each with a white band, broad and even on 

 the first, broad and dilated laterally on second and narrow on the remaining 

 segments; venter ferruginous with a white dot on each side of the third 

 segment. Length .40 inch. 



Hub — Colorado, (Mr. James Ridings). This handsome species 

 resembles Putmani Cress., which however has the mesothorax sparsely 

 punctured and shining; the ornamentation is very much alike in 

 both species. 



IVoiuada SuaviS. — 9- — Black, opaque; head and thorax strongly punc- 

 tured, mesothorax coarsely so; face shining, sparsely punctured; sides of face 

 nearly up to summit of eyes, clypeus, confluent spot above, labrum, mandibles 

 except tips, dot below anterior ocellus, posterior orbits, scape beneath, collar, 

 tubercles, tegulse, band or two spots on scutellum, postscutellum, two ovate spots 

 on metathorax, and large mark on pleura, lemon-yellow; flagellum dull testa- 

 ceous, brown above, second joint longer than third; scutellum bilobate; wings 

 fuscous on apical half with hyaline mark beneath marginal cell ; legs yellow 

 more or less black behind, four anterior femora generally fulvous at base before; 

 abdomen closely and rather strongly punctured, black with a yellow band on 

 segments 1 — 4, very broad and dilated laterally on second, fifth segment entirely 

 yellow, apical margin of the segments often tinged with fulvous especially on 

 the sides; venter banded with yellow, the last segment with a large round 

 yellow spot on each side. Length .35 inch. 



'^ .7— Resembles the 9) but the metathorax is black immaculate, clothed 

 laterally with silvery-white pubescence. Length .40 inch. 

 Hab. — California, (Behrens); Oregon, (H. Edwards). 



