464 APID.5;. 



Key to the Species. 



a. Median segment wiUi an oblong yellow spot on 



each side N. deforatn, p. 464. 



b. Median segment immaculate. 



a . Apical margins of abdominal segments 1-6 



broadly depressed, smooth, and shining .... N. solitaria, p. 464. 

 V . Apical margins of abdominal segments not 

 depressed. 

 a'^. Whole abdomen smooth, impunctate .... N. lusca, p. 465. 

 b~. Basnl abdominal segment smooth, re- 

 mainder closely and finely punctured along 

 bases of segments N. adusta, p. 465. 



*818. Nomada decorata, Smith, Cat. ii, p. 243, $ ; Ball. Ton-. Cat. 

 X, p. 342. 



" 2 ' Length 4| lines ( = about 10-11 mm.). Head and thorax 

 black ; the anterior margin of the clypeus, sides of the face, orbits 

 of the eyes, slightly interrupted at their vertex, the labrum, 

 mandibles, and scape in front orange-yellow ; the flagellum 

 beneath and its apical joint ferruginous ; otherwise fuscous above. 

 The collar, tubercles, scutellum, postscutellum, and an oblong 

 macula on each side of the metathorax yellow, having more or less 

 of a ferruginous stain ; legs yellow varied with ferruginous ; the 

 coxae and trochanters above, the posterior femora beneath, and the 

 basal joint of the posterior tarsi above, black : wings subhyaline, 

 slightly clouded at their apical margins, their nervures ferruginous. 

 The basal segment of the abdomen black above, having a broad 

 yellow fascia, its apical margin ferruginous ; the rest of tiie 

 abdomen ferruginous, each segment having a broad yellow baud, 

 that on the 2nd segment attenuated in the middle; the fascia 

 continued beneath the abdomen. 



" Hah. Northern India (coll. J. S. Baly, Esq.)." 



819. Nomada solitaria, Smith, Cat. ii, p. 243, c? ; ^all- Ton: Cat. x, 

 p. 369. 



(S . Head and thorax opaque, finely and very closely, abdomen 

 more minutely and densely punctured and shining; clypeus sub- 

 triangular, convex, transverse anteriorly ; labrum large, bent at an 

 angle to the clypeus ; median segment slightly convex, with a 

 medial vertically impressed line, on each side of which at the 

 junction of the sides with the posterior face of the segment is a 

 carina obliquely diverging upwards ; abdomen with the margins of 

 segments 1-5 broadly depressed, smooth and impunctate. Black ; 

 the apical margin of the clypeus, the labrum, mandibles, sides of 

 the face below the antennae, the scape of the last in front, a line 

 on the pronotum, the tubercles, a spot on the tegulae, two large 

 square contiguous spots on the scutellum, the apex of the femora, 

 the tibiae and tarsi of the anterior legs, the apex of the femora 

 and the tibiae of the intermediate lege, the apex of both femora 



