718 ZOOLOGY— INSECTS. 



apical margin of remaining .segments above and beneath (more or less 

 indented laterally above), and a large quadrate mark on apex of second 

 ventral segment, lemon-yellow; tarsi pale ferruginous; tegulse yellowish, 

 pupilled with fulvous; wings subhy aline, with costse of anterior pair yel- 

 lowish-fuscous ; marginal cell fuscous. Clypeus elongate, convex at base, 

 flattened at apex, which is deeply emarginate, the surface shining-, with a 

 few large, scattered punctures; thorax densely and deeply punctured; abdo- 

 men shaped much like that of fraterna, densely punctured, clothed with a 

 dense, yellowish, sericeous pile, very conspicuous in certain lights; lateral 

 tubercle on first segment distinct. Length, 5i lines. 



c? . — Varies considerably in markings ; clypeus entirely lemon-yellow ; 

 band on post scutellum sometimes interrupted medially; dot on each side of 

 first abdominal segment generally wanting; lateral mark on second seg- 

 ment varies considerably both in length and breadth ; the broad apical mar- 

 gin sometimes indented; hook at tip of antennas ferruginous and very 

 acute ; the pubescence of the body is longer and more dense than in 9 , 

 and the sericeous pile on abdomen more conspicuous. Length, 5-6 lines. 



5 S 9 specimens; Colorado; Dr. H. C. Yarrow. This is allied to 

 verticalis, Say, but is less robust and more densely pubescent; 9 clypeus 

 narrower, with apex more deeply emarginate. 



81. ODYNERUS ANNULATUS. 

 Odynerus annulatvs, Say, Long's 2d Expert., ii, 348. 



43 £ 9 specimens; Colorado; Dr. H. C. Yarrow, Wm. H. Hance, 

 Almont Barnes: New Mexico; Dr. H. C. Yarrow, Dr. Oscar Loew. 



82. ODYNERUS DUCTUS. 



Odynerus ductus, Cress., Traus. Am. Ent. Soc, iv, 238. 



5 t? specimens; New Mexico; Dr. H. C. Yarrow. 



S3. ODYNERUS ANORM1S. 

 Eumenes anormis, Say, Long's 2d Exped., ii. 346. 



2 S specimens; Arizona; 1873; H. W. Henshaw: Colorado; Dr. H. 

 C. Yarrow. 



