718 /OOLOGY 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, 

 pnpilled 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. 



cT. 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 , 

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



5 c? 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 ANNUL ATDS. 

 <>:h/iii'ri/K <iiiH>il<ifiis< SAY, Long's ^<l Exped., ii, 348. 



4.') <J 9 specimens; Colorado; Dr. H. C. Yarrow, Wni. H. Hance, 

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



8-J. ODYNERUS DtJOTUS. 

 Oflyncrun fluctus, CRESS., Trans. Am. Eut. Soc., iv, 238. 



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



83. ODYNERUS ANORM1S. 

 KitiHi'Hfs (iiKirniis, SAY, Long's L!d Expert., ii, 340. 



2 <? specimens; Arizona; 1H73; H. W. Henshaw: Colorado; Dr. H. 



( !. Yarrow. 



