C. H. TYLER TOWNSEND — BIOGEOGRAPHY OE MEXICO, ETC. 37 
11. Augochlora hinghami Ckll. 
12. Augochlora ignita Smith. 
13. Augochlora nigrocyanea Ckll. 
14. Augochlora seminigra Ckll. 
15. Augochlora {Augochloropsis Ckll.) splendida Smith. 
16. Augochlora (. Augochloropsis ) subignita Ckll. 
The above seven species of Augochlora , and new snhgenns Augochlo- 
ropsis Ckll., form a group whose affinities are in the main tropical. 
17. Calliopsis bidentis Ckll. — On flowers of Bidens leucantha{ ?) Willd. 
March 14 to 23, and April 8. This species is of Neotemperate affinities, 
being closely allied to those which frequent compositae in the United 
States-" (Ckll.) 
18. Nomada limata Cress.- — On flowers of Bidens leucantha{?) Willd. 
March. “N. montezumia Smith, from Orizaba, is a synonym of this 
species.” (Ckll.) 
19. Epeolus lunatus Say. — On flowers of No. 1. March. “A common 
U. S. species, widely distributed.” (Ckll.) 
20. Coelioxys sp. — The genus is common in the U. S. 
21. Osmia sp. indet., probably- new. — “Facies of a U. S. species.” 
(Ckll.) 
22. Heriades sp. — The genus occurs in the U. S. 
23. Megachile bidentis Ckll. — On flowers of Bidens leucantha{?) Willd. 
March 8. “A singular little species, very near to M. pilosa Smith from 
the Amazons.” (Ckll.) 
24. Megachile Candida Smith. — On flowers of Verbesina sp.? April 8. 
Peculiar to Mexico. 
25. Megachile chrysophila Ckll. — June 20. “Very near to M. monte- 
zuma Cress.” (Ckll.) 
26. Megachile perpunctata Ckll. — On flowers of Calopogonium caeru- 
leum (Benth.) Britt. March 18. 
27. Megachile rhodopus Ckll. — On flowers of Uo. 1, March 3(9); and 
Lippia reptans H. B. K., June 18 ( $ ). “Allied to certain of the species 
found in Brazil.” (Ckll.) 
28. Megachile veraecrucis Ckll. — On flowers of Lippia reptans H. B. K., 
June 18. “Superficially this is much like the male of M. Candida Smith/' 1 
(Ckll.) 
29. Ceratina amabilis Ckll. — On flowers of No. 11, Ipomoea sp., and 
Canna sp. March. “Very near to C. eximia Smith from Panama.” 
(Ckll.) 
30. Ceratina dupla Say. — On flowers of Bidens leucantha{?) Willd., 
and Verbesina sp.? March. Common U. S. species. 
31. Ceratina nautlana Ckll. — On flowers of Bidens leucantha{?) Willd. 
March. “Near to C. strenua Smith from Texas.” (Ckll.) 
